GM Service Manual Online
For 1990-2009 cars only

    Object Number: 421398  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 inflatable restraint steering wheel module. Refer to Disabling the SIR System in SIR.
  2. Remove the upper and lower trim covers. Refer to Steering Column Trim Covers - Disassemble - Off Vehicle .
  3. Disconnect the connectors from the windshield wiper and washer switch assembly (1).
  4. Remove the windshield wiper and washer switch assembly (1) in the following way:
  5. 4.1. Press on the locking tabs of the windshield wiper and washer switch assembly (1).
    4.2. Pull the windshield wiper and washer switch assembly (1) out of the signal switch housing assembly.