GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Astro - 4WD 🢒 Body and Accessories 🢒 Seats 🢒 Lumbar Support Knob Replacement

Removal Procedure

    Object Number: 300312 Size: SH
  1. Rotate the lumbar support knob while pushing inward on the trim cover material around the knob. This will cause the clip retaining the knob to thread through to the outside of the trim cover.
  2. Remove the clip from the knob.
  3. Remove the lumbar support knob from the seat.

Installation Procedure

    Object Number: 300312 Size: SH
  1. Install the lumbar support knob to the seat.
  2. Install the lumbar support knob retaining clip.
  3. Rotate the knob in order to thread the clip from the outside of the trim cover to the inside of the trim cover.