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Posts Tagged: GM anti-theft systems

Fix PassLock

Diagnose, fix PassLock system 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 some more articles to help Click here to see the resetting procedure for PassLock Click … Read More

GM PassKey and PassLock overview

Diagnose problems with anti-theft systems in GM vehicles Read More

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