ADAS Glossary

Your go-to reference for understanding ADAS terminology, sensors, calibration procedures, diagnostics, and vehicle technologies.

Core ADAS Features & Systems

Active Rollover Protection: Stability intervention that detects impending rollover and brakes/cuts power to bring the vehicle back under control.
Adaptive Cruise Control (ACC): Cruise control that uses a front radar and/or camera to automatically maintain a set following distance from the vehicle ahead, slowing and accelerating on its own.
Adaptive Headlights / Adaptive Front-Lighting System (AFS): Headlights that swivel or reshape their beam based on steering angle and speed to light up curves.
ADAS (Advanced Driver Assistance Systems): The umbrella term for electronic systems that use sensors (cameras, radar, lidar, ultrasonics) to assist the driver with safety and convenience functions like braking, steering, and warnings. Nearly all ADAS features require calibration after collision repair, windshield replacement, or alignment work.
Anti-lock Braking System (ABS): Prevents wheel lockup during hard braking by rapidly modulating brake pressure, preserving steering control.
Around View Monitor (AVM): Nissan's original name for the 360-degree camera system; the term is now used generically and in calibration menus.
Augmented Reality HUD: A HUD that overlays graphics (turn arrows, lane highlights) directly onto the real road scene at the correct depth.
Automated Parking System: Fully automated parking where the vehicle controls steering, throttle, and braking into the space.
Automatic Emergency Braking (AEB): A system that applies the brakes automatically when a frontal collision is imminent and the driver hasn't reacted. Becoming mandatory on US vehicles under FMVSS 127.
Automatic High Beam (AHB) / High Beam Assist: A camera-based system that toggles between high and low beams automatically based on oncoming traffic.
Automatic Lane Change: The vehicle executes a lane change on its own, either when the driver taps the signal or fully autonomously in some systems.

Backup Camera / Rearview Camera: The rear-mounted camera that displays the area behind the vehicle when reversing. Required on all new US vehicles since 2018.
Blind Spot Collision-Avoidance Assist: Hyundai/Kia's name for blind spot monitoring with active intervention.
Blind Spot Intervention: BSM with active steering or braking to prevent a lane change into an occupied blind spot.
Blind Spot Monitoring (BSM): Rear corner radars that detect vehicles in the blind spot and illuminate a warning in or near the side mirror.
Brake Assist (BA) / Emergency Brake Assist: Detects panic braking from pedal speed and applies maximum braking force even if the driver doesn't press hard enough.

Camera Mirror System (CMS) / Digital Rear-View Mirror: A rear camera feed displayed inside the mirror housing, replacing or supplementing the optical mirror.
Cross Wind Assist: A stability function that applies asymmetric braking to counteract strong side winds, common on vans and SUVs.
Curve Speed Adaptation: ACC functionality that slows the vehicle ahead of curves based on map data or camera lane geometry.
Cyclist Detection: Detection and automatic braking capability specifically tuned for bicyclists crossing or traveling alongside the vehicle.

Door Open Warning / Safe Exit Assist: Warns occupants (or locks the doors) when a vehicle or cyclist is approaching as they're about to open the door.
Driver Attention Monitoring / Driver Drowsiness Detection: Software that watches steering patterns or driver behavior for signs of fatigue and suggests a break.
Driver Monitoring System (DMS): An interior infrared camera aimed at the driver's face to track eye gaze and head position, used to confirm attention in hands-free driving systems.

eCall / Automatic Crash Notification: Automatically calls emergency services with vehicle location after a crash is detected. Mandatory in the EU.
Electronic Stability Control (ESC): Applies individual wheel brakes and reduces engine torque to correct skids and keep the vehicle on its intended path. The foundation many ADAS features build on.
Emergency Lane Keeping (ELK): A stronger lane-keeping intervention that prevents the vehicle from leaving the road or crossing into oncoming traffic.
Emergency Steering Support: Similar to evasive steering assist; helps stabilize and guide the vehicle through an emergency avoidance maneuver.
Evasive Steering Assist: Adds steering torque to support a driver's emergency swerve around an obstacle when braking alone won't avoid it.

Forward Collision Warning (FCW): A warning system that alerts the driver (visual, audible, or haptic) when a frontal collision with a vehicle or object is likely. The warning-only precursor to AEB.
Front Cross-Traffic Alert (FCTA): Warns of crossing traffic at the front of the vehicle when pulling forward out of blind intersections or parking spots.

Hands-Free Highway Driving: Level 2 systems (BlueCruise, Super Cruise) that allow hands off the wheel on mapped highways while a driver-facing camera confirms attention.
Head-Up Display (HUD): Projects speed, navigation, and ADAS information onto the windshield in the driver's line of sight. Some HUDs require recalibration after windshield replacement.
Highway Driving Assist (HDA): Hyundai/Kia/Genesis term for combined ACC and lane centering on highways; used generically for Level 2 highway systems.
Hill Descent Control: Automatically modulates the brakes to maintain a slow, controlled speed on steep downhill grades.
Hill Start Assist: Holds brake pressure for a moment on inclines so the vehicle doesn't roll back when moving from brake to throttle.

Intelligent Speed Assistance (ISA): A system that reads speed limits (via camera or map data) and warns the driver or actively limits vehicle speed. Mandatory on new vehicles in the EU.

Junction / Intersection AEB: Automatic braking that covers intersection scenarios such as turning across oncoming traffic.

Lane Centering Assist (LCA): Continuous steering assistance that keeps the vehicle centered in its lane, rather than only correcting at the lane edge.
Lane Change Assist: A system that supports or automates lane changes, checking blind spots and steering the vehicle over when conditions are clear.
Lane Departure Warning (LDW): A camera-based system that warns the driver when the vehicle drifts out of its lane without a turn signal.
Lane Keeping Assist (LKA): A system that applies gentle corrective steering or braking to guide the vehicle back into its lane after unintended drift.
Left Turn Crash Avoidance: AEB tuned to prevent collisions when turning left across the path of an oncoming vehicle.

Matrix LED / Pixel Headlights: Headlights made of many individually controlled LED segments that can keep high beams on while masking out zones around other vehicles.

Night Vision Assist: A thermal or infrared camera system that detects pedestrians and animals beyond headlight range and displays them to the driver.

Occupant Alert / Rear Seat Reminder: Reminds the driver to check the rear seat at shutdown, to prevent children or pets being left in the vehicle.
Occupant Monitoring System (OMS): Interior sensing that monitors all occupants — seat occupancy, child presence detection, and seatbelt status.

