GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 669311  Size: SH
  1. Disable the SIR. Refer to SIR Disabling and Enabling or SIR Disabling and Enabling in SIR.
  2. Adjust the front seat assembly up and forward in order to access the fasteners (1) at the rear of the front seat cushion assembly.
  3. Remove the front seat cushion assembly fasteners (1), at the rear of the seat cushion.

  4. Object Number: 669309  Size: SH
  5. Adjust the front seat assembly to the rear of the vehicle.
  6. Angle the front seat cushion (1) up, in order to access the front seat cushion assembly fasteners (2).
  7. Remove the front seat cushion assembly fasteners (2).
  8. Lift the front seat cushion assembly (1) away from the seat riser.
  9. Important: The heated seat cushion cover connectors and a several wire hold down clips will need to be removed in order to position the seat cushion against the seat back.

  10. Position the seat cushion assembly (1) against the seat back, in order to access the heated seat module rivets and the electrical connectors.

  11. Object Number: 334294  Size: SH
  12. Disconnect the heated seat module electrical connector.

  13. Object Number: 669304  Size: SH

    Caution: Eye protection must be worn when drilling rivets to reduce the chance of personal injury.

    Important: Cover the seat motors and cables in order to avoid metal shavings in the mechanism.

  14. Drill out the rivets (2) retaining the heated seat module (1) to the seat cushion frame.
  15. Remove the heated seat module (1).

Installation Procedure


    Object Number: 669304  Size: SH
  1. Install the heated seat module (1) to the seat cushion frame.
  2. Install the new rivets (2) to the heated seat module (1) in order to secure the heated seat module to the seat cushion frame.

  3. Object Number: 334294  Size: SH
  4. Connect the electrical connector to the heated seat module.
  5. Connect the heated seat cover electrical connectors and the wire hold down clips which were removed during disassembly.

  6. Object Number: 669309  Size: SH
  7. Remove the protective cover from the seat riser.
  8. Install the seat cushion assembly (1) to the seat riser.
  9. Notice: Refer to Fastener Notice in the Preface section.

  10. Install the front seat cushion fasteners (2).

  11. Object Number: 669311  Size: SH
  12. Adjust the front seat assembly up and forward in order to access the fasteners (1) at the rear of the front seat cushion assembly
  13. Install the front seat cushion assembly rear fasteners (1) to the seat cushion assembly.
  14. Tighten
    Tighten the seat cushion assembly fasteners to 9 N·m (80 lb in).

  15. Angle the front of the front seat cushion up, in order to access the front seat cushion assembly fasteners.
  16. Tighten
    Tighten the seat cushion assembly fasteners to 9 N·m (80 lb in).

  17. Enable the SIR. Refer to SIR Disabling and Enabling or SIR Disabling and Enabling in SIR.