We had the car serviced for our first 5 month car service. After the service, the low tire pressure sign with warning beeps came on in about 40 miles and stayed on, so we assumed it was low tire pressure and maybe the service center didn't fix it. However, we got the tires checked and filled with air and reset the (!) symbol, and after another 70 miles of driving it again came on and stayed on. We had the tires checked to see if they were losing air, but they are at full air pressure according to the air pressure gauge, and there seems to be a fault in the sensor of the low tire pressure. Annoying as we would have to take the car back to the dealership to get the sensor fixed. Problem with the sensor.