Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Is this the procedure you did?
Use this procedure after replacing any of the following components:
Important: This procedure is not available on vehicles equipped with EXPORT configured theft deterrent control modules.
Important: The vehicle learns the key transponder information and/or passwords on the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
It is important not to remove the key when you turn the key off.
Does your key have a mark near the top of the key near the plastic part? It might be PK3 or a circle with a plus sign in it.