Parking Assist / Park Assist: Ultrasonic-based guidance that steers the vehicle into parallel or perpendicular spots while the driver controls speed.
Parking Sensors (Ultrasonic): Bumper-mounted ultrasonic transducers that measure distance to nearby obstacles and beep with increasing urgency.
Pedestrian Detection / Pedestrian AEB: AEB capability extended to recognize and brake for pedestrians, typically using camera-radar fusion.
Post-Collision Braking / Multi-Collision Brake: Automatically brakes the vehicle after an initial impact to reduce the chance and severity of secondary collisions.
Predictive Cruise Control: Cruise control that uses map data and GPS to adjust speed ahead of hills, curves, or exits before the driver can even see them.

Rear Automatic Emergency Braking: Automatic braking while reversing, triggered by ultrasonic sensors, rear radar, or the backup camera detecting an obstacle.
Rear Cross-Traffic Alert (RCTA): A warning system that uses rear corner radars to alert the driver to vehicles approaching from the sides while backing out of a parking space.
Rear Cross-Traffic Braking: RCTA with automatic brake intervention if the driver doesn't respond to the warning.
Remote Smart Parking Assist: The vehicle parks itself or pulls out of a tight space while the driver stands outside using the key fob or an app.
Road Edge Detection: Camera capability that recognizes unmarked road edges (grass, gravel, curbs) so lane-keeping works on roads without painted lines.

Speed Limit Assist: TSR coupled with cruise control so the vehicle adopts posted speed limits automatically or after driver confirmation.
Speed Sign Fusion: Combining camera-read speed signs with map database speed limits to determine the most reliable current limit.
Stop-and-Go Adaptive Cruise Control: An ACC variant that can brake the vehicle to a full stop in traffic and resume automatically, used in heavy congestion.
Surround View Monitor / 360-Degree Camera: A system that stitches images from four or more wide-angle cameras into a top-down view of the vehicle for parking.

Tire Pressure Monitoring System (TPMS) — direct: Pressure sensors mounted inside each wheel transmit actual PSI readings to the vehicle.
Tire Pressure Monitoring System (TPMS) — indirect: Infers low tire pressure from wheel speed sensor data without physical pressure sensors; requires a reset/relearn after tire service.
Traction Control System (TCS): Limits wheel spin during acceleration by braking the spinning wheel or cutting power.
Traffic Jam Assist (TJA): Low-speed combination of stop-and-go ACC and lane centering for hands-on driving in congestion.
Traffic Sign Recognition (TSR): A camera system that reads road signs (speed limits, no-passing zones) and displays them on the dash or HUD.
Trailer Backup Assist: Steers the vehicle automatically while reversing with a trailer; the driver indicates trailer direction with a knob or screen.
Trailer Sway Control: Detects trailer oscillation through the stability control system and applies selective braking to dampen it.

V2I (Vehicle-to-Infrastructure) Communication: Communication between vehicles and roadside systems like traffic signals and work-zone beacons.
V2V (Vehicle-to-Vehicle) Communication: Direct wireless exchange of position, speed, and hazard data between nearby vehicles.
V2X (Vehicle-to-Everything) Communication: Wireless communication between the vehicle and other vehicles, infrastructure, networks, and pedestrians for cooperative safety.

Calibration Types & Procedures

ADAS Calibration: The process of physically aligning and electronically initializing ADAS sensors so they perceive the world exactly as the vehicle's software expects. Required after collision repair, glass replacement, suspension/alignment work, or sensor R&R.
Aiming (Radar/Camera Aiming): The physical or electronic adjustment of a sensor's pointing angle so its centerline matches the vehicle's thrust line within OEM tolerance.

Bumper R&R Calibration Trigger: Removing and reinstalling a bumper cover with radar or ultrasonic sensors behind it typically mandates recalibration per OEM position statements.

Calibration Drive Cycle: The specific speed, duration, road type, and conditions required to complete a dynamic calibration (e.g., 25–40 mph, clear lane lines, 10+ minutes).
Calibration Environment Requirements: Shop conditions required for valid static calibration: level floor, uniform lighting, neutral background, no reflective objects, and minimum clear space (often 30+ feet).
Calibration Report / Documentation: The printed/digital record proving calibration was completed: vehicle info, procedures performed, before/after values, and pass status. Critical for liability and insurance billing.
Calibration Validation / System Verification Test Drive: A post-calibration road test confirming systems operate correctly at town and highway speeds with no warnings.

Dual / Combined Calibration: A procedure requiring both a static target session in the shop and a dynamic road drive to complete; common on many late-model vehicles.
Dynamic Calibration: Calibration performed by driving the vehicle on the road at specified speeds and conditions while a scan tool runs the procedure, letting the sensor learn from real lane lines and traffic.

Floor Flatness / Level Floor Requirement: OEMs specify maximum floor slope (often within a few millimeters across the bay) because target height math assumes a level plane.
Forward-Facing Camera Calibration / Windshield Camera Calibration: Calibration of the camera module mounted behind the windshield; the single most common calibration trigger, required after nearly every windshield replacement.
Four-Wheel Alignment: Alignment that measures and adjusts all four wheels, establishing the thrust line ADAS calibrations depend on.
Front Radar Calibration: Aiming and initializing the front bumper/grille radar used by ACC and AEB, typically with a reflector, plate, or doppler simulator.

Headlamp / Adaptive Headlight Calibration: Aiming and initializing adaptive or matrix headlamps after replacement or front-end repair.
Health Check / All-Systems Scan: A complete scan of every module on the vehicle, branded "Health Check" by Toyota and others.

Initialization (Sensor Initialization): The electronic step that tells a new or disturbed sensor to begin its setup/learn process, usually commanded through a scan tool.

Lidar Calibration: Alignment of lidar units on vehicles equipped with them (e.g., Level 3-capable models); typically OEM-tool procedures with tight tolerances.

Mirror R&R Calibration Trigger: Mirrors housing cameras or radar require calibration after removal or replacement.

Night Vision Camera Calibration: Aiming the thermal/IR camera, usually grille-mounted, after front-end repairs.

