GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Seville 🢒 Restraints 🢒 SIR 🢒 Seat Belt Buckle Pretensioner Replacement - Left Side

Removal Procedure

Caution: When you are carrying an undeployed inflator module:

   • Do not carry the inflator module by the wires or connector on the inflator module
   • Make sure the bag opening points away from you
When you are storing an undeployed inflator module, make sure the bag opening points away from the surface on which the inflator module rests. When you are storing a steering column, do not rest the column with the bag opening facing down and the column vertical. Provide free space for the air bag to expand in case of an accidental deployment. Otherwise, personal injury may result.

CAUTION: When you are carrying an undeployed seat belt pretensioner:

   • Do not carry the seat belt pretensioner by the wires or connector on the pretensioner.
   • Do not touch the seat belt pretensioner in the area of the cable (1).
   • Do not cover the tube opening with your hand.
   • Keep the open end of the tube pointed away from you. Do not point the open end of the tube at another person.
   • When the pretensioner deploys the cable retracts. This shortens the pretensioner between the buckle and the mounting bolt. Grasp the pretensioner by the piston tube (2).
Disregarding these precautions may result in personal injury or unnecessary SIR system repairs.


    Object Number: 288275 Size: SH
  1. Disable the SIR. Refer to Disabling the SIR System .
  2. Remove the driver seat. Refer to Front Seat Replacement - Bucket in Seats.
  3. Remove the pretensioner trim cover by pulling up on the front of the cover and then pulling forward.
  4. Remove the CPA from the side air bag/pretensioner yellow 6-way connector located under the seat.
  5. Disconnect the side air bag/pretensioner yellow 6-way connector located under the seat.
  6. Disconnect the pretensioner 2-way electrical connector from the 4-way side air bag connector.
  7. Disconnect the 2-way seat belt switch electrical connector.
  8. Remove the nut that fastens the pretensioner to the seat.

Installation Procedure

    Object Number: 288275 Size: SH
  1. Install the pretensioner to the stud on the seat. Notice that the pretensioner has a tab that fits into the seat in order to insure that the pretensioner is in the proper position.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the nut to that fastens the pretensioner to the seat.

    3. Tighten
    Tighten the nut to 41 N·m (30 lb ft).

  3. Carefully route the pretensioner pigtail harness under the seat.
  4. Connect the pretensioner 2-way electrical connector to the 4-way side air bag connector.
  5. Connect the side air bag/pretensioner yellow 6-way connector located under the seat.
  6. Install the CPA to the side air bag/pretensioner yellow 6-way connector located under the seat.
  7. Connect the 2-way seat belt switch electrical connector.
  8. Install the pretensioner trim cover by engaging the rear, then pushing down on the front.
  9. Install the driver seat. Refer to Front Seat Replacement - Bucket in Seats.
  10. Enable the SIR. Refer to Enabling the SIR System .