What does the "service vehicle" warning light mean and what do I do about it? on 2004 Saturn Ion

The light has just started coming on today. It stays on. If I need a iagnostic code how do I find it? Also, It has started vibrating when I apply my brakes. What is causing that?

by in Fountain, NC on October 12, 2012
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1 answer
ANSWER by , October 12, 2012
go to auto zone and they will scan for free, then post codes so we can adv