Starts and dies imidietly

Asked by Nov 23, 2016 at 02:59 PM about the 2003 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

I broke my 2003 northstar cadillacs key changed
the ignition cylinder and now it won't stay on for
more than 3 seconds.I need my car to run what
can I do?

2 Answers


Sounds like a security system issue. Unfortunately you're going to have to visit your local GM Dealer for repairs. HTH. -Jim


I did this on mine. It takes some time but it can be done. Put key in ignition to the on position, security should be flashing. When it stops (about 17 minutes) turn off and put back in the on position, security light flashing. Repeat 2 and turn to start. Should start. I'm not saying it will work but you can try. Cost nothing to do. If no start you will be visiting the dealership or call locksmith that can program keys.

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