GM Service Manual Online
For 1990-2009 cars only

Perform the following steps in order to adjust the horizontal travel:

  1. Operate the seat control switch until one of the adjusters reaches the full forward position.
  2. Detach the horizontal drive cable from the adjuster after it has reached the full-forward position.
  3. Operate the seat forward until the other adjuster reaches the full-forward position.
  4. Connect the horizontal drive cable.
  5. Inspect the operation of the seat.