Car Won't Start and Security Light is On on Cadillac DeVille

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

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Average mileage: 125,484 (14,000–200,890)
13 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
94 people reported this problem
46 people shared problem details
Car won't start, security. Installed resistor under dash, bypassed resistor antitheft. Car starts every time!
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car seemed to be running fine.picked my grandson up from preschool and stopped at the store on the way home.turned off the car went inside for approximately 15 minutes. when i came out i put the key in the ignition.all dash lights came on but nnothing happened when i turned the key to start it.i tried getting a jump but still nothing. i ended up having it towed home.after doing some research came to the conclusion it was my anti theft system. i asked a mechanic friend to look at it to confirm which he did.unfortunately i cant afford to pay my local dealer to fix it so its been parked for 3 months. i have had to take a taxi to work or depend on friends and family for a ride.i am really disappointed with cadillac for being aware of this problem and not fixing it or at least recalling it.
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1994 Cadillac DeVille180,000
the car wont start due to anti-theft system, it will say wait three minutes then start, but repeat this process 4-5 times
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anti-theft (anti-owner) system.
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1996 Cadillac DeVille133,000
the anti theft light comes on on the dash and says the car may not start
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1992 Cadillac DeVille188,000
The car turns over but won't start. Let it sit for about 3 hours and It fires right up. The car starts beautifully when it wants to. I got stuck at the store left the car came back the next day and it started right up. I have no idea what it is. No machanic in my town knows and there computers don't know. No check engines light nothing indicating something is wrong.
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1995 Cadillac DeVille180,000
The Cadillac dealership can check the key in less than a minute to determine if the chip is good. The next step is the ignition switch. They are known for the two wires to break, but my ignition switch was bad.I bought an AC Delco switch for $40 and Midas charger $107 to install it. I did have to get Cadillac to cut and program the key. That was another $40 Good Luck
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1997 Cadillac DeVille155,597
my car will start theft system problem. we bought a new key and the cylinda is good how do i fix it or went can do check.
theft system car may not start bought it to dealer on friday still not fixed says needs ingition lock & coumpter box maybe 500 bucks
1993 Cadillac DeVille122,000
car will not start
Check solniod wire no fire will not start anti theft light stays on
1991 Cadillac DeVille120,000
car wont start anti theft system
1997 Cadillac DeVille157,000
Car won't start. won't make a click. Says service security system.
I can not start my car by the key, only with my remote start. I have to wait 3 minutes in order to retry but that is no guarantee.
Car won't start because of theft system
1991 Cadillac DeVille180,000
the chip in my key fell out of the key it self
1998 Cadillac DeVille110,000
First time i had anti theft system issues my key wouldnt even turn. Happened overnight. Took it in to dealer and payed $600 for a new cylinder and set of keys. Car ran perfect! Then a few months later without warning car started and turned itself off three seconds later. Had some electrical issues with the seats and the buttons on the dash plus a new theft system problem started showing, so i replaced the battery to get it to work, worked for a day, then turned right back off.
1999 Cadillac DeVille154,000
Put in a used digital cluster car won't start everything locked up. Took it out put old one back in car started.
1996 Cadillac DeVille120,287
Theft detection lights went on, went through the 3 minute cycle before restarting, car restarted once. Tried with the spare key and checked all fuses with no luck. Will be bringing it in for repairs (likely as you outlined).
have e52 e53 f32 car turns over but wont start can prime intake starts fuel injectors not working
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