See also:

The concept
The tire inflation pressure is measured in the four mounted tires. The system notifies you if there is a significant loss of pressure in one or more tires. ...

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...

Setting
Pull the switch. The LED lights up. The indicator lamp lights up red. The parking brake is set. Lower lamp: indicator lamp in Canadian models Set the parking brake and further secure ...