GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the front seat. Refer to Seat Replacement .
  2. Place the seat on a clean protected surface.
  3. Disconnect the electrical connector.

  4. Object Number: 258236  Size: SH
  5. Remove the retaining washers from the pivot pins at each end of the motor assembly.
  6. Remove the pivot pins.
  7. Remove the rear vertical adjuster motor (4).

Installation Procedure


    Object Number: 258236  Size: SH
  1. Install the rear vertical adjuster motor (4).
  2. Install the pivot pins.
  3. Install the retaining washers.
  4. Connect the electrical connector.
  5. Install the front seat. Refer to Seat Replacement .
  6. If the vehicle is equipped with memory seats, calibrate the seat. Refer to Memory Seat Calibration .