Hummer 2008 H2 - Manual (Page 127)

{ CAUTION:
Full-time four-wheel drive vehicles with the
transfer case in NEUTRAL will allow the
vehicle to roll, even if the shift lever is in
PARK (P). So, be sure the transfer case is in a
drive gear — not in NEUTRAL. Always set the
parking brake.
Follow the proper steps to be sure your vehicle will not
move. See Shifting Into PARK (P) on page 2-41.
If you are pulling a trailer, see Towing a Trailer on
page 4-55.
Mirrors
Automatic Dimming Rearview Mirror
with Compass and Temperature
Display
Your vehicle may have this mirror. When on, an
automatic dimming mirror will dim to the proper level to
minimize glare from lights behind you after dark.
The mirror also includes a dual display in the upper
right corner of the mirror with the compass reading and
the outside temperature.
Yb
: Briefly press this button to turn the display
on or off.
Your vehicle may also have a Rear Vision Camera.
See Rear Vision Camera on page 2-50.
2-45