Question about 1999 Pontiac Grand Prix

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Securitysystemwont letme start my car.how can i disconect it ?

Ihave a 1999 grand prix my security system shut it doun. how can i disconect it so my car will work agine?

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Im not as familiar with the security system on the Grand Prix as I am with other parts. I would first start with disconnecting the battery for a few minutes and see if that makes any difference. If it doesnt, there is an online Grand Prix community that you can visit at www.grandprixforums.net. Just sign up and post up your problem there. There are many great and knowledgeable people on that forum and you should be able to find a solution there if disconnecting the battery does not work.

Posted on Jan 01, 2009

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Posted on Jan 02, 2017

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My 1999 grand prix stalls and dies at stops.


My Pontiac Grand Prix is also a 99, it has 216,+ thousand miles on it, it runs great, idles good, I need to replace the oxygen sensor tho as it shuts off on me while driving or sometimes coming to a stop. You might try checking the fuel filter and pump as well.

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How do i reprogram the ignition after it has been changed on a 2002 grand prix?


  • disconect battery for 30 seconds, reconect.
  • try to start car, leaving key on for 10 minutes or untill security light stops blinking.
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then try to start car. if this doesnt work repeat procedure.
Hope this helps

Nov 10, 2009 | 2000 Pontiac Grand Prix

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Starts and runs 3-5 seconds and shuts down


Sounds like your security system is shutting the car down. You should be able to leave the key on for 15 minutes and it will reset itself. Make sure you are using factory keys, and they are in good condition.

May 28, 2009 | 2002 Pontiac Grand Prix

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2000 Pontiac GTP starts then shuts off. I know that the problem has something to do with the security system but I cant figure out what exactly is causing it to shut off.


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Jan 28, 2009 | 1999 Pontiac Grand Prix

1 Answer

Security system wont let car start


It sounds like the security system has been activated so you need to roll down the drivers side window and close the door. Reach in and turn on the key to the Run position and leave in on for 10 minutes. After 10 minutes is up, turn off the key and then try to start the car. The car should start. If it doesn't start do the process over again. This usually fixes the problem. There is no way to turn off the security system unless you have a key fob. If you have the key fob, just unlock the car and that will disable the security system. I hope this has been helpful.

Jan 02, 2009 | 1999 Pontiac Grand Prix

1 Answer

The security system made my 1999 grandprix gt not start


There is no way to disconnect the security system on your car but there is a way to reset it. Roll down the drivers side window and close the door. (Stay out of the car, this is why you roll down the window) Reach in and turn the key to the On position. Don't try to start it. Leave the key on for ten minutes. After ten minutes, reach in and turn the key off. Then try to start the car. This usually will reset the security system. I hope this is helpful.

Jan 02, 2009 | 1999 Pontiac Grand Prix

1 Answer

Hey i have a 1999 grand prix the security system wont let me start the car. i was wondering how to un hook the security system so the car can be used agin?


There is no way to disconnect the security system on your car but there is a way to reset it. Roll down the drivers side window and close the door. (Stay out of the car, this is why you roll down the window) Reach in and turn the key to the On position. Don't try to start it. Leave the key on for ten minutes. After ten minutes, reach in and turn the key off. Then try to start the car. This usually will reset the security system. I hope this is helpful.

Jan 01, 2009 | 1999 Pontiac Grand Prix

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