GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Envoy - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle

Removal Procedure

    Object Number: 401496 Size: SH

    Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

       • Air bag deployment
       • Personal injury
       • Unnecessary SIR system repairs
    In order to avoid the above conditions, observe the following guidelines:
       • Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.
       • If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

  1. Disable the SIR system. Refer to Disabling the SIR System in SIR.
  2. Remove the knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gages and Console.
  3. Ensure the turn signal lever on the multifunction switch is in the neutral position or the off position.
  4. Remove the knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gages and Console.
  5. Loosen the steering column bracket nuts.
  6. Remove the steering column upper and lower trim covers. Refer to Steering Column Trim Covers Replacement - On Vehicle .
  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 electical connector (1).
  10. Remove the multifunction, turn signal, and hazard switch retaining screws.
  11. Remove the multifunction, turn signal, and hazard 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 multifunction, turn signal, and hazard switch retaining screws.

    3. Tighten
    Tighten the multifunction, turn signal, and hazard switch retaining screws to 6 N·m (53 lb in).


    Object Number: 306234 Size: SH
  3. Install the multifuntion, turn signal, and hazard 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 - On Vehicle .
  7. Tighten the steering column bracket nuts.

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

  8. Install the knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gages and Console.
  9. Enable the SIR system. Refer to Enabling the SIR System in SIR.