GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 2WD 🢒 Seats 🢒 Power Seats 🢒 Front Seat Lumbar Support Replacement

Removal Procedure
  1. Remove the front seat from the vehicle. Refer to Front Seat Replacement - Bucket.
  2. Remove the seat back cover and pad. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement.
  3. Remove the seat back panel. Refer to Driver or Passenger Seat Back Cushion Finish Panel Replacement.
  4. Disconnect the electrical connector from the lumbar motor.
  5. Detach the lumbar clip from the top of the seat back frame.

    6. Object Number: 753526 Size: SH
  6. Remove the lumbar motor mounting screw.
  7. Remove the lumbar assembly from the seat.

Installation Procedure
  1. Position the lumbar assembly onto the seat.

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


    Object Number: 753526 Size: SH
  2. Install the lumbar motor mounting screw and tighten to 8 N·m (71 lb in).
  3. Attach the lumbar clips onto the top and bottom of the seat back frame.
  4. Connect the electrical connector to the lumbar motor.
  5. Install the seat back panel. Refer to Driver or Passenger Seat Back Cushion Finish Panel Replacement.
  6. Install the seat back pad and cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement.
  7. Install the seat in the vehicle. Refer to Front Seat Replacement - Bucket.