GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the left split bench or bucket seat. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement .
  2. Access the sensor through service slit provided in the carpet.

  3. Object Number: 1277053  Size: SH
  4. Remove the electrical connector from the sensor.

  5. Object Number: 1277052  Size: SH
  6. Remove the 2 nuts retaining the sensor to the floor panel.
  7. Remove the sensor from the vehicle.

Installation Procedure


    Object Number: 1277052  Size: SH
  1. Install the sensor to the vehicle.
  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.

  3. Install the 2 retaining nuts.
  4. Tighten
    Tighten the screws to 9 N·m (80 lb in).


    Object Number: 1277053  Size: SH
  5. Install the electrical connector to the sensor.
  6. Install the left split bench or bucket seat. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement .