GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2007 🢒 LaCrosse 🢒 Body Systems 🢒 Wipers and Washers 🢒 Windshield Wiper and Washer Switch Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 301912 Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling .
  2. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  3. Remove the steering column wiring harness tie straps (1,2).

    4. Object Number: 312291 Size: SH
  4. Disconnect the module electrical connectors (2).

    5. Object Number: 301919 Size: SH

    Important: Note the direction that the steering column wiring harness is routed for re-installation.

  5. Open the wire harness shield (1) at the lower steering column and remove the wire harness (2).

    6. Object Number: 293230 Size: SH
  6. Disconnect the electrical connectors (1,3) from the windshield wiper and washer switch.

    7. Object Number: 428823 Size: SH
  7. Depress the locking tab (2) on the windshield wiper and washer switch (1) and remove the switch from the steering column.

Installation Procedure

    Object Number: 428823 Size: SH
  1. Install the windshield wiper and washer switch (1) to the steering column.

    2. Object Number: 312396 Size: SH
  2. Connect the electrical connectors (1,3) on the windshield wiper and washer switch.

    3. Object Number: 301919 Size: SH
  3. Install the wire harness (2) to the wire harness shield (1) on the lower steering column.

    4. Object Number: 301912 Size: SH
  4. Route and connect the electrical connector from the windshield wiper and washer switch.
  5. Install the wiring harness tie straps (1,2).
  6. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  7. Enable the SIR system. Refer to SIR Disabling and Enabling .