GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Inflatable Restraint Side Impact Sensor Replacement

Removal Procedure

    Warning: Refer to SIR Warning in the Preface section.


    Object Number: 863414 Size: SH

    Warning: When carrying an undeployed inflatable restraint seat belt pretensioner:

       • Do not carry the seat belt pretensioner by the wires or connector.
       • Carry the seat belt pretensioner by the piston tube, keeping hands and fingers away from the cable.
       • Make sure the open end of the seat belt pretensioner piston tube points away from you and other people.
       • Do not cover the seat belt pretensioner piston tube opening with your hand.
    Failure to observe these guidelines may result in personal injury.

  1. Disable the SIR system. Refer 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.
  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. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 863414 Size: SH
  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.