Post-Alignment Calibration: Calibrations (often SAS and forward camera/radar) required after a wheel alignment changes the thrust line.
Post-Repair Calibration: The blanket requirement to calibrate any ADAS sensor that was removed, replaced, or had its aim disturbed during repair.
Post-Scan (Post-Repair Diagnostic Scan): A full-system scan after repairs confirming no remaining codes and all required calibrations are complete.
Post-Suspension-Repair Calibration: Calibration triggered by suspension work that changes ride height or geometry.
Post-Windshield-Replacement Calibration: Camera calibration required after glass replacement, even if the camera was never unbolted — the new glass changes the optical path.
Pre-Calibration Requirements: The vehicle conditions that must be met before calibrating: correct tire pressure, full or specified fuel level, empty cargo, no DTCs, OEM ride height, battery voltage maintained.
Pre-Scan (Pre-Repair Diagnostic Scan): A full-system DTC scan before repairs begin, documenting the vehicle's electronic condition as received.

Rear Camera Calibration: Calibration of the backup camera's guidelines and field of view, often needed after tailgate, hatch, or camera replacement.
Rear Radar / Blind Spot Radar Calibration: Calibrating the rear corner radars behind the rear bumper that power BSM and RCTA; triggered by bumper R&R or rear-end repairs.
Relearn Procedure: Any procedure that teaches a module its baseline values again — TPMS relearn, throttle relearn, occupant sensor relearn, etc.
Ride Height Calibration: Inputting or measuring vehicle ride height so radar and camera angle calculations are correct; required on some makes after suspension work.

Seat Weight Sensor Calibration / Occupant Classification Calibration: Zeroing and verifying the passenger seat weight sensors that decide airbag deployment, using calibrated weights on some platforms.
Self-Calibration / Auto-Calibration: Sensors that fine-tune themselves continuously during normal driving. This does not replace required calibration after repairs.
Side Radar Calibration: Calibration of side-mounted radar sensors used by some lane change and intersection systems.
Static Calibration: Calibration performed in the shop with the vehicle stationary, using targets, reflectors, or patterns positioned at precise distances and heights specified by the OEM.
Steering Angle Sensor (SAS) Calibration / Reset: Zeroing the steering angle sensor after alignment, steering, or suspension work. An uncentered SAS will fail or skew downstream ADAS calibrations.
Surround View / AVM Camera Calibration: Calibrating all 360-view cameras using floor mats or targets laid around the vehicle so the stitched top-down image aligns correctly.

Target-Based Calibration: Any static calibration that uses a printed pattern board, reflector, or cone placed at OEM-specified coordinates relative to the vehicle.
Targetless Calibration: Procedures that don't require physical targets — typically dynamic drives or software-only initializations.
Thrust Line / Thrust Angle: The direction the rear wheels actually push the vehicle. Calibrations reference the thrust line, not the body centerline — which is why alignment must be verified first.
Toe, Camber, Caster: The three primary alignment angles: toe (wheels pointing in/out), camber (wheel tilt in/out at top), caster (steering axis tilt). Toe and thrust angle most directly affect ADAS.

Ultrasonic Sensor Initialization: Registering and testing park sensors after bumper or sensor replacement so the system knows sensor positions.

Vehicle Centerline: The imaginary line running through the geometric center of the vehicle, used to position targets; found via plumb bobs, lasers, or wheel-mounted devices.

Wheel Alignment Verification (Pre-Calibration): Confirming alignment angles are within spec before calibrating, since a bad thrust angle makes a "successful" calibration dangerously inaccurate.

Yaw Rate Sensor Calibration: Zeroing the sensor that measures vehicle rotation; required on some platforms after stability-system or collision repairs.

Zero Point Calibration: Toyota's term (used widely) for resetting a sensor's reference point — common for yaw rate, deceleration, and steering sensors.

Sensors & Hardware

24 GHz Radar: The older automotive radar band, mostly used for short-range functions like blind spot monitoring; being phased out in favor of 77 GHz.

4D Imaging Radar: Next-generation radar that adds elevation measurement to range, angle, and velocity, producing a much denser picture closer to lidar output.

77 GHz Radar: The current standard automotive radar band, offering better resolution and range in a smaller package; used for ACC, AEB, and increasingly all radar functions.

Accelerometer: Measures linear acceleration forces; used for crash detection, hill detection, and motion sensing.

Camera Bracket (Windshield): The bracket bonded to the glass that the forward camera clips into; its position on replacement glass directly affects calibration success.
Capacitive Steering Wheel Sensor: A sensor woven into the steering wheel rim that detects hand contact for hands-on monitoring, more reliable than torque-based detection.
CMOS Image Sensor: The chip inside automotive cameras that converts light to digital signals; automotive versions are tuned for high dynamic range and LED flicker mitigation.
Corner Radar: Radar units mounted at bumper corners for blind spot, cross-traffic, and intersection coverage.

Detection Range: The maximum distance at which a sensor can reliably detect objects.

Emblem Radar Cover: A front emblem engineered to pass radar through; replacing it with a non-OEM badge can degrade radar performance.

Fisheye Camera: Ultra-wide (~190°) cameras used in surround-view systems; their heavy distortion is corrected in software, which is why AVM calibration is so position-sensitive.
Flash Lidar: Lidar that illuminates the whole scene at once like a camera flash instead of scanning, capturing the full frame instantly.

GPS / GNSS Receiver: Satellite positioning receiver providing vehicle location for navigation, geofenced features, and hands-free system maps.
Gyroscope: Measures rotational rate; combined with accelerometers inside the IMU.

HD Map / High-Definition Mapping: Centimeter-accurate lane-level maps that hands-free systems (Super Cruise, BlueCruise) compare against sensor data; these systems only operate on pre-mapped roads.
Heated Camera Window: The defroster element in the windshield's camera zone preventing fog/ice from blinding the camera.
High-Precision GNSS / RTK Positioning: Enhanced satellite positioning accurate to centimeters, used by hands-free highway systems to stay locked to mapped lanes.

Inertial Measurement Unit (IMU): A combined accelerometer/gyroscope package giving the vehicle a precise sense of its own motion in all axes.
Infrared (IR) Camera: A camera sensitive to infrared light, used in driver monitoring (works through sunglasses, in darkness) and night vision.

Lidar (Light Detection and Ranging): A sensor that fires laser pulses and times their return to build a precise 3D map of surroundings. Used on advanced Level 2+/3 vehicles.
Long-Range Radar (LRR): Forward radar reaching 200+ m for adaptive cruise and highway AEB.

Mechanical / Spinning Lidar: Traditional lidar with a rotating assembly providing 360° coverage; mostly used on robotaxi and development vehicles.
Mid-Range Radar (MRR): Radar covering mid distances (~60–100 m), often used at corners for intersection and lane-change support.
Millimeter-Wave Radar (mmWave): Automotive radar operating at very high frequencies (24/77 GHz) with millimeter wavelengths, enabling compact sensors with fine resolution.
Monocular Camera (Mono Camera): A single-lens forward camera that detects lanes, vehicles, signs, and pedestrians using software-based depth estimation.

