GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the lumbar support actuator knob.
  2. Use a small screwdriver in order to pry off the knob. Discard the knob.

Installation Procedure

  1. Install a new lumbar support actuator knob.
  2. Secure the knob by grasping the knob and pushing inward.