Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** for the question. If it was not in park and if the ignition was left on then the battery may have shorted internally or is may have cause corruption in the computer programming. I would load test the battery to see if it is holding at least 12.5 volts. If not then it may need to be recharged or replaced. If the battery is fine then disconnect the cables and touch them together. Then reinstall them to see if the programming will work itself out. It can also short the ignition switch when it is left on. I hope this helps. Let me know if you need anything else.
Would you be able to unhook the battery? If not you can try holding the lock and unlock buttons on the remote together to see if that will help.
Let me know if I can help in any other way.
If you get someone to try any of this let me know and I can assist you further.
Any time. Have a great rest of your night and please rate when you can. Thank you.