Radar (Radio Detection and Ranging): A sensor that emits radio waves and measures their reflections to determine the distance, speed, and angle of objects. Works in rain, fog, and darkness.
Radar Absorbing Material: Materials that dampen radar reflections; used in calibration bays to prevent false echoes during radar calibration.
Radar Radome: The cover in front of a radar sensor (often the bumper skin or an emblem) designed to be transparent to radar waves.
Radar-Transparent Bumper / Paint Thickness Effect: Excess paint, body filler, or metallic finishes over a radar zone can attenuate or distort the signal — a key reason refinishing over radar areas must follow OEM limits.

Sensor Blockage / Sensor Blindness: A condition where dirt, snow, ice, or damage prevents a sensor from seeing, usually triggering a dash warning and feature shutdown.
Sensor Bracket / Mounting Bracket: The precision bracket holding a sensor at its designed angle. Bent or aftermarket brackets are a leading cause of failed calibrations.
Sensor Field of View (FOV): The angular area a sensor can see, in degrees. Targets must be placed within the sensor's FOV during calibration.
Short-Range Radar (SRR): Radar covering roughly 0–30 m for parking, blind spot, and cross-traffic functions.
Solid-State Lidar: Lidar with no large spinning parts, making it cheaper and durable enough for production vehicles.
Steering Angle Sensor (SAS): Measures the steering wheel's exact angle; foundational input for ESC and every steering-related ADAS function.
Stereo Camera: Two cameras spaced apart (like human eyes) that calculate true depth from image disparity. Subaru EyeSight is the best-known example.

Telephoto / Narrow FOV Camera: A long-range camera used for high-speed highway functions and distant object detection.
Thermal Camera: A camera that images heat signatures, detecting pedestrians and animals well beyond headlight range.
Time-of-Flight (ToF) Sensor: Any sensor that measures distance by timing how long emitted light takes to bounce back; used for interior monitoring and short-range 3D sensing.
Torque Sensor (Steering): Measures the twisting force the driver applies to the wheel; used by EPS and as a basic hands-on-wheel check.
Trifocal / Tri-Camera Module: A windshield module combining wide, standard, and telephoto cameras to cover close, mid, and far ranges simultaneously.

Ultrasonic Sensor: A small transducer that emits sound pulses and times the echo, measuring obstacles within a few meters. The round "buttons" in bumpers.

Wheel Speed Sensor: Measures individual wheel rotation speed; the core input for ABS, ESC, and indirect TPMS.
Wide-Angle Camera: A short-focal-length camera covering a broad field of view for city AEB, cut-in detection, and surround view.

Yaw Rate Sensor: Measures the vehicle's rotation around its vertical axis — how fast it's actually turning versus how fast the steering says it should be.

Calibration Equipment & Tools

ADAS Calibration Bay: A dedicated shop area meeting OEM environment specs: level floor, controlled lighting, neutral walls, and enough clear space for the longest target distances.
ADAS Coverage Software / Calibration Lookup: Databases that identify which sensors a specific VIN has and which calibrations are required after a given repair.

Battery Maintainer: A power supply that holds system voltage steady during calibration and programming; low voltage is a common cause of failed or interrupted procedures.

Calibration Frame / Calibration Stand: The adjustable structure that holds targets, reflectors, and pattern boards at exact OEM-specified heights and positions in front of the vehicle.
Calibration Mat / Floor Target Mat (AVM): Large printed floor mats placed around the vehicle for surround-view camera calibration.
Calibration Software Update / Tablet Update: Keeping the scan tool's software current; outdated software lacks coverage for new model years and can fail procedures.
Calibration Target / Target Board: The printed pattern board a camera must see during static calibration; each OEM and sensor generation uses different patterns.

Diagnostic Scan Tool / Scan Tablet: The tablet (Autel MaxiSYS, Launch, Topdon, Texa, etc.) that communicates with the vehicle, launches calibrations, and guides target placement.
Digital Distance Measurement / Laser Distance Meter: Handheld laser measuring tools used to set target distances quickly and accurately.
Doppler Simulator / Radar Simulator: A device that returns a simulated moving-object signal to the radar during calibration, letting the radar verify its measurements without a real moving target.

Fixed Calibration Frame: A heavier, shop-installed frame (sometimes floor- or rail-mounted) offering faster setup and repeatability for high-volume calibration bays.
Frame Crossbar / Target Crossbar: The horizontal beam on a calibration frame that holds and positions the target board at the specified height and offset.

Inclinometer / Angle Gauge: Measures angles in degrees; used to verify target tilt, radar plate angle, and floor slope.

J2534 Pass-Thru Device: A standardized interface (SAE J2534) that lets a PC running OEM software communicate with the vehicle for programming and OEM-level calibrations.

Laser Alignment System (Frame Positioning): Lasers mounted on the frame and/or wheels that establish vehicle centerline and square the frame to the vehicle.
Leveling System (Frame Leveling): Built-in bubble levels or electronic leveling on calibration frames ensuring targets sit perfectly plumb and level.

Metal Plate Reflector (Radar Calibration Plate): A flat reflective plate positioned in front of the vehicle for radar aiming on certain platforms.
Mobile Calibration Frame: A lightweight, foldable frame designed to travel between shops for mobile calibration businesses; typically a lower investment than fixed systems.

OEM Diagnostic Software Subscription: Paid access to manufacturer diagnostic platforms (Techstream, XENTRY, ISTA, ODIS, wiTECH) used with a J2534 device for factory-level procedures.
OEM-Specific Target: A target matching one manufacturer's exact pattern and dimensions; required for that brand's calibrations and not interchangeable.

Pattern Projector: Systems that project calibration patterns onto a screen or wall instead of using physical boards, reducing target inventory.
Pattern Target / Checkerboard Target: Generic terms for the high-contrast geometric patterns (checkerboards, dot grids, trapezoids) used in camera calibration.
Plumb Bob: A weighted string used to transfer overhead points (like emblem centers) down to the floor when marking vehicle centerline manually.
Position Statement: A published OEM document stating required procedures (e.g., "scan every collision vehicle," "calibrate after bumper R&R"); the backbone of insurance justification.

