Question about 1998 Cadillac DeVille

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Theft security problem

I have a Cadillac deville 1998 v8 northstar. I had my alternator rebuilt and got a new battery. Vehicle started once but dash read battery not charging. Took vehicle to O'Riellys Battery tested bad. Had to get a jump to start vehicle. Replaced battery with warranty. Tried to start vehicle w new battery, vehicle wouldn't start. However dash lights and lights came on. It read across dash theft security problem, vehicle may not restart. What could this problem be?

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  • Cadillac Master
  • 21,873 Answers

Usually it means the computer is not accepting the chip in your key.
It can be the key, the sensor in the lock cylinder, or something in the security module or computer.
You might try another key or lock and unlock the driver's door with the key.

Posted on Jul 27, 2013

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Posted on Jan 02, 2017

onederer
  • 79 Answers

SOURCE: 94 cadillac won't start, even

Check the starter/solenoid - sounds like either one or both need replacing. If you can get the starter off - you can take it to an Auto Zone or an O'Reilly's to get it tested. I'm not sure of any tests for the solenoid (sometimes it's part of the starter) - some cars also have a starter relay switch. If that's the problems - it's usually cheap & easy to replace.

Posted on Jul 01, 2011

teds_repairs
  • 2101 Answers

SOURCE: 1997 Cadillac Deville, 8 cylinder, northstar engine. started w dash was displaying "anti theft - car may not restart" I replaced the BCM, and car will still not start.

bcm has very little to with the anti theft. you need to de active the anit theft

Posted on Dec 03, 2012

  • 147 Answers

SOURCE: Transmission and Torque converter replacement

rear wheel drive

Posted on Nov 11, 2008

  • 66 Answers

SOURCE: 2011 srx dashboard lights flickering

Hi Adam

You took the car to the dealer and they cant find anything? Hmmmm
Call GM customer service in Canada or USA tell them what your problem is its a 2011 tell them!!!! make sure you get customer service have your Serial number ready and they will get you to a dealer that will fix it. Make a big complaint and tell them you are going to give this car back to them just atch ans see, I fthey dont cal back again and speak to head manager trouble shooting and complaints of GM.The way they sound they cant find any problems sounds worse than that its a caddi they have dash ,cluster electrical problems you still have warranty its a year and half old :)

Joe

Posted on Oct 09, 2012

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Dec 29, 2015 | Cadillac Cars & Trucks

1 Answer

I have a Cadillac deville 1998 v8 northstar. I had my alternator rebuilt and got a new battery. Vehicle started once but dash read battery not charging. Took vehicle to O'Riellys Battery tested bad. H


When you replaced battery you activated the system. Need to read owner manual and see if it tells how to deactivate it. You may need to contact dealer to deactivate it.

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My 98 Cad Deville will not start it says anti theft problem


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Jun 16, 2011 | 1998 Cadillac DeVille

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I have a 1998 Cadillac Deville. I replaced the battery, and alternator. Its still not charging properly. The service charging system light is on on the dash. Can you tell me what else could be wrong?


Sounds like a faulty voltage regulator to me.Start the car and take a multimeter and check voltage coming out of the alternator it should be 14-14.6 volts if its not within these specs take alternator back and get a new one.

May 15, 2011 | 1998 Cadillac DeVille

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Oct 05, 2009 | 1998 Cadillac Seville

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System theft light is on my 1998 cadillac deville why?


because cadillac is the biggest garbage on the road stop worrying about your lights and start worrying about your headgasket and transmission. good luck with that car, suicidal northstars just decide to selfdestruct after 100k miles.

Jul 15, 2009 | 1998 Cadillac Seville

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NEED TO KNOW HOW TO FIX PROBLEM....


first i noticed my interior lights were coming on by themselves when i wasn't even in the vehicle.then the theft problem alert start showing up in dash.now i have to disconnect battery because my trunk and gas door will open if i don't connect the battery.

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