Question about 2004 Cadillac CTS

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I have a 2004 Cadilac CTS we bought a replacement chip key which the Chev Olds dealer could not program I took the new key to a Cadilac dealer they told me the key is defective now the Chev dealer has ordered me a new key will I be able to program it using the old original key? And what would be the right way? Insert the original turn it to the on position turn off, remove it insert the new key turn it to the on position, wait for the security light to go out remove this key start the car with the old key, turn it off then use the new programed key to start the car???

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Okay, to program a key you will need two keys that are already programmed, insert one key ignition turned on and engine off, remove the key and within 10 sec insert the second key and turn ignition on with engine off, remove that key and within 10 sec insert the key to be programed. you will need to do a 30 min.relearn with only one key,you will turn ignition on with engine off and wait about 10 min until light goes out then remove the key and repeat this step when light goes out repeat step one more time then use key to start car, computer has learned all info. you will now turn off engine, insert programmed key turn key on engine off then remove the key and insert key to be programed within 10 sec.all done good day.

Posted on May 27, 2011

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