GM Service Manual Online
For 1990-2009 cars only

Important: If the vehicle has been in a collision, refer to Repairs and Inspections Required After a Collision for additional information.

Turn the ignition switch to the ON position. Verify proper operation of the seat belt reminder lamp with the belt buckled and with the belt unbuckled. Refer to Seat Belt System Description and Operation .

Perform the following inspection from the driver seat:

  1. Inspect the shoulder belt guide in order to ensure that the following conditions are met:
  2. • The shoulder belt guide moves freely.
    • The seat belt webbing is seated flatly in the guide slot.
    • The seat belt webbing does not bind.
  3. Verify that the seat belt buckle faces inboard and is accessible.
  4. Verify that the seat belt retractor units are securely attached.
  5. Verify that the seat belt anchor bolts are secure.
  6. Fully extend the seat belt webbing. Verify that the seat belt webbing does not have any twists or tears.
  7. Allow the seat belt webbing to retract. Verify that the webbing returns freely and completely back in the retractor. If the seat belt webbing will not retract, refer to Seat Belt Does Not Retract .
  8. Snap the seat belt latch plate into the buckle.
  9. Sharply tug on the seat belt latch plate and the buckle. Verify that the seat belt latch plate and the buckle remain locked when tugged.
  10. Push the button on the buckle:
  11. • Verify that the seat belt latch plate releases easily from the buckle.
    •  Verify that the button returns to its original position.
  12. Some seat belts have an Energy Management Loop, an overlap of the seat belt webbing that is stitched together around a caution label. If any separated stitching exists, revealing the caution label, replace the seat belt.

Repeat the inspection procedures from the front passenger seat.

Perform the following steps in order to inspect the center seat belts:

  1. Verify that the center seat belts are accessible.
  2. Verify that the center seat belts have no twists or tears in the webbing.
  3. Snap the center seat belt latch plate into the buckle.
  4. Sharply tug on the seat belt latch plate and the buckle. Verify that the seat belt latch plate and the buckle remain locked when tugged.
  5. Push the button on the buckle:
  6. • Verify that the seat belt latch plate releases easily from the buckle.
    •  Verify that the button returns to its original position.

Repeat the inspection procedures from the rear seat.

Repeat the center seat belt inspection procedures from the rear seat.

Emergency Locking Retractors

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.

  1. Fasten the seat belts. Ask an assistant to buckle up when the retractor being tested is other than the driver seat belt.
  2. Accelerate the vehicle slowly to 16 km/h (10 mph) and apply the brakes firmly.
  3. Verify that the seat belt locks when braking firmly.
  4. If the belt does not lock, proceed with the following steps:
  5. 4.1. Remove the seat belt retractor assembly.
    4.2. Tilt the seat belt retractor slowly.

    Object Number: 157277  Size: SH
    4.3. Ensure that the seat belt webbing can be pulled from the retractor at an inclination of 15 degrees or less and cannot be pulled from the retractor at an inclination of 45 degrees or more.
    4.4. If the seat belt retractor does not operate as described, replace the retractor assembly. Refer to Front Seat Belt Retractor Replacement or Rear Seat Belt Retractor Replacement .