GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Impala 🢒 Preface 🢒 Cautions and Notices 🢒 Front Seat Lumbar Support Replacement

Removal Procedure
  1. Remove the front seat. Refer to Front Seat Replacement - Bucket .
  2. Remove the front seat back cover and pad. Refer to Seat Back Cover and Pad Replacement .
  3. Remove the front seat cushion cover and pad. Refer to Front Seat Cushion Cover and Pad Replacement .

    4. Object Number: 1912468 Size: SH
  4. Remove the screws (1) that retain the lumbar actuator to the seat cushion pan.

    5. Object Number: 1912471 Size: SH
  5. Move the lumbar actuator away from the seat far enough to disconnect the lumbar cable (1) from the actuator (2).

    6. Object Number: 1912472 Size: SH
  6. Note the routing of the cable for installation purposes, the cable (1) must route between the recliner rod (2) and the seat back frame.

    7. Object Number: 1912473 Size: SH
  7. Remove the lumbar assembly (1) from the seat back frame by doing the following:
    8. • Disconnect the lumbar assembly (1) from each side of the seat back frame.
    • Pull the bottom of the lumbar assembly (1) forward to disengage the retainers from the seat back frame.
    • Slide the lumbar assembly (1) downward and forward to release from the seat back frame.

Installation Procedure

    Object Number: 1912473 Size: SH
  1. Install the lumbar assembly (1) to the front seat back frame by doing the following:
    2. • Insert the top of the lumbar assembly (1) into the upper locations on the seat back frame.
    • Secure the lower portion of the lumbar assembly (1) by pushing the retainers firmly into the seat back frame.
    • Attach the sides of the lumbar assembly (1) to the sides of the seat back frame.

    Object Number: 1912472 Size: SH
  2. Route the lumbar cable (1) between the front seat back frame and the recliner rod (2).

    3. Object Number: 1912471 Size: SH
  3. Connect the lumbar cable (1) to the lumbar actuator (2).

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


    Object Number: 1912468 Size: SH
  4. Position the lumbar actuator to the seat cushion frame and install the 2 screws that secure the lumbar actuator to the seat cushion frame.

    5. Tighten
    Tighten the bolts to 6 N·m (53 lb in).

  5. Install the seat cushion cover and pad. Refer to Front Seat Cushion Cover and Pad Replacement .
  6. Install the seat back cushion cover and pad. Refer to Seat Back Cover and Pad Replacement .
  7. Install the front seat to the vehicle. Refer to Front Seat Replacement - Bucket .