See also:

Vehicle symbols
There are some of the symbols you may see on your vehicle. For warning and indicator lights, refer to “Warning and indicator lights” F19. ...

ON
This is the normal operating position after the engine is started. ...

Adverse safety consequences of under-inflation
Driving at high speeds with excessively low tire pressures can cause the tires to flex severely and to rapidly become hot. A sharp increase in temperature could cause tread separation, and failure ...