GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1943552  Size: SH
  1. Turn the lumbar support adjuster deflector ring (1) clockwise until it is released from the adjuster shaft.
  2. Remove the deflector ring (1) and knob assembly (2) by firmly pulling forward.

Installation Procedure

    Notice: Refer to General Repair Instructions in the Preface section.


    Object Number: 1943618  Size: SH
  1. Install the deflector ring (1) onto the adjustment shaft.

  2. Object Number: 1943551  Size: SH
  3. Twist the lumbar support deflector ring (1) anti-clockwise until it locks into place on the adjustment shaft, listen for an audible click to confirm fitting.
  4. Install the lumbar support knob assembly (2) by firmly pushing it onto the adjuster shaft.
  5. Test lumbar support assembly for correct operation.