GM Service Manual Online
For 1990-2009 cars only

    Object Number: 664256  Size: SH
  1. Install the turn signal and multifunction switch assembly.
  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.

    Important: The electrical contact on the turn signal and multifunction switch assembly must rest on the turn signal cancel cam assembly.

  3. Screw the 2 pan head tapping screws (1) and (3) into the turn signal and multifunction switch assembly (2).
  4. Tighten

    • Tighten the top pan head tapping screw (1) to 3 N·m (30 lb in).
    • Tighten the side pan head tapping screw (3) to 7 N·m (62 lb in).

    Object Number: 419658  Size: SH
  5. Reconnect the connectors of the turn signal and multifunction switch assembly.
  6. Install the wire harness straps.
  7. Install the wire harness assembly into the wire restraint clip (1).
  8. Install the upper and lower trim covers. Refer to Steering Column Trim Covers - Assemble - Off Vehicle .