Toyota 2008 Prius Quick Reference Manual page 225

Adjusting the display
STEP 1
Press
STEP 2
Adjust the display as desired using
If you do not touch the screen for 20 seconds, the system will return
to the previous screen.
Contrast
Brightness
PRIUS_U_(L/O_0802)
.
ITY31P013
Weaker
Darker
3-1. Using the touch screen
and
Stronger
Brighter
3
197