GM Service Manual Online
For 1990-2009 cars only

Object Number: 318988  Size: SH

The universal transmitter can be programmed to replace up to three hand-held transmitters, such as those used for garage door openers. The universal transmitter is powered by the vehicle's battery and the charging system. The effective transmission range of the universal transmitter may be different from the hand-held transmitter that the universal transmitter is replacing and from one channel to another.

Take the following precautions when you program a transmitter.

    • Do not use the universal transmitter with a garage door that does not have a stop and reverse feature. This includes any garage door opener that was manufactured before April  1, 1982.
    • Ensure that all objects and people are clear of the garage door when you program the universal transmitter with a garage door opener.

Use the following procedure in order to program a universal transmitter in order to replace a hand-held transmitter.

  1. Turn OFF the engine.
  2. If the universal transmitter has been programmed previously, proceed to Step 3. Otherwise, hold down the two outside buttons on the transmitter until the red light flashes rapidly (approximately 20 seconds).
  3. Release the buttons. This erases the transmitter's memory and any previous settings.

  4. Hold the end of the hand-held transmitter against the bottom surface of the universal transmitter so that the red light is still visible.
  5. Press the button on the hand-held transmitter and the desired button on the universal transmitter.
  6. Continue to hold both buttons through Step 5.

  7. Hold both buttons until the red light on the universal transmitter flashes rapidly. The rapidly flashing light, which may flash for up to 90 seconds, indicates that the universal transmitter has been successfully programmed.
  8. Release the buttons on the hand-held and the universal transmitters once the red light begins to flash rapidly.

If you require additional assistance with programming the universal transmitter, call customer service at 1-800-355-3515.