2001 Pontiac Aztek Owner's Manual - Page 96

Matching Transmitter(s) to Your Vehicle Each remote keyless entry transmitter is coded to prevent another transmitter from unlocking 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. When the dealer matches the replacement transmitter to your vehicle, any remaining transmitters must also be matched. Once your dealer has coded the new transmitter, the lost transmitter will not unlock your vehicle. Each vehicle can have only four transmitters matched to it. See your dealer to match transmitters to another vehicle. Battery Replacement Under normal use, the battery in your remote keyless entry transmitter should last about three years. United States Canada You can tell the battery is weak if the "KEY FOB BATTERY LOW" message appears in the message center. If you get this message, the battery in the key fob needs to be replaced. 2-12