Question about 2002 Buick Regal

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If i replace the ignition switch in a 2002 buick regal do the keys have to be reprogramed

Sometimes when I try to start the car all the dash lights flicker, it has died when using turn signals, it has died when driving on the expressway. I have read several blogs and they all say my ignition switch needs replaced. if I replace the ignition switch do my key have to be reprogramed or is that only if I replace the ignition lock cylinder

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Bill Boyd

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  • Buick Master
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Normally only if you replace the cylinder barrel
the immobilizer section is at the end of the barrel normally under the trim and the switch is a separate unit to the barrel

Posted on Oct 11, 2017


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  • 85239 Answers

SOURCE: How do I replace the ignition (keys's lost) in the steering?

did u get a key that was the proper code? these keys have a little piece of resistive wire embedded in the key, does the key u had made have that? if not it will not work, u can't just get a key cut, they have numbers to select the proper resistance value for the key to work with your security system.

Posted on May 07, 2009


Pete MacSparran

  • 721 Answers

SOURCE: 1991 buick park ave wont start

Typically,fusible links protect everything but the starter. I'd check them anyway & they're down at the starter. Also,make sure the engine isn't siezed,3.8's freeze all the time. Yes,that would mean the engine is toast. Also the transmission has a clutch in it & it could be locked in the on position. You can unplug the 4 pin connector in front on the trans & see if that makes a difference. Write back if you need more help

Posted on Jun 21, 2009


  • 7 Answers

SOURCE: 99 buick regal won't start

Hello, the Regal seems to have that problem. Insert your key in the ignition and turn it but do not turn the car on, make sure you here the fuel pump kick in, then at the end of you r fuel rail there should be a cap, remove it, use a very thin screw driver and push that part in, Be careful it's going to squirt gas, that's a good sign. If it does not, check your fuel filter. And last, if nothing above described works first check your negative wire on your fuel pump, second your injectors, they might be clogged.
Best of luck, God Bless.

ECSracing Team

Posted on Aug 14, 2009


  • 42 Answers

SOURCE: 2000 Buick regal, ignition /

It sounds like the anti theft lock is engaged. There should be 2 white wires hooked to the ignition. they are very easy to break in the halo surrounding the key. They measure resistance in the key itself. there should also be a plastic piece just behind the lock cylinder with a silver rod coming out of the bottom of it. That is the anti theft. If the wires are broke in the halo, it will not allow the rod to punch up and the key to turn. Take a ohm meter and test both wires. if with the key in you get no resistance measured, your halo is broken. You have to replace the lock cylinder and key. Then take it to the dealer to have the computer reset to recognize the new resistance setting.

Posted on Sep 11, 2010

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Jackie Miles

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SOURCE: 2000 Buick Century wont start, new ignition

Make sure all the fuses are good. Check the fuse panel inside the car and the fuse box under the hood. Find the starter relay and swap it with another one and see if the starter works. If that didn't make any difference, try this:Make sure the transmission is in park, emergency brake on. Turn the ignition key on. Find where the positive battery cable is attached to the starter. Attach one end of a jumper cable to the connection. Take the other end of the jumper cable and ground it against the starter solenoid where the wires are connected. This should start the car, or at least make the starter work.If the car starts but won't stay running, then it is probably the security system at fault. If you went to a dealership for the new switch and keys, you probably paid quite a bit for it.There is a cheaper way to fix it, and it will last forever. It's a bypass system from a company called New Rockies. I think you should check out this website:

Posted on Jan 02, 2011

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2000 buick regal key gets stuck and car will not turn over

The stuck key could be the following. There is a cable that runs from the gear shifter to the ignition switch. Jiggle the shifter in park and simultaneously gently move the key to off and pull the key out. The key in and not fully turned to off will drain the battery.

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My 2002 buick regal cranks when it wants to i can try to crank it and the car will not make a sound but after several attemps the car will sometimes start

could be the starter solenoid is going south or also an ignition could be a culprit. try to duplicate the condition and gently tap the side of the starter with a hammer while someone else holds the key over in the start position. be careful while doing this. if the starter turns when you tap it, the brushes inside the starter itself are gone and the starter needs replacing.

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2002 Buick Regal flashing dash lights / will not start consistantly / will not come out of the park position

ck brake pedal switch it tells shifter to unlock if switch good then shift interlock at shifter if good then ck at key switch for key lock out. is most times brake pedal switch. the security system could be either the bcm or the control module going out a lot of tests are required to diag. the security system.and some times all parts almost get replaced.

Aug 05, 2012 | 2002 Buick Regal

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Security light is on dash car will not turn over I have replaced ignition switch

pass lock sensor is bad,turn key on wait till light goes out or flashes the start it,takes about ten minutes

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When you turn the key on , not to start the car just turning the key foward all the lights flash repeatedly, on the dash of my 2003 Buick Regal. What could cause that? It might take 5 minutes or 10 minutes...

Ignition switch is bad and needs to be replaced. My 03 Regal did the same thing and playing with the hazzard swith would make it stop. New ignition switch fixed it.

Jul 13, 2010 | 2003 Buick Regal

3 Answers

My '98 Buick Regal won't start randomly but fires right up when it does. randomly when you turn the key to start it does absolutely nothing. No warning lights or clicks - absolutely nothing. All the...

It dosent need a new steering column. But It very well may need an ingnition position sensor. It is a sensor that identifies what position the key is in. Obviously if it was malfunctioning it would not recognize you have the key in the start position, and when it does it suddenly fires. I had a 95 Regal that had the same problem, not a cheap one but pretty necessary.

Dec 12, 2009 | 1998 Buick Regal

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light switch is probably defective - more power is being used on hi-beams causing breakdown in switch - get replaced

Sep 18, 2009 | 2001 Buick Regal

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Car wont start possible ignition switch problem

Im assuming you're saying it will NOT start. If thats the case but the engine turns over then there could be three possible problems. Number one is no fuel or fuel pressure, number two, no spark from your spark plugs or number 3- bad ignition module. if these are good, then it could be more severe such as bad computer, bad crank shaft any case, checking for fuel problems or ignition problems is the first thing you should do.....most likely, it's one of those 2 faults.......good luck

Jul 05, 2009 | 2000 Buick Regal

4 Answers

2002 buick regal won't start

I have a 2003 buick regal. I found a small cover or tab about 3/4 of an inch square under the bottom of the steering column cover. If you remove that tab and take a thin object , like a phillips screwdriver and shove it up that hole it will release the ignition so you can turn it back and pull out your key. What a great discovery!

May 06, 2009 | 2002 Buick Regal

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Car stalls 2000 buick regal

check for short circuit , ground fault, ignition switch problem.
check wires on ignition for damage, burns from short. if car starts occasionally and gives problem it will get worse, not safe

Jun 07, 2008 | 2002 Buick Regal

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