Problems with 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 key and ignition lock cylinder should be replaced to correct this condition.
Car Won't Start and Security Light is On on Cadillac Seville STS
Average mileage: 122,934 (10,023–201,003)
37 people reported this problem
14 people shared problem details
1998 Cadillac Seville STSVisitor
car wont start but the security light keeps lighting up
1997 Cadillac Seville STSVisitor
Anti theft system saying car may not start problem with the theft system
1997 Cadillac Seville STS130,000Visitor
car wont start anti theft system
1996 Cadillac Seville STS130,000Visitor
Every once in a while, I will go to start the car and it will start and turn right back off, and security light comes on!
2000 Cadillac Seville STS92,000Visitor
Just won't cramk and says check theft system
Last night car started fine now it won't start atall. It won't even turn over and there's this non-stop dinging sound even with the keys out and the door closed. And its a brand-new battery like 3 days old
1996 Cadillac Seville STSVisitor
1999 Cadillac Seville STS171,000Visitor
Car will not start battery good.
1999 Cadillac Seville STS188,000Visitor
Car sometimes turnover &sometimes don't and when it does start runs bout 20 seconds and then shuts off/with new battery
Key inserted but engine did not turn over and security light and message come on
2002 Cadillac Seville STS155,550Visitor
It still is not fixed. Car would not start. It is not a bad battery
1994 Cadillac Seville STSVisitor
No prende y la luz de seguridad se mantiene encendida. Revisamos la continuidad de la cableria y reparamos varios cables. Y ya funciona bien.
2000 Cadillac Seville STS143,000Visitor
Car will not start , no doorlocks,no radio,or Windows doesn't work security light stays on .
2000 Cadillac Seville STS82,000Visitor
Still waiting to get it fixed
I changed the spark plugs on this vehicle after buying it. I ran a little riugh before but runs...
I did a by pass to the theft system and it worked for a few but the problem is still there my r...
My car won't start do to security.What should I do?
I just bought a brand-new battery for my 94 Cadillac sts I put the battery in and it started ri...
Had key replaced. Maybe not programmed right. Several attempts before would turn on. Auto theft...