GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Sonoma Pickup - 2WD 🢒 Body and Accessories 🢒 Seats 🢒 Lumbar Switch Replacement

Removal Procedure
  1. Remove the seat from the vehicle. Refer to Bucket Seat Replacement or Bench Seat Replacement .

    2. Object Number: 544184 Size: SH
  2. Remove the 3 screws securing the trim panel to the seat.

    3. Object Number: 609140 Size: SH
  3. Disconnect the electrical connector from the switch.

    4. Object Number: 609135 Size: SH
  4. Remove the switch from the trim panel by snapping the switch out of the plastic retaining tabs.
  5. Remove the switch assembly.

Installation Procedure

    Object Number: 609135 Size: SH
  1. Install the switch assembly to the trim panel by snapping the switch into the plastic retaining clips.

    2. Object Number: 609140 Size: SH
  2. Install the electrical connector to the switch.

    3. Object Number: 544184 Size: SH
  3. Install the trim panel to the seat with 3 screws.
  4. Install the seat to the vehicle. Refer to Bucket Seat Replacement or Bench Seat Replacement .