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Posts Tagged: passkey versus passlock

PassKey versus PassLock

What’s the difference between Passkey versus Passlock on GM vehicles The GM immobilizer systems have gone through several iterations. Most people want to know the difference between passkey versus passlock. Tt comes down to whether the system identifies the key or a unique identifier in the lock cylinder. Plus, GM changed the names of the systems based on where the decoding module is located. Here’s how they progressed First Generation GM Immobilizer Vehicle Anti Theft System (VATS) VATS uses a key with an embedded resistor chip/pellet. When you insert the … Read More

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