16th Dec 2004, 23:07
ABS and Trac Off Lights come on in a pair, and will usually cause the Service Vehicle Soon light to come on. These vehicles are known for the front wheel speed sensors causing the three lights to come on. Their flaw is that they usually get dirty and have rust build up on them. If you clean up the rust, the light should go off. If that doesn't work, have it check out to find out which sensor is causing the problem. Only problem is that they have to be replaced with the entire hub assembly which will set you back a few bucks.
5th Aug 2009, 22:37
The service vehicle soon light in a 2000+ Grand Am has nothing to do with changing your oil, it has a "change engine oil" light for that. The SVS light is a body error, usually referring to a headlight or other light being out, however there are other things that cause this light to come on. Normal scan tools will not read these codes, so autozone can't help you. These codes must be read by a GM tech II scan tool. I have heard that some high end scanners may read body codes but I am not familiar with any that do.
If you have a SVS light on (not SES, ABS, or trac off) and all your lights are working, then you will probably have to take it to a dealer to have the body codes read, which will probably cost you $80 just to have them plug in the scanner. I am trying to find a list of all the things that could cause a SVS light but have not found one yet. Until I do, my SVS light will just have to stay on 'cause I'm not paying $80 when my car runs fine.