GM Service Manual Online
For 1990-2009 cars only

Front Seat Adjuster Replacement Driver

Removal Procedure

  1. Remove the driver front seat. Refer to Seat Replacement .
  2. Disconnect the seat belt wire harness.

  3. Object Number: 279099  Size: SH
  4. Remove the seat adjuster tie bar bolts (1).
  5. Remove the seat adjuster tie bar (2).
  6. Remove the cross wire (3).

  7. Object Number: 279096  Size: MH
  8. Remove the seat adjuster return spring (3).
  9. Remove the seat adjuster bolts (1).
  10. Remove the seat adjuster (2, 5) from the seat.

Installation Procedure

    Important: Verify that the right seat adjuster (2) and the left seat adjuster (5) sliding mechanisms are in the same position, when you install the tie bar.


    Object Number: 279096  Size: MH
  1. Install the right seat adjuster (2) and the left seat adjuster (5) sliding mechanisms.
  2. 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.

  3. Install the seat adjuster bolts (1).
  4. Tighten
    Tighten the bolt to 24 N·m (18 lb ft).

  5. Install the adjuster return spring (3).

  6. Object Number: 279099  Size: SH
  7. Install the adjuster tie bar (2).
  8. Install the tie bar bolts (1).
  9. Tighten
    Tighten the bolt to 10 N·m (89 lb ft).

  10. Connect the seat belt wire harness.
  11. Install the driver front seat. Refer to Seat Replacement .

Front Seat Adjuster Replacement Passenger

Removal Procedure

  1. Remove the driver or the passenger front seat. Refer to Seat Replacement .

  2. Object Number: 605632  Size: SH
  3. Remove the adjuster return spring assembly (1).
  4. Perform the following actions in order to remove the adjuster locking wire assembly (4):
  5. 3.1. Squeeze the hooked end of the seat adjuster locking wire together.
    3.2. Slide the retaining spring.
    3.3. Remove the spring from the seat adjuster lock bar.

    Object Number: 279099  Size: SH
  6. Remove the right front seat E-Z entry adjuster cable  (3) from the seat adjuster. Refer to Passenger Front EZ Entry Seat Replacement .
  7. Remove the seat adjuster bolts (1).
  8. Remove the seat adjuster (2) from the seat.

Installation Procedure


    Object Number: 605632  Size: SH

    Important: Verify that the right seat adjuster (3) and the left seat adjuster  (5) sliding mechanisms are in the same position, when you install the seat adjuster.

  1. Install the adjuster (3,5) to the seat bottom frame.
  2. 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.

  3. Install the seat adjuster bolts (2).
  4. Tighten
    Tighten the seat adjuster bolts to 24 N·m (18 lb ft).


    Object Number: 279099  Size: SH
  5. Install the E-Z entry adjuster cable to the seat adjuster. Refer to Passenger Front EZ Entry Seat Replacement .
  6. Perform the following actions simultaneously in order to install the adjuster locking wire assembly (3):
  7. • Attach the wire  (3) to each adjuster.
    • Squeeze the hooked end of the seat adjuster locking wire (3) together at each end.
    • Slide the retaining spring at each end.
  8. Install the adjuster return spring assembly.
  9. Install the driver or the passenger front seat. Refer to Seat Replacement .