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Discussion Starter #1
My impala has been locking when i start my car up and then the radio goes off and it stops driving after awhile. The other day i was driving and the car stopped runnin and wouldn't start up i used the extra key i had and it started right up. i have swithched keys before. What is the problem and how do i get it fixed.
 
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A friend had the same problem, engine would run for 10-30 min's. and then shut down. Some times would start with spare key/some times not. Had to have conputer replaced. suggest you ck with dealer for recall on your veh.
 
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Since it involves the security immobilizer system, it might be easiest to just take it to a GM Dealer.
 
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Sounds like you have a security key problem. Use the spare key exclusively for a while and see if the problem goes away. If so, have a new key made. If the problem still occurs, there may be a problem with the module that reads the coded key. A trip to the dealer will then be required to get it resolved>
 
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