2013 Cadillac Escalade Owner Manual - Page 55

Keys, Doors, and Windows 6. Repeat Steps 1 through 4 if additional keys are to be programmed. Do not leave the key or device that disarms or deactivates the theft deterrent system in the vehicle. 2-25 If the engine does not start and the security light stays on, there is a problem with the system. Turn the ignition control knob off and try again. The security light in the instrument cluster, comes on if there is a problem with arming or disarming the theft-deterrent system. One or more keyless access transmitters can be matched to the vehicle's immobilizer control unit. Only a correctly matched keyless access transmitter will start the vehicle. If the keyless access transmitter is ever damaged, you may not be able to start your vehicle. When trying to start the vehicle, the security light comes on briefly when the ignition is turned on. If the ignition control knob does not turn, and the keyless access transmitter appears to be undamaged, try another keyless access transmitter. Or, you may try placing the transmitter in the transmitter pocket located in the center console. See "Electronic Key Not Detected" under Key and Lock Messages on page 5‑36. If the ignition control knob still does not rotate with the other transmitter, the vehicle needs service. If the ignition control knob does rotate, the first transmitter may be faulty. See your dealer who can service the theft-deterrent system and have a new keyless access transmitter programmed to the vehicle. Immobilizer Operation (Keyless Access) This vehicle has a passive theft-deterrent system. The system does not have to be manually armed or disarmed. The vehicle is automatically immobilized when the ignition control knob is turned to LOCK/OFF. The immobilization system is disarmed when the ignition control knob is pushed in and a valid transmitter is found in the vehicle.