It can occur that the tire pressure light turns on during a ride. What you can do is, pump up the tire when you go to the gas station to fuel up the car. The tires should be at 2.2 bar. You can also read about this in the car manuals.
Go to the glove compartment to reset the tire pressure. Hold the reset button ‘SET’ down until the warning light flashes slowly three times and fades out. The tire pressure has been reset. You can continue driving. 😃