Hummer 2005 H2 - Manual (Page 117)

{ CAUTION:
All-wheel drive vehicles with the transfer case in
NEUTRAL will allow the vehicle to roll, even if
your shift lever is in PARK (P). So, be sure the
transfer case is in a drive gear — not in
NEUTRAL. Always set your parking brake.
Follow the proper steps to be sure your vehicle will not
move. See Shifting Into Park (P) on page 2-37.
If you are pulling a trailer, see Towing a Trailer on
page 4-68.
Mirrors
Automatic Dimming Rearview Mirror
with OnStar
® , Compass and
Temperature Display
For information on the OnStar ® system see OnStar ®
System on page 2-48 or consult the OnStar ® manual.
The automatic dimming mirror dims to the proper level to
minimize glare from lights behind you after dark.
The mirror includes a compass reading and outside
temperature display in the upper right corner of
the mirror. The dual display can be turned on or off by
pressing either the TEMP or the COMP button.
Temperature Display
The temperature can be displayed by pressing the
TEMP button. Press the TEMP button once briefly to
toggle the temperature reading on and off. To alternate
the temperature reading between Fahrenheit and
Celsius, press and hold the TEMP button for
approximately four seconds until the display blinks F
and C. Press and release the TEMP button to toggle
between the Fahrenheit and Celsius readings. After
about four seconds of inactivity, the display will
stop blinking and display the last selection made.
If an abnormal temperature reading is displayed for an
extended period of time (30 minutes), see your GM
dealer. Under certain circumstances, a delay in updating
the temperature is normal.
Automatic Dimming Mirror Operation
Press and hold the TEMP button for about eight seconds
to turn the automatic dimming feature on or off. The
indicator light to the right of the TEMP button will turn on
or off to show when the automatic dimming feature is
activated. Once the mirror is turned off, it will remain off
until it is turned back on, or until the vehicle is restarted.
2-41