Hummer 2009 H2 - Manual (Page 233)

XM™ Satellite Radio Service
XM is a satellite radio service that is based in the
48 contiguous United States and 10 Canadian provinces.
XM Satellite Radio has a wide variety of programming
and commercial-free music, coast-to-coast, and in
digital-quality sound. During your trial or when you
subscribe, you will get unlimited access to XM Radio
Online for when you are not in the vehicle. A service
fee is required to receive the XM service. For more
information, contact XM at xmradio.com or call
1-800-929-2100 in the U.S. and xmradio.ca or
call 1-877-438-9677 in Canada.
Playing the Radio
O (Power/Volume): Press this knob to turn the system
on and off.
Turn this (volume) knob clockwise or counterclockwise
to increase or decrease the volume.
Speed Compensated Volume (SCV) (Radio with
Six-Disc CD Player): Radios with Speed Compensated
Volume (SCV) automatically adjusts the radio volume
to compensate for road and wind noise as the vehicle
speeds up or slows down. The volume level should
be consistent while driving.
To activate SCV:
1. Set the radio volume to the desired level.
2. Press the MENU button to display the radio
setup menu.
3. Press the pushbutton under the AUTO VOLUM
(automatic volume) label on the radio displays.
4. Press the pushbutton under the desired Speed
Compensated Volume setting (OFF, Low, Med,
or High) to select the level of radio volume
compensation. The display times out after
approximately 10 seconds. Each higher setting
increases the audio volume to compensate for
faster vehicle speeds.
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