2009 GMC Canyon Owners Manual PDF | Page 188

Theft-Deterrent Feature
Non-RDS Radios
THEFTLOCK
is designed to discourage theft of
your vehicle?s radio. The feature works automatically
by learning a portion of the Vehicle Identi?cation
Number (VIN). If the radio is moved to a different
vehicle, it does not operate and LOC displays.
With THEFTLOCK
activated, the radio does not
operate if stolen.
RDS Radios
THEFTLOCK
is designed to discourage theft of your
vehicle?s radio. The feature works automatically by
learning a portion of the Vehicle Identi?cation Number
(VIN). If the radio is moved to a different vehicle, it does
not operate and LOCKED displays.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK
is armed.
With THEFTLOCK
activated, the radio does not
operate if stolen.
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 signals only reach about 10 to 40 miles (16 to 65 km).
Although the radio has a built-in electronic circuit that
automatically works to reduce interference, some static
can occur, especially around tall buildings or hills,
causing the sound to fade in and out.
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2009 GMC Canyon Owners Manual Summary of Content

Theft-Deterrent FeatureNon-RDS RadiosTHEFTLOCKis designed to discourage theft ofyour vehicles radio. The feature works automaticallyby learning a portion of the Vehicle IdenticationNumber (VIN). If the radio is moved to a differentvehicle, it does not operate and LOC displays.With THEFTLOCKactivated, the radio does notoperate if stolen.RDS RadiosTHEFTLOCKis designed to discourage theft of yourvehicles radio. The feature works automatically bylearning a portion of the Vehicle Identication Number(VIN). If the radio is moved to a different vehicle, it doesnot operate and LOCKED displays.When the radio and vehicle are turned off, the blinkingred light indicates that THEFTLOCKis armed.With THEFTLOCKactivated, the radio does notoperate if stolen.Radio ReceptionFrequency interference and static can occur duringnormal radio reception if items such as cell phonechargers, vehicle convenience accessories, and externalelectronic devices are plugged into the accessory poweroutlet. If there is interference or static, unplug the itemfrom the accessory power outlet.AMThe range for most AM stations is greater than for FM,especially at night. The longer range can cause stationfrequencies to interfere with each other. For better radioreception, most AM radio stations boost the power levelsduring the day, and then reduce these levels during thenight. Static can also occur when things like storms andpower lines interfere with radio reception. When thishappens, try reducing the treble on the radio.FM StereoFM signals only reach about 10 to 40 miles (16 to 65 km).Although the radio has a built-in electronic circuit thatautomatically works to reduce interference, some staticcan occur, especially around tall buildings or hills,causing the sound to fade in and out.3-60