GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 2003 🢒 Unit Repair 🢒 Preface 🢒 Cautions and Notices 🢒 Turn Signal Multifunction Switch Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the knee bolster. Refer to Driver Knee Bolster Replacement .
  3. Remove the knee bolster bracket. Refer to Driver Knee Bolster Bracket Replacement .

    4. Object Number: 401496 Size: SH
  4. Verify that the turn signal lever on the multifunction switch is in the neutral position or the off position.
  5. Loosen the steering column bracket nuts.
  6. Remove the steering column upper and lower trim covers. Refer to Steering Column Trim Covers Replacement .
  7. Disconnect the steering column bulkhead electrical connector from the vehicle wire harness.

    8. Object Number: 245826 Size: SH
  8. Remove the wire harness straps from the steering column wire harness.

    9. Object Number: 306234 Size: SH
  9. Disconnect the gray and the black connectors (2) of the switch from the column bulkhead electrical connector (1).
  10. Remove the retaining screws from the multifunction, turn signal, and hazard switch.
  11. Remove the multifunction switch from the steering column.

Installation Procedure

    Object Number: 245826 Size: SH
  1. Install the multifunction, turn signal, and hazard switch to the steering column.

    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 retaining screws to the multifunction switch .

    3. Tighten
    Tighten the screws to 6 N·m (53 lb in).


    Object Number: 306234 Size: SH
  3. Install the multifunction switch electrical connectors (2) to the steering column bulkhead electrical connector (1).

    4. Object Number: 401496 Size: SH
  4. Install the steering column bulkhead electrical connector to the vehicle wire harness.
  5. Install the wire straps on the steering column wire harness.
  6. Install the steering column upper and lower trim covers. Refer to Steering Column Trim Covers Replacement .
  7. Tighten the steering column bracket nuts.

    8. Tighten
    Tighten the nuts to 30 N·m (22 lb ft).

  8. Install the knee bolster bracket. Refer to Driver Knee Bolster Bracket Replacement .
  9. Install the knee bolster. Refer to Driver Knee Bolster Replacement .
  10. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.