See also:

Speed limit
Display of a speed limit which, when reached, should cause a warning to be issued. Renewed warning if the vehicle speed drops below the set speed limit once by at least 3 mph/ 5 km/h. Displayi ...

DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purpose. ...

Distance to back of head: electrical head restraints
The head restraint is automatically repositioned when the shoulder support is adjusted. ...