Remote Diagnostics / Remote OEM Services: Services where an off-site specialist connects through your interface to perform OEM programming or calibration support.

Scissor Lift / Alignment Rack: Common lift styles used in combined alignment-and-calibration bays.

Tape Measure Method: The manual OEM procedure of measuring target positions with tape measures and plumb bobs instead of laser systems; slower but valid.
Trihedral Reflector / Corner Reflector: A triangular metal corner device that reflects radar energy straight back to its source, giving the radar a precise known reference point during aiming.
Turntables / Slip Plates: Alignment rack components that let the wheels rotate and float freely so suspension settles at true geometry during alignment.
Two-Line Laser / Five-Line Laser: Self-leveling lasers projecting reference lines used to position frames and targets; more lines speed up multi-point measurement.

Universal Target System: An aftermarket frame-and-target ecosystem (Autel, Launch, Topdon, Texa) covering many makes with interchangeable target boards.

Vehicle Communication Interface (VCI): The wireless dongle connecting the scan tablet to the vehicle's diagnostic port.
Vehicle Lift (Alignment-Rated): A lift engineered to hold the vehicle level within alignment tolerances, with turntable and slip plate provisions.

Wheel Alignment System (Camera-Based / 3D Aligner): Modern aligners using cameras and wheel targets to measure angles; some calibration frames integrate alignment checking.
Wheel Clamp / Wheel-Mounted Target: A clamp attaching reference targets or lasers to the wheels, used to find centerline and thrust line.

Technical & Engineering Concepts

Annotation / Training Data: Labeled real-world driving data used to train perception models.
ASIL (Automotive Safety Integrity Level): ISO 26262's risk classification from A (lowest) to D (highest); AEB and steering systems are typically ASIL D.
Automotive Ethernet: High-bandwidth in-vehicle networking used for camera feeds, sensor data, and domain controllers.

Brake-by-Wire: Electronically controlled braking where pedal input is a signal, enabling precise automatic brake interventions.

Calibration Drift: Gradual loss of calibration accuracy over time from vibration, thermal cycling, or minor impacts — why some OEMs recommend periodic verification.
CAN Bus (Controller Area Network): The standard in-vehicle network ECUs use to talk to each other; what your scan tool taps into through the DLC.
CAN FD: "Flexible Data-rate" CAN — a faster CAN version carrying larger messages for data-heavy modern vehicles.
Central Compute / ADAS Domain ECU: The high-performance module running perception and decision software for driver assistance.
Computer Vision: The broader field of extracting understanding from camera images — lane detection, sign reading, object recognition.

Disparity Map: The depth image a stereo camera computes from the difference between its left and right views.
Domain Controller: A powerful central computer consolidating functions that used to live in many small ECUs — e.g., one ADAS domain controller processing all sensors.
Drive-by-Wire: Replacing mechanical control linkages with electronic signals — the enabler for computer-controlled driving functions.

Edge Computing (In-Vehicle): Processing sensor data on the vehicle itself rather than in the cloud, required for split-second safety decisions.
Electronic Control Unit (ECU): Any of the dozens of computers in a vehicle controlling specific functions; ADAS features span multiple ECUs.

Fail-Safe / Fail-Operational Design: Engineering approaches where a failed component either shuts down safely (fail-safe) or backup systems keep the function running (fail-operational).
False Negative / Missed Detection: The system failing to detect a real hazard; the failure mode calibration accuracy directly protects against.
False Positive / False Activation: The system acting when it shouldn't — e.g., phantom braking from a misread overpass shadow.
FlexRay: A high-speed, deterministic network protocol used in some chassis and driver-assistance systems, mainly in German vehicles.
Free Space Detection: Identifying drivable open road area, as opposed to detecting specific obstacles.
Functional Safety: The engineering discipline ensuring electronic systems behave safely even when faults occur.

Gateway Module: The router between vehicle networks; on newer vehicles it also acts as the security gateway controlling diagnostic access.

Headway / Following Distance: The time gap to the vehicle ahead that ACC maintains, usually adjustable in steps (e.g., 1–3 seconds).

ISO 26262: The international functional safety standard for automotive electronics, governing how safety-critical systems are developed and validated.

Kalman Filter: A mathematical technique for smoothing noisy sensor measurements into stable object tracks; the workhorse of radar tracking.

Lane Model / Lane Detection Algorithm: The software representation of lane geometry built from camera images, used by all lane-keeping functions.
Latency: The delay between a sensor seeing something and the vehicle acting on it; measured in milliseconds.
LIN Bus: A low-cost, low-speed network for simple devices like mirrors, seats, and sensors.

Machine Learning Model (In-Vehicle Inference): The trained AI model running in real time on the vehicle's ADAS computer.
Minimal Risk Maneuver: The safe-stop action an automated system performs when the driver doesn't take over — slowing in lane or pulling to the shoulder.

Neural Network / Deep Learning: The AI technique behind modern camera perception, trained on millions of images to recognize objects and lanes.

Object Classification: Determining what a detected object is — car vs. truck vs. pedestrian — so the system responds appropriately.
Object Detection: The perception task of finding objects (vehicles, pedestrians, cyclists) in sensor data.
Object Tracking: Following detected objects across time to estimate their speed, direction, and predicted path.
Operational Design Domain (ODD): The defined conditions (road types, speeds, weather, geography) within which an automated feature is designed to work — e.g., BlueCruise's ODD is mapped divided highways.
Over-the-Air (OTA) Updates: Software updates delivered wirelessly to vehicle modules, including ADAS feature improvements — which can change calibration procedures over a model's life.

Path Planning: The computation of the vehicle's intended trajectory through upcoming road space.
Point Cloud: The 3D dot map produced by lidar, where each point is a measured laser return.

Redundancy: Duplicate sensors, computers, or actuators so a single failure doesn't disable a safety-critical function; required for Level 3+ systems.

Sensor Degradation: Gradual loss of sensor performance from scratches, hazing, contamination, or aging — a reason systems may behave inconsistently even when "working."
Sensor Fusion: Combining data from multiple sensor types (camera + radar + ultrasonic) so the strengths of one cover the weaknesses of another, producing a more reliable picture than any single sensor.
SOTIF (ISO 21448): "Safety of the Intended Functionality" — the standard addressing hazards from performance limitations (e.g., a camera misreading a scene) rather than component failures.
Steer-by-Wire: Steering with no mechanical column connection; the wheel sends electronic commands to a steering actuator.

