GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2003 🢒 Montana - 4WD 🢒 Body and Accessories 🢒 Seats 🢒 Driver or Passenger Seat Back Cushion Heater Replacement

Removal Procedure
  1. Remove the front seat. Refer to Bucket Seat Replacement .
  2. Remove the map pocket net. Refer to Front Seat Map Pocket Net Replacement .
  3. Remove the finish covers. Refer to Front Seat Adjuster Track Finish Cover Replacement .
  4. Remove the recliner handle and cap. Driver Seat and Passenger Seat Recliner Handle Replacement .
  5. Remove the seat back recliner covers starting at the rear of the cover.

    6. Object Number: 317158 Size: SH
  6. Remove the J retainer (1) from the bottom edge of the seat back cover.
  7. Remove the recliner bolts.
  8. Separate the seat back from the seat cushion.
  9. Remove the seat back cover from the seat back cushion while separating the hook and loop retainers.

    10. Object Number: 317161 Size: SH
  10. Remove the seat back cover retainer rings (2).
  11. Pull up on the seat back cover (1).
  12. Remove the heater element from the seat back pad.

Installation Procedure
  1. Install the heater element.

    2. Object Number: 317161 Size: SH
  2. Push down on the seat back cover (1).
  3. Install the retainer rings (2) to the seat back cover.
  4. Secure the seat back cover to the foam pad with the hook and loop retainers.
  5. Install the seat back to the seat cushion.

    6. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the front seat recliner bolts.

    7. Tighten
    Tighten the bolts to 48 N·m (35 lb ft).


    Object Number: 317158 Size: SH
  7. Install the J retainer (1) to the bottom edge of the seat back cover.
  8. Secure the seat back recliner covers in place.
  9. Install the recliner handle and cap. Refer to Driver Seat and Passenger Seat Recliner Handle Replacement .
  10. Install the finish covers. Refer to Front Seat Adjuster Track Finish Cover Replacement .
  11. Install the map pocket net. Refer to Front Seat Map Pocket Net Replacement .
  12. Install the front seat. Refer to Bucket Seat Replacement .