5
Automatic Dimming Rearview
Mirror with Compass and
Temperature Display
When on, the mirror automatically
dims to the proper level to minimize
glare from lights behind you when it’s
dark outside.
Turn the self-dimming function on
or off
• Briefly press the TEMP button for
eight seconds.
Turn the outside temperature
displays and compass readings on
or off
• Press the TEMP or COMP button.
Display temperature
• Press the TEMP button and hold for
four seconds to toggle between °C
and °F. Once the desired °C or °F is
displayed, release the button. Wait
four seconds and the temperature will
be displayed.
See Section 2 of your Owner Manual.
OnStar
®
Communication System
Use the dash-mounted OnStar
®
Communications system
• Press to connect to an OnStar
®
Advisor.
• Press the white dot to answer or end
a call from the OnStar
®
Center.
• Press in an emergency to
connect to an OnStar
®
Advisor who
can contact the nearest emergency
services provider.
See Section 2 of your Owner Manual.
Hummer2004_final.qxd 9/5/03 11:19 AM Page 5
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