Time to Collision (TTC): The calculated seconds until impact at current closing speed; the trigger metric for FCW warnings and AEB activation stages.
Trajectory Prediction: Estimating where other road users will be in the next several seconds, central to AEB and lane-change decisions.

Zonal Architecture: A newer vehicle electrical layout organizing computers by physical zone of the car rather than by function, reducing wiring.

Automation Levels, Standards & Industry Bodies

ALKS (Automated Lane Keeping System): The UNECE-regulated category for the first certified Level 3 highway systems.
ANCAP / C-NCAP / JNCAP: The Australasian, Chinese, and Japanese new-car assessment programs.
ASE Certification: Technician certification from the National Institute for Automotive Service Excellence, covering mechanical and collision specialties.

CIC (Collision Industry Conference): The industry forum where repairers, insurers, and OEMs debate standards — including ADAS calibration practices.

Euro NCAP: The European new-car assessment program whose star ratings effectively force ADAS adoption on European vehicles.

FMVSS (Federal Motor Vehicle Safety Standards): The US regulations vehicles must meet to be sold; new ADAS mandates arrive as FMVSS rules.
FMVSS 127: The US rule mandating automatic emergency braking, including pedestrian AEB, on new light vehicles (phasing in toward 2029).

General Safety Regulation (EU GSR): The EU regulation mandating a package of ADAS features (ISA, AEB, driver monitoring, etc.) on all new vehicles.

I-CAR: The collision industry's training organization; its courses and recognition programs set widely accepted technician standards.
I-CAR Gold Class: I-CAR's shop-level training recognition, often required by OEM certification networks and insurers.
IIHS (Insurance Institute for Highway Safety): The insurer-funded organization whose crash tests and ADAS evaluations heavily influence vehicle design.
IIHS Top Safety Pick / Top Safety Pick+: IIHS's annual safety awards; earning them requires strong crash-avoidance (ADAS) performance, not just crashworthiness.
In-House Calibration: Performing calibrations inside your own shop with your own equipment — retaining the revenue and controlling quality and scheduling.

Level 0 — No Driving Automation: The driver does everything; the vehicle may still warn (FCW, LDW) but doesn't sustain control.
Level 1 — Driver Assistance: The system controls either steering or speed, not both — e.g., ACC alone or LKA alone.
Level 2 — Partial Driving Automation: The system controls steering and speed simultaneously, but the driver must supervise constantly. Nearly all current "self-driving" features are Level 2.
Level 2+: An informal industry term for advanced Level 2 systems (hands-free, automatic lane changes) that still require driver supervision.
Level 3 — Conditional Driving Automation: The system fully drives within its ODD and the driver may look away, but must take over when prompted. Mercedes DRIVE PILOT is the first US-certified example.
Level 4 — High Driving Automation: Full self-driving within a limited domain with no human takeover required — today's robotaxis.
Level 5 — Full Driving Automation: Driverless operation everywhere, in all conditions. Does not yet exist.

Mobile Calibration Service: A business model performing calibrations at customer shops using portable frames and equipment.

NCAP (New Car Assessment Program): The general term for government/independent crash-test and safety-rating programs worldwide.
NHTSA: The US federal agency regulating vehicle safety, issuing FMVSS rules and managing recalls.

OEM Certification Program: Manufacturer-run shop networks requiring specific tools, training, and equipment in exchange for certified-repair status.
OEM Repair Procedures: The manufacturer's published step-by-step repair instructions; following them (including calibration steps) is the legal and quality standard for collision repair.

Right to Repair: The movement and legislation ensuring independent shops can access the diagnostic data, software, and procedures needed to repair modern vehicles.

SAE J3016: The SAE standard defining the six levels of driving automation (0–5); the industry's common language for "how automated" a system is.
SCRS (Society of Collision Repair Specialists): A leading US collision repair trade association advocating for repairers on procedure and billing issues.
Sublet Calibration: Sending calibration work to an outside vendor; the cost and cycle-time problem in-house calibration solves.

UNECE Regulations: UN vehicle regulations adopted across Europe and much of the world — e.g., R79 (steering systems), R152 (AEB), R157 (automated lane keeping).

Diagnostics & Repair Workflow

Active Test / Bi-Directional Control: Commanding a component (motor, valve, light) directly from the scan tool to verify operation.
Adaptation / Adaptation Values: Learned values a module stores to fine-tune operation; some must be reset or transferred when parts are replaced.
AutoAuth: The registration/authentication service granting aftermarket scan tools access through Stellantis (FCA) secure gateways.

Battery Voltage Requirements (During Programming): OEMs require stable voltage (typically 12.5–13.5 V via a maintainer) during programming; voltage drops can brick modules.
Blocked Sensor DTC: A code indicating a sensor's view is obstructed by dirt, ice, damage, or paint.
Build Data / Option Codes: Factory records of a vehicle's installed options, used to confirm which ADAS sensors it actually has.

Calibration File (OEM Software File): The specific software/parameter file an OEM server provides for a module during programming.
Camera Misalignment DTC: A fault indicating the forward camera's view doesn't match expected geometry — a calibration-required flag.
Communication Error (U-Codes): DTCs in the U-prefix range indicating modules can't talk to each other — common after collision damage to wiring or networks.

Diagnostic Trouble Code (DTC): A standardized fault code stored by a module when it detects a problem; the starting point of every diagnostic and pre/post-scan.
DLC (Data Link Connector): The 16-pin port (usually under the dash) where the scan tool or VCI plugs in.

Freeze Frame Data: A snapshot of operating conditions captured at the moment a DTC set, useful for diagnosing intermittent faults.

Insurance Reimbursement (Calibration Line Items): Billing calibrations as documented line items backed by OEM position statements and calibration reports.

Labor Time Guide (Calibration Operations): Published labor times for calibration procedures used in estimating systems.
Live Data / PID (Parameter ID): Real-time sensor and module values viewed through the scan tool while the vehicle runs.
Lost Communication DTC: A specific U-code meaning a module has gone silent on the network.

Module Initialization After Replacement: The required setup sequence (coding, initialization, calibration) when any ADAS module or sensor is replaced.
Module Programming / Reflash: Loading new or updated software into a vehicle module, often required when replacing ADAS modules.

Not Calibrated / Calibration Incomplete Status: A module status showing a required calibration hasn't been performed or didn't finish — must be cleared by completing the procedure, not by erasing codes.

OBD-II (On-Board Diagnostics II): The standardized diagnostic system on all US vehicles since 1996, defining the connector, basic codes, and emissions data access.

