I saw MANY other people with the exact same problem as my aunts car (she is 91 years old, so her problem is also my problem plus a 50 mile round-trip). It seems that there is no solution- the 'anti-theft device' recognizes the car key as a 'foreign' key due to wear and tear on the interior of the tumblers or the actual key, and locks you out. I have read 4 alleged fixes to the problem: 1). Putting powdered graphite into the ignition keyhole- allegedly worked fine. 2). Blow out keyhole with compressed air can- same as above. 3). Turn to 'on' position and wait 5 mins- same as above. 4). Cut the yellow wire- 3 say it worked fine 1 said it caused more problems.- what I need to know is which yellow wire are we talking about, the ignition wiring I'm guessing.

Any thoughts on this will be much appreciated.

Finally, I agree with one guy who wants to start a class-action against Chevrolet. Lets do it!

Well It Looks Like I'm Not the only one with this problem, and I'm kinda glad to hear its common.

Well I bought the car in October of 2007 with just about 84,000 miles on it. When I test drove the car, It had they keypad for an alarm but when I bought the car, the was no longer a key pad. Thinking nothing of it, I left it, but when I got a dead battery, thats when It came into question. Taking the battery out, the alarm started going off. With no way of turning it off, i just let it run its course but eventually got pissed and unplugged the wire for the sound. The next day I got a new battery and thats when the problems started. Every time I opened the door, the alarm would go off without any sound. The lights would just flash and even when I started the car they'd still flash even as i kept driving. Eventually they'd turn off, but then they'd come on again. It was annoying the have the lights flash everytime the door opened. As of right now, I have not found a fix, and even emailed the dealer about it and they said nothing can be done. I should have just gotten a Toyota...