GM Service Manual Online
For 1990-2009 cars only

The Garage Door Opener (GDO) is programmed by using the customers hand held transmitter.

Important: Do not use the GDO with any garage door opener that does not have the stop and reverse safety feature. This includes any garage door opener model manufactured before April 1, 1982.

Be sure that people and objects are clear of the garage door you are programming.

Garage Door Opener Programming

Turn the ignition OFF while programming the transmitter. Follow these steps to program up to three channels:

  1. If you have previously programmed a transmitter, proceed to step 2. Otherwise, hold down the two outside buttons on the GDO transmitter until the light on the GDO transmitter begins to flash rapidly (approximately 20 seconds). Then release the buttons. This procedure initializes the memory and erases any previous settings for all three channels.
  2. Decide which of the three channels you want to program.
  3. Hold the end of the hand held transmitter against the front surface of the GDO (less than one inch) so you can still see the light.
  4. Using both hands, press the hand-held transmitter button and the desired button on the GDO transmitter. Continue to hold both buttons through step 5.
  5. Hold down both buttons until you see the light on the GDO transmitter flash slowly and then rapidly. The rapid flashing, which could take up to 90 seconds, indicates that the GDO transmitter has been programmed. Release both buttons once the light starts to flash rapidly.

Training GDO for Rolling Code Receivers

This procedure is for training the customer's rolling code garage door openers to their GDO transmitter. The GDO must already be programmed to their hand-held transmitter. The training process below must be completed within 30 seconds or it must be repeated.

  1. Locate the train button on the garage door opener receiver. (Reference the operators manual for the garage door opener or call 1-800-355-3515 for assistance). Follow instructions for the garage door opener to know when the unit is in train mode.
  2. Return to the GDO transmitter in the vehicle and press the button that you want programmed three times for one second each time.
  3. Re-press to verify that the GDO transmitter has been programmed.

You may use either the hand-held transmitter or the GDO to open the garage door.

The GDO is compatible with most, but not all types and brands of transmitters. If a problem should occur with a compatibility conflict with a transmitter, call HomeLinkā„¢ at 1-800-355-3515.

Erasing Channels

To erase all three programmed channels, hold down the two outside buttons until the light on the GDO transmitter begins to flash. Individual channels cannot be erased, but can be reprogrammed using the Garage Door Opener Programming procedure.