Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** you for the question. It sounds like you have a bad ignition switch. These fail all of the time on this vehicle. When they do they can cut off the power to various systems causing things like this to occur. You should be able to manually unlock the vehicle to get it open. It can also be a fuse box issue, but that is not as common. I hope this helps. Please let me know if you need further assistance.
You can try turning the key off and then try moving the shifter. If it still does not work then there is no power to the shift lock solenoid which is going to keep it from moving.