See also:

Tread wear indicator
The tires have wear indicator strips running across or parallel to the tread. The letters TWI are printed on the side of the tire. When approximately 1/16" (1.6 mm) is left on the tread, th ...

Tire pressure monitoring light
The tire pressure monitoring system uses sensors mounted in the tire valves to check inflation pressure levels. When the vehicle is moving at a speed of approximately 20 mph (30 km/h) or faster, ...

Disc eject
For reasons of traffic safety, an ejected disc must be removed within 12 seconds or it will be automatically drawn back into the slot. ...