Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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You will need to program this key as it is a transponder key which I am sure you are aware of. Here is the procedure you will need to complete to make your truck operable.
This 30-minute learn procedure should be used when all vehicle keys are desired to be replaced or reprogrammed. This procedure will erase all previously learned vehicle keys from the TDM. Once the 30-minute learn procedure has been completed, any remaining vehicle keys may be programmed using the Adding Keys procedure to ensure their continued functionality.
Important: The TDM learns the key transponder information upon the ignition switch transition from OFF to ON. You must turn the ignition OFF before attempting to start the vehicle.