GM Service Manual Online
For 1990-2009 cars only

Important: All transmitters which are to be recognized by the radio antenna module must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle. The order in which the transmitters are programmed is important. The first transmitter programmed will become Driver #1, and the second transmitter programmed will become Driver #2. The number on the back of the transmitter is for reference only. Additional unnumbered transmitters are also available. Use care to program the transmitters correctly.

To program transmitters:

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Use the scan tool menu Body, RCDLR, Module Setup, Program Key Fobs in order to access transmitter programming.
  4. Follow the directions on the scan tool in order to program the transmitters.
  5. Operate the transmitter functions of each transmitter in order to verify correct system operation.