Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
does the security or theft light flash when you try to start it
you will need to a relearn on the security system
30 Minute Learn Procedure
Important: The vehicle learns the Passlock Sensor Data Code and/or password XXXXX the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.