Question about 2000 Cadillac DeVille

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2000 Cadillac Deville DTS is in anti- theft mode

I took the battery cable a loose and put it back, now car wont start, how do I get car out of anti-theft mode?

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  • Lauras eyes Oct 10, 2008

    Thank you so much for your reply jwyatt816. I will try your solution.

  • Lauras eyes Oct 10, 2008

    jwyatt816 thank you very much for your time and reply :) but your solutions did not work :(

  • dktaylro06 Feb 27, 2009

    I have a1996 cadillac el dorado,changed the battery, now dashboard reads theft system problem car may not restart. After that I changed the sensor inside the steering wheel, still no luck.

  • Anonymous Mar 15, 2014

    re set anti theft on 2006 cadillac dts

  • Anonymous Mar 15, 2014

    i put if you jump start the battery in a 1998 Cadillac Deville and it runs what could be wrong when a new battery is put in and the car wont start

  • Anonymous Mar 16, 2014

    how to find anti theft on a 2000 dodge dakota

  • Anonymous Mar 24, 2014

    the dash says that theft system problem car may not start. the dealer just put in a new alternator

  • Anonymous Mar 27, 2014

    Car starts runs for five miles then stops wont start for hours.

  • Anonymous Mar 29, 2014

    my 2000 galant has a anti-theft lockbox at the shifter is this standard or aftermarket?


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You can reset the system by turning key to on position for 5-10 mins and then try starting it but its probably a short or grounding prob try the engine to chassis ground

Posted on Oct 03, 2008

  • Ronaldhenryj Feb 08, 2011

    I'm having that same problem took it to caddy all they tried to do is nock my pockets they said it could be the bat but if not it's something called a cp3 which is the computer n the car by the way it's a 2000 dts that I drove home from work n the next day it didn't won't to start man I think north star did that for use to keep coming there


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On your key is a diode. Ohm test it . Your ignition is expecting to see that ohm. You can try to reset it by turning key on( no crank) for 10 min. Then turn off and repeat a second time. Then try to start,might work. 2 options replace ignition ( not so cheap on this model) 2nd option ohm key and build resistor to match. On steering column there is an orange wire going from column to bottom corner of wire harness above drivers
left foot. Inside that orange wire are 2 white wires. Cut and wire in resistor to the white wires on harness side not column side. System bypassed, now you can make a dollar copy of key not the 50$ key from dealer and never have the problem again

Posted on Mar 14, 2015

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flat fob key batteries will be half the problem. Because the immobiliser cannot read the fob keys it probably put the system into anti theft mode as well. Replace the fob key batteries and if it still will not start, some systems will reset by using a scanner .

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