Originally Posted by acelaman
Hello all, I am trying to find out how to programm a new key we had cut for our 2006 Cobalt SS. After a runaround from the dealer, the wife picked up our second key. She gets to work and notices that it is a Pontiac key! It works but I didn't dig the fact that my new car has a key that don't match! I picked up a blank from a dealer near work who had several in stock. The dealer where the car was purchased said they were hard to find! Any help would be greatly appreciated. Thanks
The information you are looking for is in your owners manual. First if your Cobalt is a 2006 model make sure the new key has a (+) marking on the side of it (see pic below) This indicates that it is a Passkey III+ key, and has a security transponder mounted in the rubber portion of the key. You will need to learn the NEW transponder into the Theft Deterrant System. You can do this as follows:
To program the new key do the following:
1.Verify that the new key has a (+) stamped on it.
2.Insert the already programmed key in the ignition and start the engine. If the engine will not start, see your dealer for service.
3.After the engine has started, turn the key to LOCK, and remove the key.
4.Insert the key to be programmed and turn it to the RUN position within five seconds of the original key being turned to the LOCK position.
5.The security light will turn off once the key has been programmed.
*Repeat Steps 1 through 5 if additional keys are to be programmed. You can program a maximum of 10 keys.