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What is a VATS key?

key VATS
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What is a VATS key?

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VATS stands for Vehicle Anti-Theft System and has a resistor embedded inside the key blade. VATS keys are used exclusively for GM makes & models and each resistor has one of fifteen possible values. Sometimes the resistors are referred to as “pellets” or “chips”. These keys do not require a cloning or programming tool, only a reader to determine the resistor value. There are 2 types of VATS keys, single sided and double sided.

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