I have a cadillac 2003 cts car and come out theft system how can desactivated can you help me please

Question edited for clarity.
Question moved to model category.

By disconnecting the battery, you also disconnected all the set up of the security and engine immobilizer coding.

https://www.google.com/search?q=2003+cadillac+cts+security+system+reset

How do i perform the 2003 Cadillac CTS anti theft reset?

Vehicle History https://www.vehiclehistory.com > questions > how-do-...
To reset the anti-theft system in your 2003 cadillac cts depress the key fob's panic button for five seconds before pressing the lock button twice standing ...
2 answers · Top answer: To reset the alarm on the 2003 Cadillac CTS You have two options. You can pop the hood and disconnect the positive battery cable, then leave it off for ... People also ask
How do I get my Cadillac out of anti-theft mode?"

Look for a button that allows you to slide the physical key out of the fob. Step 2: Turn the vehicle key to unlock the car door without releasing it. Hold the key for 30 seconds in this position. This will signal to your car's system that you have the right key, and will enable you to bypass your car's alarm system.

need more info

lol its telling you what the problem is, anti theft is having problems

Have your dealer or a qualified Cadillac mechanic check the anti-theft system and your key. Your ECM may need to be re-flashed, but have a diagnostic scan performed to determine possible solutions.

sounds like anti theft device has kicked in needs to be reset dont know how to do that though

Don't do that again! You will need to re-boot the on board computer system by entering a code. Call your nearest Cadillac dealer.

If you need further help, reach me via phone at https://www.6ya.com/expert/lloyd_4256582adacd68ee

1998 cadillac deville what is it theft system problems what i see car may not restart

What is the solution ?

My 2003 CTS had the same noise problem while on vacation one day. When I returned from the vacation and dropped it off at the Caddy dealership it was revealed that several of the "U" joint nuts had worked themselves loose. A quick fix was to tighten up the "U" Joint bolts and the problem was solved!

Cadillac did send out recalls on the key issue. I have a 2004 cts and they took care of the problem free of charge.