Rick's Free Auto Repair Advice

Posts Tagged: anti-theft light

Security light on — GM vehicle

If you own a GM vehicle and have a security light on, read this article and the associated posts This is one in a series of articles. READ THIS FIRST GM made several different types of anti-theft systems. VATS, PassKey, and PassLock. The troubleshoot and reset procedures are different for each. PassLock seems to have the highest failure rate. So if you have a key WITHOUT a chip in it, chances are it’s a PassLock system. This article describes how to troublshoot and fix a PassLock system. But here are … Read More


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