GM Service Manual Online
For 1990-2009 cars only

The Keyless Access System transmitter functions will work up to 195 feet (60 m) away, however, the operating range may be less while the vehicle is running.

The Keyless Access System also lets you lock and unlock the vehicle's doors and access the trunk without removing the remote transmitter from your pocket, purse, briefcase, etc. The system operates when the transmitter is located within 3 feet (1 m) of the door or trunk of your vehicle. See "Keyless Doors Unlock" and "Keyless Ft (Front) Door Unlock" under Vehicle Personalization .

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


Object Number: 1657535  Size: A3

Your vehicle comes with two transmitters.

[block ] (Lock): Press once to lock the doors. The lock status light on the front doors will turn on for five seconds and the turn signal indicators will flash. If is pressed twice, the doors will lock, the status light on the door will turn on for five seconds, the turn signal indicators will flash twice, and the horn will sound once. If the engine is off, the windows may be closed from outside the vehicle using the lock button on the keyless access transmitter. Press and hold [block ] for more than two seconds to close any window. If any window is unable to close completely, it will reverse and the horn will chirp. See "Anti-Pinch Feature" under Power Windows for more information. See "Lights Flash at Lock" and "Horn Chirps at Lock" under Vehicle Personalization to change the feedback feature.

(Unlock): Press once to unlock the driver's door. The turn signal indicators will flash twice. Press twice within five seconds to unlock all the doors. If it is dark enough outside, your interior lamps will come on. See "Lights Flash at Unlock" and "Ext. (Exterior) Lights at Unlock" under Vehicle Personalization to change the feedback feature. If your vehicle has the memory feature you can program and recall memory settings when you press on the keyless access transmitter. See Memory Seat, Mirrors and Steering Wheel for more information.

(Remote Start): Press to operate the remote start feature. See Remote Vehicle Start .

(Trunk): Press and hold for about one second to open the trunk while the engine is turned off or the shift lever is in PARK (P).

(Vehicle Locator/Panic Alarm): Press and release to locate your vehicle. The horn will chirp three times and the turn signal lamps will flash three times. Press and hold for three seconds to sound the panic alarm. The horn will chirp and the turn signal lamps will flash for 30 seconds. Press and release again to cancel the panic alarm.

Matching Transmitter(s) to Your Vehicle

Each Keyless Access System is coded to allow only transmitters programmed to your vehicle to work. If a transmitter is lost or stolen, a replacement can be purchased and programmed through your dealer/retailer. Your dealer/retailer can reprogram your vehicle so lost or stolen transmitters no longer work with your vehicle. Each vehicle can have a maximum of four transmitters.

Two recognized transmitters are required for Canadian owners.

To match a new transmitter to your vehicle when you have a recognized transmitter:

  1. The vehicle must be off.
  2. Have the recognized transmitter and the new, unrecognized transmitter(s) with you.
  3. Insert the vehicle key into the key lock cylinder located on the outside of the driver's door.
  4. Turn the key to the unlock position five times within five seconds.
  5. The Driver Information Center (DIC) will display READY FOR FOB X, where X can be 2, 3 or 4.

  6. Object Number: 1674022  Size: B3
  7. Place the new, unrecognized transmitter into the transmitter pocket with the transmitter buttons facing the front of the vehicle. The transmitter pocket is inside the center console storage area located between the driver and front passenger seats.
  8. Once the transmitter is programmed, a beep will sound. The DIC will display READY FOR X, where X can be 3 or 4, or MAX # FOBS LEARNED.
  9. Remove the transmitter from the transmitter pocket and press the unlock button on the keyless access transmitter two times.

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 will require three, ten minute cycles to complete the matching process. Do the following:

  1. The vehicle must be off.

  2. Object Number: 1674022  Size: B3
  3. Place the new, unrecognized transmitter into the transmitter pocket with the transmitter buttons facing the front of the vehicle. The transmitter pocket is inside the center console storage area located between the driver and front passenger seats.
  4. Insert the vehicle key into the key lock cylinder located on the driver's door.
  5. Turn the key to the unlock position five times within five seconds.
  6. The DIC message will display OFF/ACC TO LEARN.
  7. Press the Acc. button (ignition switch).
  8. The DIC will read WAIT 10 MINUTES and will count down to zero, one minute at a time.
  9. The DIC will display OFF/ACC TO LEARN again.
  10. Press the Acc. button (ignition switch) again.
  11. The DIC will again read WAIT 10 MINUTES and will count down to zero, one minute at a time.
  12. The DIC will display OFF/ACC TO LEARN again.
  13. Press the Acc. button (ignition switch) again.
  14. The DIC will again read WAIT 10 MINUTES and will count down to zero, one minute at a time.
  15. A beep will sound and the DIC will read READY FOR FOB 1. At this time, all previously known transmitters have been erased.
  16. Once the transmitter is recognized and programmed, a beep will sound and the DIC will display READY FOR FOB 2.
  17. Remove the keyless access transmitter and press the unlock button twice to initialize it.

If you have additional transmitters to program, this process can be repeated until four transmitters have been programmed. The DIC will then display MAX # FOBS LEARNED and will exit the programming mode.

When you are done programming transmitters, press the unlock button on each keyless access transmitter twice. After performing this process, transmitters previously programmed will no longer work with your vehicle and must be reprogrammed.

Battery Replacement

Replace the battery if the KEY FOB BATTERY LOW message displays in the DIC. See "KEY FOB BATTERY LOW" under DIC Warnings and Messages for additional information.

A weak battery may also cause the DIC to display NO FOBS DETECTED when you try to start the vehicle. If this happens, place the transmitter in the center console storage area transmitter pocket with the buttons facing to the front of the vehicle. Then, with the vehicle in PARK (P) or NEUTRAL (N), press the brake pedal and the start button. See Starting the Engine , for additional information about your vehicle's electronic keyless ignition with push button start. Although this will start the vehicle, it is recommended that you replace the transmitter battery as soon as possible.

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

To replace the battery:

  1. Separate the halves of the transmitter with a flat, thin object inserted into the slot on the side 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.