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this is what you will need to do as your key has pats and can be the cause of your problem the key will give a different code to the computer control each time the car starts the key and pats know the next code and this may have been interrupted and
you will need to go to the dealer to get the system reprogramed or just reset but
my advice is to not use another key that has not been used for a long time.
This key is not available at Wal-Mart or your local hardware show. It is available only at the dealer and from certain locksmiths.
The key must be programmed to your vehicle. This is a simple process if you already have two existing working keys for the car. If you don't have two keys then you will have to go to the dealer or to a locksmith with the special equipment needed to program these types of keys. This will cost you from $50-$75 to have this done.
please if you have any questions just ask i will be here