For any questions about the
operation of the navigation
system or the update process,
contact the GM Nav Disc Center
toll-free phone number,
1-877-NAV-DISC (1-877-628-3472)
or go to the center’s website,
www.gmnavdisc.com. For any
updates or replacements, call the
GM Nav Disc Center or order a
new disc online. Have the Vehicle
Identification Number (VIN) available
when ordering to ensure the
correct and most up-to-date DVD
map disc for the vehicle is sent.
See “Vehicle Identification Number
(VIN)” in the Index of the vehicle’s
owner manual for more information.
After receiving the updated disc,
replace the old disc in the navigation
system. See “Installing the DVD
Map Disc” and “Ejecting the
DVD Map Disc” under Maps on
page 47. Dispose of the old disc
to avoid confusion about which disc
is the most current.
Database Coverage
Explanations
Coverage area depends upon the
map detail available. Some areas
have greater map detail than others.
The navigation system works only
as well as the information provided
on the map disc. See Ordering
Map DVDs on page 83 on how to
obtain updated map information.
Voice Recognition
The navigation system’s voice
recognition allows for hands-free
operation of the navigation system,
audio system, and OnStar
®
features. The DVD map disc must
be installed in the navigation system
for voice recognition to work. See
“Installing the DVD Map Disc” under
Maps on page 47. Voice recognition
can be used when the ignition is
on or when Retained Accessory
Power (RAP) is active. See
“Retained Accessory Power (RAP)”
in the Index of your vehicle’s
owner manual and for more
information.
To use voice recognition, do the
following:
1. Push and hold the SRCE (source)
steering wheel control until you
hear a beep. The audio system,
if on, will mute.
2. Clearly state one of the
commands listed on the
following pages.
84
Infotainment System
Summary of Contents for 2010 Full-Size Truck
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