GM Service Manual Online
For 1990-2009 cars only

Caution: Perform this test in an area clear of other vehicles or obstructions. Do not conduct this test on the open road. A large, empty parking lot is suitable. Failure to observe this precaution may result in damage to the vehicle and possible personal injury.

Caution: To help avoid personal injury from unrepaired crash damage to a restraint system, perform the seat belt check for each seat belt system. Replace the seat belt system if there is any doubt about the condition of system components.

    • Inspect all seat belt anchor bolts to verify that they are secure.
    • Inspect the seat belt buckle, making sure it locks and unlocks easily.
    • After buckling the seat belt, tug sharply on the belt, checking that the buckle remains locked.
    • Fully extend the seat belt to make sure there are no twists or tears in it.
    • Allow the seat belt to fully retract to make sure it does so easily.
    • Fasten the seat belt.
    • Drive the vehicle at 16 km/h (10 mph) and apply the brakes firmly.
    • Verify that the seat belt locks and does not allow your body to move forward.
    • If the belt does not lock during the running test, remove the retractor and perform the static test.