Quality Control (QC) Checklist: The shop's final verification list confirming all required scans, calibrations, and test drives were completed before delivery.

Radar Misalignment DTC: A fault indicating radar aim is outside tolerance, set by impacts or even bracket distortion.
Repair Order Documentation: Recording all scans, calibrations, and procedures on the RO — the paper trail that supports billing and protects against liability.

Scan Report: The formatted printout of pre/post-scan results attached to the repair file.
SCN Coding: Mercedes-Benz's "Software Calibration Number" online coding process that validates module software against the factory database after programming.
Secure Gateway (SGW): The security module on newer vehicles blocking write-access diagnostics until the tool authenticates through the OEM's authorization system.
Seed-Key Security Access: The challenge-response handshake a tool performs to unlock protected module functions.

Telematics Control Unit (TCU): The vehicle's cellular communication module handling connected services, OTA updates, and eCall.

Variant Coding: Configuring a module to match the specific vehicle's options and market — a replacement radar must be variant-coded before it can be calibrated.
VIN Decoding: Reading the vehicle identification number to determine exact model, engine, and equipment — the first step in identifying required calibrations.

OEM-Specific Systems & Terminology

AcuraWatch: Acura's branding of the Honda Sensing suite.
Audi Adaptive Cruise Assist: Audi's combined ACC and lane centering.
Audi pre sense: Audi's family of predictive safety functions (front, rear, side, city) covering AEB and pre-crash preparation.
Audi Side Assist: Audi's blind spot monitoring.
Audi Traffic Jam Assist: Audi's low-speed combined ACC and steering support.

Blind-Spot View Monitor (BVM): Displays a live camera feed of the blind spot in the instrument cluster when signaling.
BMW Active Cruise Control with Stop&Go: BMW's full-range adaptive cruise.
BMW Driving Assistant / Driving Assistant Professional: BMW's ADAS packages; Professional adds steering assist, lane keeping, and extended ACC.
BMW Highway Assistant: BMW's hands-free Level 2 highway feature with eyes-on automatic lane changes.
BMW ISTA: BMW's factory diagnostic software platform.
BMW KAFAS: BMW's camera-based driver assistance module (the windshield camera system); the unit calibrated after glass work.
BMW Lane Departure Warning with Lane Return: BMW's LDW with corrective steering.
BMW Parking Assistant Plus / Reversing Assistant: BMW's automated parking, including the reversing assistant that retraces the last 50 meters automatically.
BMW Steering and Lane Control Assistant: BMW's lane centering function.

Chevy Safety Assist: Chevrolet's standard bundle: AEB, front pedestrian braking, lane keep assist, following distance indicator, auto high beams, and FCW.

Ford Active Park Assist 2.0: Ford's automated parking that handles steering, throttle, and braking into the space.
Ford BLIS (Blind Spot Information System): Ford's blind spot monitoring, with cross-traffic alert and available trailer coverage.
Ford BlueCruise: Ford's hands-free Level 2 highway system using a driver-facing camera and pre-mapped divided highways.
Ford CCM (Cruise Control Module): Ford's service name for the front radar unit used by ACC and Pre-Collision Assist.
Ford Co-Pilot360: Ford's brand name for its standard ADAS suite: AEB with pedestrian detection, BLIS, lane keeping, rear camera, and auto high beams.
Ford Evasive Steering Assist: Ford's steering support during emergency avoidance maneuvers.
Ford Intelligent Adaptive Cruise Control: Ford's ACC with stop-and-go, speed sign recognition, and lane centering.
Ford IPMA: "Image Processing Module A" — Ford's service name for the windshield-mounted forward camera; the module you calibrate after glass replacement.
Ford Lane-Keeping System: Ford's combined lane departure warning, lane keeping aid, and driver alertness monitoring.
Ford Pre-Collision Assist: Ford's name for forward collision warning with automatic emergency braking.
Ford Pro Trailer Backup Assist: Ford's knob-controlled automated trailer reversing system.
Forward Collision-Avoidance Assist (FCA): Hyundai/Kia's AEB, with junction-turning capability on newer versions.

GDS / KDS: Hyundai (GDS) and Kia (KDS) factory diagnostic systems.
Genesis Highway Driving Assist II: Genesis's advanced highway system with automatic lane changes and machine-learning-based ACC.
GM Adaptive Cruise Control — Camera: GM's camera-only ACC variant on some models, with different calibration requirements than radar ACC.
GM Forward Collision Alert: GM's forward collision warning feature.
GM Front Pedestrian Braking: GM's camera-based pedestrian AEB.
GM Frontview Camera Module: GM's service name for the windshield camera; calibrated with targets or dynamically depending on platform.
GM HD Surround Vision: GM's 360-degree camera system.
GM IntelliBeam: GM's automatic high-beam control.
GM Lane Change Alert with Side Blind Zone Alert: GM's blind spot system that also warns of fast-approaching vehicles in adjacent lanes.
GM Rear Camera Mirror: GM's digital rearview mirror streaming a wide rear camera view.
GM Safety Alert Seat: GM's haptic seat that vibrates left or right to indicate the direction of a hazard.
GM Super Cruise: GM's hands-free Level 2 system using lidar-mapped highways, precision GPS, and a driver attention camera; offers automatic lane changes and trailering support.
GM Ultra Cruise: GM's announced next-generation hands-free program, since folded into Super Cruise development.

Honda ACC with Low-Speed Follow: Honda's stop-and-go adaptive cruise.
Honda CMBS (Collision Mitigation Braking System): Honda's forward collision warning and automatic emergency braking.
Honda LaneWatch: Honda's earlier camera-based blind spot display showing the right-side lane on the center screen.
Honda LKAS (Lane Keeping Assist System): Honda's lane centering assistance.
Honda Multipurpose Camera Aiming: Honda's service term for forward camera calibration, performed with targets and/or a dynamic drive.
Honda RDM (Road Departure Mitigation): Honda's system that brakes and steers to prevent leaving the roadway entirely.
Honda Sensing: Honda's standard ADAS suite: CMBS, ACC, LKAS, RDM, and traffic sign recognition.
Honda Sensing 360: The expanded suite adding corner radars for blind spot, cross-traffic, and intersection coverage.
Honda Sensing Elite: Honda's most advanced system (Japan-market Legend) including Level 3 traffic jam capability.
Hyundai SmartSense: Hyundai's brand name for its ADAS suite.

Infiniti ProACTIVE Package: Infiniti's bundled ADAS option group built on ProPILOT.

Kia Drive Wise: Kia's brand name for the same family of systems.

