kissmyss 
Does anyone know how many digits are used and are there letters in the code.
This message was from GM customer service, Is this true or is this just to get me to the dealer
You would have to come in and have the l cylinder replace through the dealership. If you do this repair by yourself, and get a key made to work with the ignition. The vehicle will go into lock up mode because the car would think it was being stolen. In my comparative search for the best pricing I discovered that Multi Chevrolet in Union, NJ has the best quote of $125 -175 for the lock and $50 for the key. Thank you for letting me know that you travel to New Jersey and Connecticut that's helped with the price point the other places were too high. I hope you get this issue resolved. Let me know, if you need any other assistance.
