GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 2WD 🢒 Body and Accessories 🢒 Seats 🢒 Front Seat Lumbar Support Replacement

Removal Procedure
  1. Remove the bucket seat from the vehicle. Refer to Bucket Seat Replacement .
  2. Remove the seat back cover and pad from the seat back frame. Refer to Seat Back Cover and Pad Replacement .

    3. Object Number: 506778 Size: SH
  3. Disconnect the lumbar plate cable (1) from the lumbar plate.

    4. Object Number: 506791 Size: SH
  4. Pull rearward on the lumbar plate corners to release it from the seat back frame.

    5. Object Number: 506820 Size: SH
  5. Remove the lumbar plate from the seat back frame.

Installation Procedure

    Object Number: 506820 Size: SH
  1. Install the lumbar plate to the seat back frame.

    2. Object Number: 506791 Size: SH
  2. Snap the corners of the lumbar plate to the seat back frame.

    3. Object Number: 506778 Size: SH
  3. Install the lumbar plate cable (1) to the lumbar plate.
  4. Install the seat back cover and pad to the seat back frame. Refer to Seat Back Cover and Pad Replacement .
  5. Install the bucket seat in the vehicle. Refer to Bucket Seat Replacement .