See also:

Switching on/off
The three red indicator lamps in the button indicate the heating level you have selected. If the battery voltage is too low, the seat heating may switch off. Driver's and front-passenger seat ...

DOT, Tire Identification Number (TIN)
U.S. tire regulations prescribe that every manufacturer of new tires or retreader has to imprint a TIN in or on the sidewall of each tire produced. The TIN is a unique identification number ...

Problems with the seat heating
The seat heating has switched itself off prematurely. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. Switch off electrical consumers ...