GM Service Manual Online
For 1990-2009 cars only

    Object Number: 664269  Size: SH

    Important: The switch mounting bracket must be pressed firmly against the steering column tilt head in order for the screws from the turn signal and multifuntion switch assembly screws to line up.

  1. Slide the turn signal switch housing onto the steering column shaft assembly.
  2. Caution: Improper routing of the wire harness assembly may damage the inflatable restraint steering wheel module coil. This may result in a malfunction of the coil, which may cause personal injury.

  3. Install the windshield wiper and washer switch, if needed.
  4. Install the turn signal and multifunction switch assembly only. Refer to Turn Signal and Multifunction Switch Assembly - Assemble - Off Vehicle .
  5. Install the steering column tilt head components. Refer to Steering Column Tilt Head Housing - Assemble - Off Vehicle .
  6. Enable the inflatable restraint steering wheel module. Refer to Enabling the SIR System in SIR.