Question about 2005 Pontiac Montana SV6
Swap the remote key. Try one key one day another the next. Don't mount it - just leave it to where it is closer to the key slot. Sounds like interference or a weak battery - or perhaps a damaged chip. Dropped key/exposure. This is of course a long shot but I am guessing you tried all the more traditional fixes.
Thanks for letting FIxYa help.
Posted on Apr 28, 2010
Your vehicle is equipped with the PASS-Key II (Personalized Automotive
Security System) theft-deterrent system. PASS-Key II is a passive theft-deterrent
system. It works when you insert or remove the key from the ignition.
PASS-Key II uses a resistor pellet in the ignition key that matches a
decoder in your vehicle. When the PASS-Key II system senses that someone
is using the wrong key, it shuts down the vehicle’s starter and fuel
systems. For about three minutes, the starter won’t work and fuel won’t
go to the engine. If someone tries to start your vehicle again or uses
another key during this time, the vehicle will not start. This
discourages someone from randomly trying different keys with different
resistor pellets in an attempt to make a match.
The ignition key must be clean and dry before it’s inserted in the ignition or the engine may not start. If the engine does not start and the SECURITY light stays on when you try to start the vehicle, the key may be dirty or wet. Turn the ignition Off. Clean and dry the key. Wait about three minutes and try again. The SECURITY light may remain on during this time. If the starter still won’t work, and the key appears to be clean and dry, wait about three minutes and try another ignition key. At this time, you may also want to check the fuses (see “Fuses and Circuit Breakers” in the Index). If the starter won’t work with the other key, your vehicle needs service. If your vehicle does start, the first ignition key may be faulty. See your dealer or a locksmith who can service the PASS-Key II. If you accidentally use a key that has a damaged or missing resistor pellet, the starter won’t work. The SECURITY light will flash. But you don’t have to wait
Three minutes before trying another ignition key. See your dealer or a locksmith who can service the PASS-Key II to have a new key made. If you’re ever driving and the SECURITY light comes on and stays on, you will be able to restart your engine if you turn it off. Your PASS-Key II system, however, is not working properly and must be serviced by your dealer. Your vehicle is not protected by the PASS-Key II system. If you lose or damage a PASS-Key II ignition key, see your dealer or a locksmith who can service PASS-Key II to have a new key made. In an emergency, call the Pontiac Roadside Assistance Center at 1-800-ROADSIDE or 1-800-762-3743. (In Canada call 1-800-268-6800.) -Key
Posted on Apr 28, 2010
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Posted on Jan 02, 2017
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