Question about 2000 Cadillac DeVille

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Cadillac won't start

My 2000 cadillac deville decided to be difficult. When I was pulling into a parking spot, my lights on the dash did something odd: the temperature gauge, gas gauge, avg mpg, and miles left all went blank; AND the spedometer read 150 mph... when I was surely going less than 1 mph. The locks also refused to lock when the door was open (but would when I had the door closed). I thought it was odd, but I was in a hurry to get into the place I was going.
Ten minutes later, i came out to the car, and it would not start. And all the gauges that were previously blank were still blank.

I called my car guy, and he told me it was most likely the battery. Later on my husband brough a new battery over, but NOW the stupid security system has locked the car up so we can't do anything.

We do have a switch and a button to reset the security... I think. But I don't know how to use it, and the car doesn't seem to be responding!

I had to get a ride to work, and now I am wondering how to get my car working again, and out of the public parking lot!

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I'm having the same problem right now I bought a new batterie and it still won't start and it sounds like the fuel hoses keep running unless I unhook batterie so got it towed to Cadillac.. It's so weird..

Posted on Jan 22, 2012

  • ajann14
    ajann14 Mar 14, 2012

    My car did the same thing I took it to the shop My ground wire was broke the wire was the one connecting the main cable to the battery cable once they replaced the end on the ground wire it started back working fine


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Unhook the battery for about 15 minutes.... that should reset it... try shutting of the alarm as you normally would. if it has a theft proof stereo... make sure you know the code to activate it again

Posted on Mar 13, 2009

  • Radell37 Apr 11, 2011

    My service theft system is on and I can't start my car tried unhooking the battery and it still won't start can someone help me out



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