Your vehicle has a Keyless Access System that allows you to lock and unlock your doors, unlock your trunk lid and disarm or arm your theft-deterrent system. The range distance is as much as 100 feet (30 m) away.

Your vehicle comes with two transmitters, and up to four can be matched to your vehicle. See "Matching Transmitter(s) to Your Vehicle" later in this section.

[block ] (Lock): Press this button to lock the doors. The indicator light on the door will flash once. If this button is pressed twice, the doors will lock, the light will flash once and the horn will sound once.

(Unlock): Press this button once to unlock the driver's door. The indicator light on the door will flash twice. Press the button twice within 10 seconds to unlock both doors. If it is dark enough outside, your interior lamps will come on. Your memory settings may also be recalled when you press the unlock button on the keyless access transmitter. See Memory Seat, Mirrors and Steering Wheel for more information.

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

Matching Transmitter(s) to Your Vehicle

Each keyless access transmitter is coded to prevent another transmitter from working with your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer. Remember to bring any remaining transmitters with you when you go to your dealer. Once your dealer has coded the new transmitter, the lost transmitter will not work with your vehicle. Each vehicle can have a maximum of four transmitters matched to it.

To match a new transmitter to your vehicle when you have a recognized transmitter, do the following:

1. The vehicle must be off.
2. Have the recognized and new, unrecognized transmitters on your person.
3. Go to the rear of the vehicle and insert the vehicle key into the key cylinder located on the lower rear fascia on the driver's side of the vehicle. See Trunk for more information on the key cylinder.
4. Open the trunk.
5. Turn the key five times within five seconds.
6. The Driver Information Center (DIC) will display READY FOR FOB #X. X can be 2, 3 or 4.
7. Place the new, unrecognized transmitter in the glove box transmitter pocket with the buttons facing to the right.
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. Press the ACC button.

The Canadian immobilizer standard requires Canadian owners to see their GM dealer for matching new transmitters when a recognized transmitter is 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. Place the new, unrecognized transmitter in the glove box transmitter pocket with the buttons facing to the right.
3. Go to the rear of the vehicle and insert the vehicle key into the key cylinder located on the lower rear fascia on the driver's side of the vehicle. See Trunk for more information on the key cylinder.
4. Open the trunk.
5. Turn the key five times within five seconds.
6. The DIC message will display OFF-ACC TO LEARN.
7. Press the ACC button.
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.
11. The DIC will 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.
14. The DIC will 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.

If you have additional transmitters to program, take transmitter 1 out of the transmitter pocket and place transmitter 2 in the pocket. This can be done repeatedly until up to 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 ACC button.

Battery Replacement

Under normal use, the battery in your keyless access transmitter should last about three years.

You can tell the battery is weak if the transmitter will not work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it is probably time to change the battery.

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 glove box transmitter pocket with the buttons facing to the right. Then, with the vehicle in PARK (P) or NEUTRAL (N), press the brake pedal and the START button. Although this will start the vehicle, it is recommended that you replace the transmitter battery 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.

1. Insert a coin or similar object into the slot on the back of the transmitter and gently pry apart the front and back.
2. Gently pull the battery out of the transmitter.
3. Put the new battery in the transmitter, positive (+) side up. Use a battery, type CR2032, or equivalent.
4. Reassemble the transmitter. Make sure to put it together so water will not get in.
5. Test the transmitter.