2014 Cadillac ATS Owner Manual - Page 48

2-18 Keys, Doors, and Windows The inclination sensor can set off the alarm if it senses movement of the vehicle, such as a change in vehicle orientation. How to Detect a Tamper Condition If K is pressed on the transmitter and the horn chirps three times, a previous alarm occurred while the system was armed. If the alarm has been activated, a message will appear on the DIC. See Security Messages on page 5-40. Immobilizer See Radio Frequency Statement on page 13-15. The security light, in the instrument cluster, comes on if there is a problem with arming or disarming the theft-deterrent system. The system has one or more RKE transmitters matched to an immobilizer control unit in the vehicle. Only a correctly matched RKE transmitter will start the vehicle. If the 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 engine does not start and the security light stays on, there is a problem with the system. Turn the ignition off and try again. Immobilizer Operation 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 vehicle is turned off. The immobilization system is disarmed when the pushbutton start is activated to enter the ACC/ ACCESSORY mode or the ON/ RUN/START mode and a valid transmitter is present in the vehicle. Power Sounder and Inclination Sensor In addition to the standard theft-deterrent system features, this system may also have a power sounder and inclination sensor. The power sounder provides an audible alarm which is distinct from the vehicle's horn. It has its own power source, and can sound an alarm if the vehicle's battery is compromised.