If your theft light is on and stays on after the key is in the on position after self check, then you will most definitely have a no start condition. You can try leaving the key on for about 15 minutes to see if the theft system will reset. If so, you will probably need to have the lock cylinder and halo replaced.
SOURCE: Burning rubber smell inside car-2003 CTS Cadillac
Diagnosing this will be subject to a process of elimination. It could be the radio, blower motor or any other accessory particularly ones with moving parts; Try switching those off and try to note when this problem occurs and what is on/whatyou are doing. Something is getting hot causing the smell so it will be a situation where the accessory will have to run a while before doing it. It is a possibility that there is an electical curcuit overheating, but less likely. Lets rule out accessories first and give us an update. GL
SOURCE: cadillac cts cranks but won't start
My 2003 CTS would not start on the first, second or third try after filling the gas tank. Finally after several months of this occuring every two weeks a check engine light came on. It was the evac purge valve. Tom
SOURCE: 2003 Cadillac CTS won't start after disconnecting battery
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
SOURCE: my 2004 cadillac cts says service anti theft
you have a low voltage problem. either a bad battery or a brake in a wire somewhere. My sister had the same problem in her car. Had it to the gm dealer 3 times they couldnt figure it out. I put a new battery in, new wire from batter to starter, and a new altenater and wires to it. just by dumb luck i noticed the (+) wire from the bat to the fuse box under the hood was broke at the fuse box. Put new wire on it and 2.5 years later no problems.
the IMMO page in your users guide covers IMMO760 views
Usually answered in minutes!
×