GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Canyon Pickup - 2WD 🢒 Seats 🢒 Power Seats 🢒 Lumbar Switch Replacement

Removal Procedure
  1. Remove the seat cushion outer trim panel. Refer to Seat Cushion Outer Trim Panel Replacement .
  2. Remove the switch bezel from the seat assembly. Refer to Driver Seat and Passenger Seat Adjuster Switch Bezel Replacement .
  3. Remove the buttons from the switch (3).

    4. Object Number: 1333646 Size: SH
  4. Release the tabs (4) that retain the seat switch (3) to the seat bezel.

    5. Object Number: 1333639 Size: SH
  5. Disconnect the lumbar switch harness (1) from the seat harness.
  6. Remove the lumbar switch from the seat bezel.

Installation Procedure

    Object Number: 1333639 Size: SH
  1. Connect the lumbar switch harness (1) to the seat harness.

    2. Object Number: 1333646 Size: SH
  2. Install the lumbar switch (3) to the seat bezel. Verify that the retaining tabs (4) are fully seated.
  3. Install the buttons on the switch.
  4. Install the switch bezel assembly to the seat assembly. Refer to Driver Seat and Passenger Seat Adjuster Switch Bezel Replacement .
  5. Install the seat cushion outer trim panel. Refer to Seat Cushion Outer Trim Panel Replacement .