Honda 2009 Pilot Owner's Manual page 336

Rear Entertainment System
Aspect Ratio
You can set the screen mode to
these settings:
Normal
Wide
Zoom
Full
330
Select the ''Aspect Ratio'' by pressing
the or button, then press
the ENT button.
The selectable setting menu is
displayed, and the current setting is
highlighted in blue.
Select the desired setting by
pressing the or button,
then press the ENT button.