Question about 2003 Buick Century

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My 2003 century will not crank up. security light want come on

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CHECK THE BFC FUSE.

Posted on May 07, 2010

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Posted on Jan 02, 2017

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Changed front turn signal on '03 Buick Century with car running. Car died and will not start. All lights on dash operate, headlights and radio operate. Cannot find a fuse that is blown.


Did you short something out ? Do you have a SECURITY light lit on the insturment cluster ? anti-theft system problem . Will not start how ? does the engine do anything when you turn the key to the start position ? A - crank no start or no crank - no start ? If the engine cranks an doesn't start , is there spark at plug wires ? Is there fuel ? An anti - theft problem will let the vehicle engine crank but not start an run , disables fuel injectors .

Mar 19, 2016 | 2003 Buick Century

1 Answer

I have a 2002 buick century and one of my relay


I have had a couple of problems with a 40 amp relay/fuse blow and the car not starting. Replaced and it started. Have replacement relays in all 3 of our Centurys, 2001 thru 2003 and have not have not had a problem since. If yours continues, likely have a short someplace.

Sep 27, 2014 | 2002 Buick Century

1 Answer

On a Buick Century what does it mean when the security light comes on while driving 2000 century?


In most cases the light comes on when there is a problem with the chip in the key or the sensor in the key lock. If the warning light comes on or blinks when you are cranking the engine, the car will not start.

Jun 12, 2013 | Cars & Trucks

1 Answer

Security light came on and dont know what the security light is or what kind of problem it might be


The warning light is telling the driver the security module is not recognizing the chip in the key.
Usually the car will not crank when the light is on.
Common issues are the chip in the key and the sensor in the lock cylinder.

Sep 20, 2012 | 1997 Buick Century

1 Answer

2003 Buick Century, when I turn the key to "on"


Ensure the safety of the battery first . its like you have bad battery . pleas let me know .

Nov 08, 2011 | 1998 Buick Century

1 Answer

I have a 2003 buick century and the service engine soon light came on as i was driving it what could be the problem pryor to that the anti lock light was on ans also the security light


service engine light refers to a computer related problem. you will need to access the computer link,retrieve the code that turned the light on, and follow a flow chart to diagnose

Feb 12, 2010 | 2003 Buick Century

1 Answer

2003 buick century security light staying on


The TDM in the security system (VATS/PassKey) is having problems, it's typical on those cars and it will get worse till the car wont start anymore. You can find a great write-up here: http://newrockies.ca , it was the only thing that saved my Park Avenue.

Jan 28, 2010 | 2003 Buick Century

1 Answer

Service engine soon light/security light


Probably the dealer will reset the system it for free.

Mar 25, 2009 | 2003 Buick Century

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