Question about 1998 Buick Riviera

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Won't start sometimes when Security light is lit

I been having a problem strating the car when the security light is lit. Normally it will start after the light goes out (3-4 minutes) after I initially try to start the car. Is this a common problem? Soes it have to do with the key of the ignition switch?

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Change the key out the key is going bad the key got a chip in it

Posted on Jul 21, 2009


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My cadillac 04 cts wont start. Thinks its the scurtiy feature. Any1 have a idea

Is the security light lit ? Car an pad lock symbol . If any of these are lit it is the anti-theft system . Does the engine crank over but won't start an run ? The anti-theft system will allow the engine to crank but not start , disables fuel injectors . If the anti-theft light is lit there are DTC'S diagnostic trouble codes stored in the theft deterrent module an or the ECM .
Does anything happen when you turn the key to the start position ?

Jun 24, 2016 | Cadillac Cars & Trucks

1 Answer

2003 buick lesabre problems

unhook battery 15 min hook back on lower driver window put key on ignition just bump the engine and wait until security lit stop flashing turn key off do it again 3 times once lit goes off crank engine an should start if lit wont go away or flash while cranking you have a security issue at switch or bcm now need a scanner capable to look at the security data

Dec 22, 2013 | Cars & Trucks

1 Answer

1998 sunfire want start

is the security light lit? try a different key to start.
if no start do the following.
try to start car then let go of key do not turn it off.
wait 15 min for security light to go out.
turn key off wait 5 seconds then try to start again.

the passkey system is not the best design, a little wear on the key and it won't start, if the tumbler wears out it won't start.

Oct 01, 2012 | Cars & Trucks

1 Answer

1997 Oldsmobile Regency won't start;security light, Happens occasinonally

This is an all too common problem on GM vehicles. The problem is in the antitheft system. When the system loses communication (like when a part breaks or fails) the system locks out the starter because it thinks it is getting stolen. The SECURITY light that is lit up proves this problem. That is the only function of the security light. Go to this link, there is a ton of info on this problem along with some tricks to maybe get you going, along with a very good permanent solution to an ongoing problem with these security antitheft systems.

Dec 09, 2011 | Oldsmobile Cars & Trucks

1 Answer


check the key if its worn down or damaged the truck wont recognize the key and security will activate if its worn will have to get a new key cut and if an electronic key will have to program

Oct 22, 2011 | 2006 Chevrolet Trailblazer

1 Answer

My Buick lasabre's engine was missing and light blue smoke coming out of tail-pipe. Now it won't start engine will turn over cut out and stall. Check engine light flashing, airbag light on and...

This link will help with the security light. Read the whole page carefully. The info is good and depending on your year, there might be a solution for you.

As far as the blue smoke, thats normally burning oil. You might have multiple problems. Id suggest reposting about the smoke. The link should help you with the security.

May 15, 2011 | Buick LeSabre Cars & Trucks

1 Answer

All my lights in my 1993 fleetwood brougham turn on, but when I try to start it, it don't start or crank.

Is the security light lit up on the dash when it wont start? If so, you have a VATS security issue. The system will actually turn off the starter if it feels that it is being stolen. It thinks its being stolen when the chip in the key doesnt communicate with ignition/lock cyclinder. Or if the security computer is going out. (it's called the TDM) If that light is on, its a dead give away that the vats is messed up. If no light, id try a good charge on the battery. Sometimes the lights will work fine but you dont have those cranking amps that you need to start.

Apr 15, 2011 | 1993 Cadillac Fleetwood

2 Answers

Security light on dash lit

i have this same problem. it has to do with the passlock security system that is factory installed. my system is cold weather sensitive. you go to start it and it will die. the security system then goes into stupid mode and its a 10 minute wait so the computer wont think your stealing your van ,then it will restart. sometimes it goes into another ten minutes if you try starting it to soon. security light flashing equals no start. solid security light equals ok to start. the system cuts power to the fuel pump. i live with it. it is managable but frusterating.

Jun 12, 2009 | 1999 Chevrolet Astro

1 Answer

SL2 ? 2000 starting problem

I had the same problem at one time and what the problem was is a short or an exposed wire connected to the starter which causes the voltage to fluctuate which in turn activates a security feature that stops the flow of fuel to the injectors. The car actually senses the possibility of a spark which could possibly ignite the fuel and be a fire hazard. If you turn the ignition on and off repeatedly after a certain amount of time the car will start and run fine. It is a very intermittent problem.

Jan 02, 2009 | 2000 Saturn SL

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