Toyota 2013 Prius Owner's Manual page 286

2-2. Instrument cluster
Instrument panel light control
When the headlight switch is turned on while the surrounding area is
dark, the brightness of the instrument panel lights can be adjusted by
turning the dial.
Brightness of the instrument panel light
■
If the headlight switch is turned on while the surrounding area is dark, the
●
instrument panel lights will dim.
If a display is difficult to see, the dimming can be canceled by fully turning
the dial in the direction of
Turn the dial in the direction of
If the dial is fully turned in the direction of
●
ness of the instrument panel light can be darkened by one level.
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Brighter
Darker
.
in order to return the dimming.
in the daytime, the bright-