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Avalanche/Silverado 2011+

* Need 1 original working key

Works with the following models:

Avalanche 2011+
Silverado 2011+

1. Insert working key into ignition switch and turn ON.

2. Switch ignition to OFF and remove key.

3. Within 5 seconds insert new key to be programmed and switch ignition to ON.

* Maximum of 10 keys can be programmed into the system.

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