GMC 2006 Envoy Owner's Manual page 211

Keeping your mind on the drive is important for safe
driving. For more information, see Defensive Driving on
page 4-2.
Here are some ways in which you can help avoid
distraction while driving.
While your vehicle is parked:
•
Familiarize yourself with all of its controls.
•
Familiarize yourself with its operation.
•
Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering wheel
controls if the vehicle has them.
Notice: Before adding any sound equipment to
your vehicle, such as an audio system, CD player,
CB radio, mobile telephone, or two-way radio, make
sure that it can be added by checking with your
dealer. Also, check federal rules covering mobile
radio and telephone units. If sound equipment can
be added, it is very important to do it properly.
Added sound equipment may interfere with
the operation of your vehicle's engine, radio, or
other systems, and even damage them. Your
vehicle's systems may interfere with the operation
of sound equipment that has been added.
Notice: The chime signals related to safety belts,
parking brake, and other functions of your vehicle
operate through the radio/entertainment system.
If that equipment is replaced or additional equipment
is added to your vehicle, the chimes may not
work. Make sure that replacement or additional
equipment is compatible with your vehicle before
installing it. See Accessories and Modifications
on page 5-3.
Your vehicle has a feature called Retained Accessory
Power (RAP). With RAP, the audio system can be
played even after the ignition is turned off. See Retained
Accessory Power (RAP) on page 2-20 for more
information.
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