Radio Reception; Fixed Mast Antenna; Xm™ Satellite Radio Antenna System - Pontiac 2009 Vibe Owner's Manual

6-14 Infotainment

Radio Reception

Frequency interference and static
can occur during normal radio
reception if items such as cell phone
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
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 the radio.
FM Stereo
FM stereo gives the best sound,
but FM signals only reach 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.
XM™ Satellite Radio Service
XM Satellite Radio Service gives
digital radio reception from
coast-to-coast in the 48 contiguous
United States, and in Canada. Just
as with FM, tall buildings or hills can
interfere with satellite radio signals,
causing the sound to fade in and out.
In addition, traveling or standing
under heavy foliage, bridges,
garages, or through tunnels could
cause loss of the XM signal for a
period of time. The radio may
display NO XM SIGNAL to indicate
interference.

Fixed Mast Antenna

The fixed mast antenna can
withstand most car washes without
being damaged. If the mast should
ever become slightly bent, straighten
it out by hand. If the mast is badly
bent, replace it.
Check occasionally to make sure
the mast is still tightened to the
antenna base located on the roof
of the vehicle. If tightening is
required, tighten by hand.
XM™ Satellite Radio
Antenna System
The XM Satellite Radio antenna is
located on the roof of the vehicle.
Keep this antenna clear of snow and
ice build up for clear radio reception.
If the vehicle has a sunroof, the
performance of the XM system may
be affected if the sunroof is open.
Loading items onto the roof of
the vehicle can interfere with the
performance of the XM system.
Make sure the XM Satellite Radio
antenna is not obstructed.