GM Service Manual Online
For 1990-2009 cars only

Transmitter Programming Second Method

Programming the Remote Control Door Lock Receiver

Important:  The vehicle comes equipped with two transmitters. The receiver can be programmed to accept up to four transmitters. Additional transmitters are available. If the number of transmitters programmed exceeds four, the previously programmed transmitters will be erased in order, starting with the first transmitter.

To program the receiver to accept the transmitter, follow the procedure.


    Object Number: 493941  Size: SH
  1. Set the receiver to the reprogramming mode by installing a 5 amp fused jumper wire from cavity 8 (3) to cavity 4 (2) of the data link connector (1). The door locks will lock and unlock once to indicate you are in the reprogramming mode.

  2. Object Number: 493929  Size: SH
  3. Within 1 minute, press the LOCK (1) and UNLOCK  (2) buttons simultaneously until all door locks lock and unlock once each.
  4. Important: Additional transmitters must be reprogrammed within 30 seconds of the previous transmitter.

  5. To reprogram the next transmitter, press the LOCK (1) and UNLOCK (2) buttons of the transmitter (3) simultaneously until all door locks lock and unlock once each.
  6. Repeat the previous step for up to 4 transmitters


    Object Number: 493941  Size: SH
  7. Disconnect the fused jumper wire from the data link connector (1).

Transmitter Programming First Method

Programming the Remote Control Door Lock Receiver

Important:  The vehicle comes equipped with two transmitters. The receiver can be programmed to accept up to four transmitters. Additional transmitters are available. If the number of transmitters programmed exceeds four, the previously programmed transmitters will be erased in order, starting with the first transmitter.

To program the receiver to accept the transmitter, follow the procedure.

  1. Confirm that all the doors are closed and the ignition key is out of the ignition cylinder.
  2. Open the driver's door. Insert the key and turn the ignition switch to "ON" position within 10 seconds.
  3. Turn the ignition switch to OFF position within 10 seconds, and remove ignition key from lock cylinder.
  4. Push and release the drivers door jamb switch 3 times within 20 seconds.
  5. Insert the ignition key and turn the ignition switch to ON position within 10 seconds.
  6. Turn the ignition switch to OFF position within 10 seconds, and remove ignition key from lock cylinder.

  7. Object Number: 493929  Size: SH
  8. Press and hold both the LOCK (1) and UNLOCK  (2) buttons for more than 5 second within 20 seconds of removing the ignition key from the lock cylinder in step 6.
  9. Press Lock (1) or Unlock button (2) on the transmitter (3) within 5 seconds (after step 7). All the doors will lock/unlock to confirm that this process has been properly done. With this process, the transmitter has been programed.
  10. Important: If you want to program an additional transmitter, repeat the procedure from step 1 through 8.

  11. Make sure that the keyless entry system properly operates by operating each transmitter.