See also:

PCS (Pre-Collision System)
When the radar sensor detects an unavoidable frontal collision, safety systems such as the brakes and seat belts are automatically engaged in an attempt to lessen damage. Pre-collision seat belts ...

Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system. If the malfunction indic ...

SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of severe impacts that may cause significant injury to the occupants. They work together with the seat belts to help reduce the ...