Navigation/Radio System; Theft-Deterrent Feature; Radio Reception - Hummer 2006 H3 Owner's Manual

Navigation/Radio System

Your vehicle may have a navigation radio system that
includes Radio Data System (RDS) with Program
Type (PTY) selections that will seek out the kind of
music you want to listen to and XM™ Satellite Radio
Service capabilities (if equipped). The radio can
also communicate with the navigation system to
broadcast announcements on traffic, weather, and
emergency alert communications. For information on
how to use this system, see the "Navigation System"
manual.

Theft-Deterrent Feature

®
THEFTLOCK is designed to discourage theft of your
vehicle's radio. The feature works automatically by
learning a portion of the Vehicle Identification Number
(VIN). If the radio is moved to a different vehicle, it
will not operate and LOCKED will appear on the display.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK
®
With THEFTLOCK activated, the radio will not operate
if stolen.
3-76
®
is armed.

Radio Reception

You may experience frequency interference and static
during normal radio reception if items such as cellphone
chargers, vehicle convenience accessories, and
external electronic devices are plugged into the
accessory power outlet. If there is interference or static,
unplug the item from the accessory power outlet.
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range can cause
station frequencies to interfere with each other. For
better radio reception, most AM radio stations will boost
the power levels during the day, and then reduce
these levels during the night. Static can also occur when
things like storms and power lines interfere with radio
reception. When this happens, try reducing the treble on
your radio.
FM Stereo
FM stereo will give the best sound, but FM signals will
reach only about 10 to 40 miles (16 to 65 km). Tall
buildings or hills can interfere with FM signals, causing
the sound to fade in and out.