Resetting the Tyre Pressure System After adjusting tyre pressures, the Citroën C3 Aircross tyre pressure monitoring system must be reset. To do this, press and hold the tyre pressure reset button down . Reinitialisation / reset is confirmed by a high-pitched audible signal. A low-pitched audible signal indicates that the reset operation has

The light doesn't go out after you top up the air pressure in the tyres.There is a reset button, that you should press, and that will reset the tyre pressure. Usually it is in between the front seats, about where the handbreak is. Find the button, press it and hold it down for a couple of seconds, and that will make the warning light go off.

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