2003 Cadillac CTS Logo
Posted on Feb 14, 2011

My 2004 cadillac cts says service anti theft system my TC light is on my gas guage & temp guage dont work key stuck in my ignition reverse lights dont work

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  • Anonymous Mar 24, 2014

    After charging my battery for my used Cadillac cts 05 the car went into anit theft mode my key is stuck and my gauges for my gas and temp arent showing how can i creset my car or could it be my ecm??? If so where could i find it on my car i dont own a manual and the Cadillac dealer is charging too much to check

  • Anonymous Mar 29, 2014

    Shift selector doesnt doesn't light up gas and temp guages inop anti theft won't disable traction control wont disable key stuck in ignition what could be my problem

  • Jason Arthurs
    Jason Arthurs Feb 12, 2018

    Did u solved the problem if so what was it.... i have the exact problem on my 2006 cts

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  • Posted on Dec 22, 2011
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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.

  • Anonymous Feb 29, 2012

    ECM sounds fried!!

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  • Posted on Apr 13, 2011
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Related Questions:

1helpful
1answer

I have a 2007 cadillac cts and the check antI theft system light is on car will start no gages working key will not come out. What could be causing this problem.

The key stuck in the ignition is either a bad lock cylinder or more than likely a bad ECM. I have the same problem but replaced the lock cylinder and new key, that changed nothing. If your Anti Theft light is on and traction control, no gas gauge nor temp gauge, ECM. More and more will quit working or go crazy in time until there is no power anywhere
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Won't start key stuck in ignition gas and temp gauge not working

this sounds like something is draining the battery like a bad alternator. if you install a new battery the car will run until the car drains the battery due to a bad alternator or bad wiring, these cars are all electronic so without a good battery you cant open door or start, take a look at battery and if it is low or dead again then have the charging system checked.
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My 2005 cadillac cts turns on but has the car lock symbol on along with the traction control light and the temp and gas gauges arent working. Then when I try to turn my key off it doesnt release my key....

try unhooking you're positive battery cable wile the car is running then turn ignition off and put positive cable back on. if the problem is electrical this should reset it. could also be a fuse or a splayed wire.
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2004 cts cadillac key stuck in ignition; t/c light on; car will not shift into gear.

Check for miss adjusted shifter cable. But sounds like you need a new tumbler of key switch.
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Hi . Entered our garage on an angle & indicator light did not switch off for quite a few hours before we noticed it . Does this frequently if dont come in to park straight. Battery on our cts cadillac...

When the battery went dead, it activated the anti theft system. That is why you can't get the key out of the ignition. If you do get it out, you still won't be able to start the car. Call the dealership and ask them what your options are, in the meantime, go to this website and read about the security sydtem: http://newtockies.ca/vatsbypass.
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2005 CTS Keys locked in ignition

Here's a link that may help.

http://www.cadillacforums.com/cadillac-models/cadillac-cts.html
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