Important: To confirm if the vehicle has an immobilzer system, please check the vehicle SPID label or the VIN in GMVIS for the presence of RPO BAH (engine immobilizer).
Important: Turn ON the ignition before installing in the scan tool. Failure to connect in this procedure may cause communication errors and the programming procedure will not complete. Any keys that are not programmed at this time will no longer function.
Important: Try to obtain all the keys. At least 2 keys are necessary to successfully program the immobilizer system.
A maximum of 5 keys may be programmed.
Use these procedures after replacing:
• | Theft deterrent control module (Immobilizer) |
• | Engine control module (ECM) |
• | Any key |