GM Service Manual Online
For 1990-2009 cars only

Begin in the driver seat.

  1. Turn the ignition on and verify proper operation of the seat belt reminder lamp, with the belt buckled and unbuckled, refer to Seat Belt Component Description and Definitions .
  2. Inspect the shoulder belt guide. Check that the guide swivels freely, that the seat belt webbing is seated flat in the guide slot, and that the webbing does not bind.
  3. Check that the seat belt buckle faces properly and is accessible.
  4. Check that the seat belt retractor units are securely attached.
  5. Check the seat belt anchor bolts to verify that they are secure.
  6. Fully extend the seat belt webbing and check that there are no twists or tears in the webbing.
  7. Allow the seat belt webbing to retract and check that the webbing returns freely and completely back into the retractor.
  8. Snap the seat belt latch plate into the buckle.
  9. Tug sharply on the seat belt latch plate and buckle to check that it remains locked.
  10. Push the button on the buckle. The seat belt latch plate must release from the buckle easily and the button must return to its original position.
  11. Repeat the previous nine steps from the front passenger seat.
  12. Check that the center belts are accessible and that there are no twists or tears in the webbing.
  13. Snap the seat belt latch plate into the buckle.
  14. Tug sharply on the seat belt latch plate and buckle to check that it remains locked.
  15. Push the button on the buckle. The seat belt latch plate must release from the buckle easily and the button must return to its original position.
  16. Repeat the procedure from the rear seats. To remove the seats or the seat cushions, refer to Seats and Carpet.