See also:

Deactivating HDC
Press the button again; the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...

FTM Flat Tire Monitor
The concept The system does not measure the actual inflation pressure in the tires. It detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while moving ...

Hydroplaning
On wet or slushy roads, a wedge of water can form between the tires and road surface. This phenomenon is referred to as hydroplaning. It is characterized by a partial or complete loss of contact ...