GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 2WD 🢒 Seats 🢒 Seat Hardware, Trim, and Upholstery 🢒 Manual Seat Adjuster Mechanism Replacement

Removal Procedure
  1. Remove the front bucket seat assembly from the vehicle. Refer to Front Seat Replacement - Bucket.
  2. Remove the seat cushion trim panel. Refer to Seat Cushion Outer Trim Panel Replacement.
  3. Remove the lumbar support cable from the seat adjuster. Refer to Lumbar Support Cable Replacement.

    4. Object Number: 755831 Size: SH
  4. Remove the SIR harness connector (1) from the seat adjuster bracket.
  5. Remove the SIR harness from the harness clips (2) and remove the SIR harness from the seat adjuster.
  6. Remove the seat back from the seat adjuster. Refer to Front Seat Back Replacement.

    7. Object Number: 755837 Size: SH
  7. Remove the seat belt buckle nut (1).

    8. Object Number: 755845 Size: SH
  8. Remove the 4 nuts that secure the seat pan to the power seat adjuster frame.
  9. Remove the seat back. Refer to Front Seat Back Replacement.
  10. If replacing the seat adjuster mechanism, remove the seat position sensor and retain to use on the new adjuster. Refer to Inflatable Restraint Seat Position Sensor Replacement.

Installation Procedure
  1. If installing a new seat adjuster assembly, install the seat position sensor that was removed from the original adjuster, to the new seat adjuster. Refer to Inflatable Restraint Seat Position Sensor Replacement.

    2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 755845 Size: SH
  2. Install the 4 nuts that secure the seat pan to the power seat adjuster frame.

    3. Tighten
    Tighten the seat pan mounting nuts to 25 N·m (18 lb ft).

  3. Install the seat back. Refer to Front Seat Back Replacement.

    4. Object Number: 755831 Size: SH
  4. Install the SIR harness to the harness clips (2) on the seat adjuster.
  5. Install the SIR harness connector (1) to the seat adjuster bracket.

    6. Object Number: 755837 Size: SH
  6. Install the seat belt buckle to the seat adjuster.

    7. Tighten
    Tighten the seat belt buckle nut to 55 N·m (41 lb ft).

  7. Install the lumbar support cable to the seat adjuster. Refer to Lumbar Support Cable Replacement.
  8. Install the seat cushion trim panel. Refer to Seat Cushion Outer Trim Panel Replacement.
  9. Install the front bucket seat assembly to the vehicle. Refer to Front Seat Replacement - Bucket.
  10. For the passenger seat, re-zero the passenger presence system. Refer to Control Module References for setup and programming information.