GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 LaCrosse 🢒 Restraints 🢒 SIR 🢒 Inflatable Restraint Side Impact Sensor Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 863414 Size: SH

    Caution: Do not strike or jolt the inflatable restraint side impact sensor (SIS). Before applying power to the SIS make sure that it is securely fastened. Failure to observe the correct installation procedures could cause SIR deployment, personal injury, or unnecessary SIR system repairs.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling or to SIR Disabling and Enabling .
  2. Place the window in the raised position to access the sensor.
  3. Remove the door trim panel. Refer to Front Side Door Trim Panel Replacement in Doors.
  4. Remove enough of the water deflector to access the side impact sensor (1).
  5. Loosen the bolts (2) on the inflatable restraint side impact sensor (1).
  6. Remove the inflatable restraint side impact sensor (1) out from the door (4).

    7. Object Number: 834331 Size: SH
  7. Remove the connector position assurance (CPA) (3) from the side impact sensor connector (4).
  8. Disconnect the side impact sensor connector (4).
  9. Remove the sensor from the vehicle.

Installation Procedure
  1. Remove any dirt, grease, or other impurities from the mounting surface.
  2. Position the inflatable restraint side impact sensor by the door.

    3. Object Number: 834331 Size: SH
  3. Connect the side impact sensor connector (4).
  4. Install the CPA (3) to the side impact sensor connector.
  5. Install the side impact sensor (1) to the door (4).

    6. Object Number: 863414 Size: SH

    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.

  6. Tightening the side impact sensor bolts (2).

    7. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  7. Install the water deflector to the door.
  8. Enable the SIR system. Refer to SIR Disabling and Enabling or to SIR Disabling and Enabling .