GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2002 🢒 DeVille 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Inflatable Restraint Side Impact Sensor Replacement

Removal Procedure

Caution: In order to prevent SIR deployment, personal injury, or unnecessary SIR system repairs, do not strike the door or the door pillar in the area of the side impact sensor (SIS). Turn OFF the ignition and remove the key when performing service in the area of the SIS.


    Object Number: 457510 Size: SH
  1. Disable the SIR system. Refer to Disabling the SIR System .
  2. Removal of passenger or driver inflatable restraint side impact sensor (SIS) use the same procedure.
  3. Move the seat to the full forward position.
  4. Remove the center pillar trim panel. Refer to Center Pillar Garnish Molding Replacement in Interior Trim.
  5. Remove the Connector Position Assurance (CPA) (5) from the inflatable restraint side impact sensor (SIS) harness connector (4).
  6. Disconnect the SIS harness connector (4) from the SIS (2).
  7. Remove the SIS mounting fasteners (1).
  8. Remove the SIS (2) from the center pillar (3).

Installation Procedure

CAUTION: Be careful when you handle an inflatable restraint side impact sensor (SIS) or inflatable restraint side impact sensing module (SISM). Do not strike or jolt the SIS or SISM. Before applying power to the SIS or SISM:

   • Remove any dirt, grease, etc. from the mounting surface
   • Position the SIS or SISM on the mounting surface
   • Tighten all of the SIS or SISM fasteners to the specified torque value
Failure to follow the correct procedure could cause air bag deployment, personal injury, or unnecessary air bag system repairs.


    Object Number: 457510 Size: SH
  1. Installation of passenger or driver inflatable restraint side impact sensor (SIS) use the same procedure.
  2. Install the SIS (2) to the center pillar (3).

    3. 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 SIS mounting fasteners (1).

    4. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).

  4. Install the SIS harness connector (4) to the SIS (2).
  5. Install the Connector Position Assurance (CPA) (5) to the SIS harness connector (4).
  6. Install the center pillar trim. Refer to Center Pillar Garnish Molding Replacement in Interior Trim.
  7. Move seat to the original position.
  8. Enable the SIR system. Refer to Enabling the SIR System .