See also:

Convex mirror (passenger side)
WARNING Objects look smaller in a convex mirror and farther away than when viewed in a flat mirror. Do not use the convex mirror to judge the distance of vehicles behind you when changing lanes. ...

FM selection
Press the “FM” button when the radio is on to select FM1, FM2 or FM3 reception. Each brief press of the “FM” button changes the radio in the following sequence starting from the last FM radio ban ...

When there is an upward slope at the back
1) 3 feet (1 m) The distance on the screen looks farther than the actual distance. ...