2005 Pontiac Aztek Owner's Manual - Page 91

PASS-Key® III Operation Your vehicle is equipped with the PASS-Key® III (Personalized Automotive Security System) theft-deterrent system. PASS-Key® III is a passive theft deterrent system. This means you don't have to do anything different to arm or disarm the system. It works when you insert or remove the key from the ignition. When the PASS-Key® III system senses that someone is using the wrong key, it shuts down the vehicle's starter and fuel systems. The starter will not work and fuel will stop being delivered to the engine. Anyone using a trial-and-error method to start the vehicle will be discouraged because of the high number of electrical key codes. If the engine does not start and the SECURITY message comes on, when trying to start the vehicle, the key may have a damaged transponder. Turn the ignition off and try again. See PASS-Key® III Security Message on page 3-43. If the engine still does not start, and the key appears to be undamaged, try another ignition key. At this time, you may also want to check the fuse. See Fuses and Circuit Breakers on page 5-101. If the engine still does not start with the other key, your vehicle needs service. If your vehicle does start, the first key may be faulty. See your dealer who can service the PASS-Key® III to have a new key made. It is possible for the PASS-Key® III decoder to learn the transponder value of a new or replacement key. Up to 10 total keys may be programmed for the vehicle. This procedure is for learning additional keys only. If all the currently programmed keys are lost or do not operate, you must see your dealer or a locksmith who can service PASS-Key® III to have keys made and programmed to the system. See your dealer who can service PASS-Key® III to get a new key blank that is a cut exactly as the ignition key that operates the system. 2-17