GMC Hummer H3 2008 Owner's Handbook Manual page 73

Instrumentation and Controls
The following pages describe the
sound system in your vehicle, and
how to get the best performance
from it.
The sound system can be used
only when the ignition is turned to
the ON or ACC position, or when
Retained Accessory Power is
active.
. . . 72
While your vehicle is parked, take
the time to familiarise yourself with
the system controls and operation,
and to set up various features.
That way, you will be able to use
the system with less effort and less
distraction from the road.
CAUTION
Giving extended attention to
entertainment tasks while driv-
ing will greatly increase the risk
of a collision that may cause
personal injury or death.
Road safety has absolute priori-
ty. Only operate this system if
the road and traffic conditions
allow you to do so. The driver's
full attention is always required
while driving.