Key would be 1st to check and ignition switch
does it still start and run for you and if so consider having it check asap
have it scanned for codes
July, 26, 2013 AT 12:00 AM
I know this is about 4 years late to help with your issue but just in case anybody else is having this issue:
My 2003 Buick Century is doing the same thing. All the lights, radio, power seats/locks/windows and all worked fine. Car wouldn't crank, just a slow click and security light is on. At first I did this http://www.youtube.com/watch?v=UWfvEouMMtcand it fixed the problem but a few months later the problem came back and this time just jiggling the wires didn't help. Was told it would be $1100.00 to replace the VATS security system in the car.