GM Service Manual Online
For 1990-2009 cars only

If the seat interface module (SIM) is removed or replaced it must the vehicle identification number (VIN) must be relearned.

  1. Install a diagnostic scan tool.
  2. Key ON, engine OFF, select Body.
  3. Select Memory Seats and Mirrors.
  4. Select Programming.
  5. Important: The VIN will automatically program to the SIM once the following process is selected.

  6. Select Learn Vehicle Identification Number (VIN).

Perform the Diagnostic Repair Verification after completing the proceeding procedures.