Collision Repair Glossary
Understanding collision repair terms can be confusing. This glossary explains common words and systems you may hear after an accident — in clear, simple language.
ADAS (Advanced Driver Assistance Systems)
Safety features that help drivers avoid accidents, such as lane keep assist, adaptive cruise control, blind spot monitoring, and automatic emergency braking.
ADAS Calibration
The process of resetting and aligning cameras, sensors, and radar after repairs so safety systems function correctly.
Aftermarket Parts
Replacement parts made by companies other than the vehicle manufacturer. They may fit differently and can affect safety system performance.
Alignment
Adjusting the angles of the wheels so the vehicle drives straight and handles properly.
Blend Panel
A nearby panel that is partially repainted to ensure color consistency after repairs.
Crash Sensor
A sensor that detects impact severity and helps determine airbag deployment.
Crush Zone
Areas of the vehicle designed to absorb impact energy during a collision.
Diagnostic Scan
A computerized scan that checks for error codes and hidden issues within vehicle systems.
Frame Damage
Damage to the vehicle’s structural foundation that can affect safety and handling.
OEM (Original Equipment Manufacturer) Parts
Parts made by the vehicle’s manufacturer, designed to match factory fit, safety, and performance.
Post-Repair Scan
A scan performed after repairs to confirm that all systems are operating correctly.
Pre-Repair Scan
A diagnostic scan done before repairs to identify existing issues caused by the collision.
Radar Sensor
A sensor that measures distance and speed of surrounding vehicles, used for adaptive cruise control and collision avoidance.
Structural Damage
Damage to load-bearing areas of the vehicle, such as the frame or unibody.
Total Loss
When repair costs exceed the vehicle’s value, leading the insurance company to declare it a total loss.
Unibody
A vehicle construction method where the frame and body are built as a single structure.
Warning Light
A dashboard indicator that alerts the driver to system faults — though some safety systems may fail without triggering a warning.