GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2000 🢒 Alero 🢒 Body and Accessories 🢒 Seats 🢒 Front Seat Lumbar Support Replacement

Removal Procedure
  1. Remove the front bucket seat from the vehicle. Refer to Front Seat Replacement - Bucket .
  2. Pull back the seat back cover in order to gain access to the lumbar plate. Refer to Front Seat Back Cushion Cover Replacement .

    3. Object Number: 740553 Size: SH
  3. Disconnect the lumbar plate cable from the lumbar plate.

    4. Compress the lumbar plate and with an assistant then disconnect the cable.


    Object Number: 740540 Size: SH
  4. Remove the lumbar support knob using a small flat-bladed tool to release the retainer then pull off.

    5. Object Number: 740552 Size: SH
  5. Pull back the front bucket seat cushion cover in order to gain access to the lumbar support cable and control. Refer to Front Seat Cushion Cover Replacement .
  6. Remove the screws from the lumbar support housing.

    7. Object Number: 740554 Size: SH
  7. Remove the lumbar support cable from the side of the bucket seat cushion frame.

    8. Object Number: 740535 Size: SH
  8. Remove the lumbar support cable and housing from the bucket seat cushion frame.

Installation Procedure

    Object Number: 740535 Size: SH
  1. Install the lumbar support cable and housing to the bucket seat cushion frame.

    2. Object Number: 740554 Size: SH
  2. Install the lumbar support cable to the side of the bucket seat cushion frame.

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 740552 Size: SH
  3. Install the screws to the lumbar support housing.

    4. Tighten
    Tighten the screws to the lumbar support housing to 3 N·m(27 lb in).


    Object Number: 740553 Size: SH
  4. Connect the lumbar plate cable to the lumbar plate.

    5. Compress the lumbar plate and with an assistant then connect the cable.

  5. Pull back the front bucket seat cushion cover. Refer to Front Seat Cushion Cover Replacement .
  6. Pull back the front seat back cover. Refer to Front Seat Back Cushion Cover Replacement .

    7. Object Number: 740563 Size: SH
  7. Install the lumbar support knob, by lining up the splines and pressing into place until fully seated.
  8. Install the front bucket seat in the vehicle. Refer to Front Seat Replacement - Bucket .