Once in a while, while driving Liana, there is this strange alarm sound which starts all of a sudden, without any reason that I can find. It's a sharp beep beep sound of 2 sec play and one second pause in between, and beeps continuously. This is quite different, and more shrill than the alarm which sounds when door is open and ignition is turned on. I have absolutely no idea what this alarm is for. When I turn off the switch and start again, the sound is gone. Temp gauge is below half the scale, and sometimes it starts within 5 mins of driving. It's not for seat belts as well. I have checked that and I believe there is no such feature in Liana.
However, only this evening when I was driving, this sound came on for more than 3-4 times - when I would turn off engine and start again, it would go away but then come back after sometime. And after 3-4 times, the alarm got faster in pace next time, the interval reduced; just like in games or movies, when the time bomb is about to go off, the beep beep sound becomes faster, lol.
Can somebody help me out in identifying why this beep beep is there and how to prevent it.