GMC 2013 Acadia/Acadia Denali Owner's Manual page 143

Brightness: Turn the knob on the
HUD control clockwise or
counterclockwise to brighten or dim
the display.
(Up) or (Down): Press the up
or down arrows to center the HUD
image in your view. The HUD image
can only be adjusted up and down,
not side to side.
(Page): Press this button to
select the display formats. Release
the page button when the format
number with the desired display is
shown on the HUD.
The three formats are:
English
Metric
Format One: This display gives the
speedometer reading (in English or
metric units), turn signal indication,
high-beam indication, transmission
positions, and outside air
temperature.
English
Instruments and Controls
Format Two: This display includes
the information in Format One
without the transmission information
and the outside air temperature.
English
5-29
Metric