The vehicle's doors can be locked and unlocked, or the trunk can be unlocked from about 3 feet (1 m) up to 30 feet (9 m) away with the remote keyless entry transmitter.
LOCK: Press the LOCK button to lock all the doors. Pressing the LOCK button may arm the content theft-deterrent system. See Content Theft-Deterrent for more information.The vehicle may have Remote Lock/Unlock Confirmation. This feature provides feedback that a command has been received by the vehicle. The headlamps will flash and the horn may sound briefly. See "Remote Lock Feedback" under DIC Controls and Displays for programming information.
Each remote keyless entry transmitter is uniquely coded to prevent another transmitter from unlocking the vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer. Remember to bring any additional transmitters so they can also be re-coded to match the new transmitter. Once your dealer has coded the new transmitter, the lost transmitter cannot unlock the vehicle. The vehicle can have a maximum of four transmitters coded to it.
Under normal use, the battery in the remote keyless entry transmitter should last about three years.
If the battery is weak the transmitter will not work within its normal range. It is probably time to change the battery If you have to be very close to the vehicle before the transmitter works.
Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter.
To replace the battery do the following:
If the functions on the remote keyless entry transmitter do not work, or, if only the remote alarm works, after the battery is replaced, then the transmitter needs to be resynchronized to the receiver. Do this by pressing and holding the LOCK and UNLOCK buttons on the transmitter at the same time for about eight seconds.
To verify that the transmitter has been resynchronized, the horn will sound and the exterior lamps will flash once.