GM Service Manual Online
For 1990-2009 cars only

The Keyless Access System transmitter functions work up to 100 feet (30 m) away.

There are other conditions that can affect the performance of the transmitter. See Keyless Access System .


Object Number: 1657534  Size: A3

This vehicle comes with two transmitters

[block ] (Lock): Press to lock the doors. The light on the door flashes once. If [block ] is pressed two times, the doors lock, the light flashes, and the horn sounds.

(Unlock): Press to unlock the driver door. The light on the door flashes two times. Press two times within five seconds to unlock both doors. If it is dark enough outside, the interior lamps come on. Press to recall the memory settings. See Memory Seat, Mirrors and Steering Wheel for more information.

(Hatch/Trunk): Press and hold for about one second to open the hatch/trunk lid while the engine is off. If the engine is running, the shift lever must be in PARK (P) for an automatic transmission or NEUTRAL with the parking brake set for a manual transmission. See Parking Brake .

(Panic): Press to sound the vehicle alarm. Press any other button on the keyless access transmitter to stop the vehicle alarm.

Matching Transmitter(s) to Your Vehicle

Each keyless access transmitter is coded to allow only transmitters programmed to the vehicle to work. If a transmitter is lost or stolen, a replacement can be purchased and programmed by your dealer/retailer. Your dealer/retailer can reprogram the vehicle so lost or stolen transmitters no longer work with the vehicle. Each vehicle can have a maximum of four transmitters matched to it.

To match a new transmitter to the vehicle when there is a recognized transmitter (two recognized transmitters are required for Canadian owners):

  1. Turn the vehicle off.
  2. Have the recognized and new, unrecognized transmitters available.
  3. Insert the key into the key cylinder located above the license plate. See Hatch for more information.
  4. Open the trunk.
  5. Turn the key five times within five seconds.
  6. The DIC displays READY FOR FOB #X, where X can be 2, 3 or 4.

  7. Object Number: 1657542  Size: B3
  8. Place the new, unrecognized transmitter in the glove box transmitter pocket with the buttons facing towards the passenger side.
  9. Once the transmitter is programmed, a beep sounds. The DIC displays READY FOR #X, where X can be 3 or 4, or MAXIMUM NUMBER OF FOBS LEARNED.
  10. Press the Acc. button (ignition switch).

The Canadian immobilizer standard requires Canadian owners to see their dealer/retailer for matching new transmitters when two recognized transmitters are not available. United States owners are permitted to match a new transmitter to their vehicle when a recognized transmitter is not available. The procedure requires three ten minutes cycles to complete the matching process.

  1. Turn the vehicle off.

  2. Object Number: 1657542  Size: B3
  3. Place the new, unrecognized transmitter in the glove box transmitter pocket with the buttons facing towards the passenger side.
  4. Insert the vehicle key into the key cylinder located above the license plate. See Hatch for more information.
  5. Open the trunk.
  6. Turn the key five times within five seconds.
  7. The DIC message displays OFF-ACCESSORY TO LEARN.
  8. Press the Acc. button (ignition switch).
  9. The DIC reads WAIT 10 MINUTES and counts down to zero, one minute at a time.
  10. The DIC displays OFF-ACCESSORY TO LEARN again.
  11. Press the Acc. button (ignition switch).
  12. The DIC reads WAIT 10 MINUTES and counts down to zero, one minute at a time.
  13. The DIC displays OFF-ACCESSORY TO LEARN again.
  14. Press the Acc. button (ignition switch).
  15. The DIC reads WAIT 10 MINUTES and counts down to zero, one minute at a time.
  16. A beep sounds and the DIC reads READY FOR FOB #1. At this time, all previously known transmitters have been erased.
  17. Once the transmitter is recognized and programmed, a beep sounds and the DIC displays READY FOR FOB #2.

If additional transmitters need programing, take transmitter 1 out of the transmitter pocket and place transmitter 2 in the pocket. Up to four transmitters can be programmed. The DIC then displays MAXIMUM NUMBER OF FOBS LEARNED and exits the programming mode.

Press the Acc. button (ignition switch) when all the transmitters are programmed.

Battery Replacement

If NO FOBS DETECTED displays on the DIC when you try to start the vehicle, the battery is weak. Place the transmitter in the glove box transmitter pocket with the buttons facing towards the passenger side. Then, with the vehicle in PARK (P) for an automatic transmission, press the brake pedal and the START button. If the vehicle has a manual transmission, press the clutch and the START button. This starts the vehicle, however, it is recommended that the battery be replaced as soon as possible. The DIC may display FOB BATTERY LOW.

Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter.


Object Number: 1696401  Size: B3
  1. Separate the halves of the transmitter with a flat, thin object inserted into the slot on the side or back of the transmitter.
  2. Remove the old battery. Do not use a metal object.
  3. Insert the new battery, positive side facing down. Replace with a CR2032 or equivalent battery.
  4. Put the transmitter back together tightly.