Black plate (24,1)Cadillac CTS/CTS-V Owner Manual (Mid-East) - 20121-24 Keys, Doors, and WindowsImmobilizer Operation(Key Access)This vehicle has a passivetheft-deterrent system.The system does not have to bemanually armed or disarmed.The vehicle is automaticallyimmobilized when the key isremoved from the ignition.The system is automaticallydisarmed when the vehicle isstarted with the correct key.The key uses a transponder thatmatches an immobilizer control unitin the vehicle and automaticallydisarms the system. The vehiclemay not start if the key is damaged.The security light, located in theinstrument panel cluster, comes onif there is a problem with arming ordisarming the theft-deterrentsystem.When trying to start the vehicle,the security light comes on brieflywhen the ignition is turned on.If the engine does not start and thesecurity light stays on, there is aproblem with the system. Turn theignition off and try again.If the engine still does not start andthe key appears to be undamagedor the light continues to stay on,try another key.If the engine still does not start withthe other key, the vehicle needsservice. If the vehicle does start,the first key may be damaged.See your dealer who can servicethe theft-deterrent system and havea new key made.It is possible for the theft-deterrentsystem decoder to learn thetransponder value of a new orreplacement key. Up to 10 keyscan be programmed for the vehicle.The following procedure is forprogramming additional keys only.To program a new key:1. Verify that the new keyhas 1 stamped on it.2. Insert the current key in theignition and start the engine.If the engine will not start,see your dealer for service.
