"Alarm system* > If the indicator lamp flashes for 10 seconds when the system is disarmed: an attempted entry has been detected in the period since the system was armed. Following triggering of an alarm, the indicator lamp will flash continuously. Avoiding unintentional alarms The tilt alarm sensor and interior motion sensor may be switched off at the same time. You can do this to prevent a false alarm from being triggered (in garages with elevator ramps, for instance), or when the vehicle is transported by trailer or train: Lock the vehicle twice (= setting the alarm). Press button 2 on the remote control twice in succession or lock the vehicle twice with the key. Refer to page 34. The indicator lamp lights up briefly and then flashes continuously. The tilt alarm sensor and the interior motion sensor are deactivated as long as the system is armed. Reset the alarm to reactivate the tilt sensor alarm system and the interior motion sensor. Interior motion sensor The transmitter and receiver of the interior motion sensor are located in a trim panel in the vehicle's roof. In order for the interior motion sensor to function properly, the windows and sliding/tilt sunroof must be completely closed. However, be sure to deactivate the interior motion sensor (see "Avoiding unintentional alarms") when you wish to leave the windows or sliding/tilt sunroof"