Lane Following Assist (LFA): Hyundai/Kia's lane centering function.
Lexus Safety System+ (LSS+): Lexus's branding of the Toyota Safety Sense suite.
Lexus Teammate: Lexus's advanced hands-free highway driving system.
Lincoln ActiveGlide: Lincoln's branding of the same hands-free system as BlueCruise.

Mazda i-Activsense: Mazda's brand name for its ADAS suite, including Smart Brake Support and Mazda Radar Cruise Control.
Mercedes Active Blind Spot Assist: Blind spot monitoring with active braking intervention.
Mercedes Active Brake Assist: Mercedes' AEB with pedestrian and cross-traffic capability.
Mercedes Active Parking Assist with PARKTRONIC: Mercedes' ultrasonic-guided automated parking.
Mercedes Active Steering Assist: Mercedes' lane centering function.
Mercedes Attention Assist: Mercedes' drowsiness detection based on steering behavior.
Mercedes DISTRONIC: Mercedes' adaptive cruise control brand name, in use for decades; currently "Active Distance Assist DISTRONIC."
Mercedes DRIVE PILOT: Mercedes' certified Level 3 conditional automation system for traffic-jam highway driving — the first Level 3 system approved for US roads.
Mercedes Driver Assistance Package: Mercedes' bundled ADAS option group including DISTRONIC, steering assist, and blind spot/braking interventions.
Mercedes Multi-Purpose Camera Calibration: Mercedes' service term for windshield camera calibration via XENTRY with OEM targets.
Mercedes PRE-SAFE: Mercedes' pre-crash occupant protection: tightening belts, closing windows, and adjusting seats when a collision is anticipated.
Mercedes PRE-SAFE Sound: Emits a tone before impact that triggers the ear's natural protective reflex against crash noise.
Mercedes XENTRY: The Mercedes factory diagnostic platform required for SCN coding and many OEM calibrations.
Mopar wiTECH: The Stellantis factory diagnostic platform (wiTECH 2.0), accessed through AutoAuth-registered tools.

Navigation-Based Smart Cruise Control (NSCC): ACC that uses map data to slow for curves and speed zones automatically.
Nissan CONSULT: Nissan/Infiniti factory diagnostic software.
Nissan Intelligent Around View Monitor: Nissan's 360-degree camera with moving object detection.
Nissan Intelligent Emergency Braking: Nissan's AEB branding.
Nissan ProPILOT Assist: Nissan's combined ACC and lane centering system.
Nissan ProPILOT Assist 2.0 / 2.1: The hands-free highway versions with driver monitoring on mapped roads.
Nissan Safety Shield 360: Nissan's standard six-feature safety bundle: AEB with pedestrian detection, rear AEB, BSM, RCTA, LDW, and auto high beams.

ODIS: The VW Group (VW/Audi/Porsche/Skoda/SEAT) factory diagnostic software platform.

Porsche InnoDrive: Porsche's predictive ACC using navigation data to optimize speed through curves and grades.

Remote Smart Parking Assist (RSPA): Hyundai/Kia's key-fob remote parking feature.

Stellantis Active Driving Assist: The combined ACC and lane centering system on Jeep, Ram, Chrysler, and Dodge vehicles; hands-free on select models.
Subaru DriverFocus: Subaru's infrared driver monitoring system with facial recognition.
Subaru EyeSight: Subaru's stereo-camera-based ADAS suite handling AEB, ACC, lane keeping, and lead vehicle alerts — distinctive for using two cameras instead of camera+radar on core functions.
Subaru EyeSight X: The advanced version adding hands-free traffic jam capability and GPS-based curve control (select markets).
Subaru Reverse Automatic Braking: Subaru's rear AEB using ultrasonic sensors.
Subaru Stereo Camera Calibration: The EyeSight calibration procedure; the dual-camera design has strict target placement and environment requirements.
Surround View Monitor (SVM): Hyundai/Kia's 360-degree camera system.

Tesla Autopilot: Tesla's standard Level 2 system combining traffic-aware cruise control and Autosteer lane centering.
Tesla Enhanced Autopilot: Adds automatic lane changes, Navigate on Autopilot, Smart Summon, and automated parking.
Tesla Full Self-Driving (Supervised): Tesla's most advanced driver-supervised system handling city streets, turns, and intersections; still Level 2.
Tesla Vision: Tesla's camera-only sensing approach after removing radar and ultrasonic sensors from its vehicles.
Toyota Advanced Park: Toyota's automated parking system, including remote operation on some models.
Toyota Dynamic Radar Cruise Control (DRCC): Toyota's adaptive cruise control, full-speed-range on most current models.
Toyota Lane Departure Alert (LDA): Toyota's lane departure warning, with steering assist on equipped models.
Toyota Lane Tracing Assist (LTA): Toyota's lane centering function that works with DRCC engaged.
Toyota Millimeter Wave Radar Sensor Adjustment: Toyota's service term for front radar aiming, using a reflector at specified coordinates.
Toyota Panoramic View Monitor: Toyota's 360-degree camera system.
Toyota Pre-Collision System (PCS): Toyota's forward collision warning and AEB with pedestrian/cyclist detection.
Toyota Proactive Driving Assist (PDA): TSS 3.0 feature providing gentle braking/steering support around pedestrians, cyclists, and curves at city speeds.
Toyota Road Sign Assist (RSA): Toyota's traffic sign recognition.
Toyota Safety Sense (TSS): Toyota's standard ADAS suite; generation matters for calibration (TSS-P, 2.0, 2.5, 3.0 use different sensors and procedures).
Toyota Safety Sense 2.0 / 2.5 / 3.0: Successive TSS generations adding cyclist detection, intersection support, and expanded camera/radar capability.
Toyota Techstream: Toyota/Lexus factory diagnostic software, used with a J2534 interface for OEM-level diagnostics and calibrations.

Volvo City Safety: Volvo's umbrella name for its AEB system with vehicle, pedestrian, cyclist, and large-animal detection.
Volvo IntelliSafe: Volvo's broader branding for its safety and driver assistance technologies.
Volvo Pilot Assist: Volvo's combined ACC and lane centering.
VW Emergency Assist: Detects an unresponsive driver, then slows and stops the vehicle in its lane with hazards on.
VW Front Assist: VW's forward collision warning and AEB.
VW IQ.DRIVE: Volkswagen's umbrella brand for its driver assistance suite.
VW Travel Assist: VW's combined ACC and lane centering for highway driving.