The message could be displayed if the
stability system takes longer than usual
to complete
its diagnostic checks due to driving conditions.
If an engine or vehicle related problem
has been detected and the vehicle needs
service, the message will appear. See your
dealer.
The message will also appear if the vehicle is
shifted into 4LO.
The message will turn off as soon as the
conditions that caused the message to be
displayed are no longer present.
TIGHTEN GAS CAP
If the vehicle’s fuel cap is not tightened properly,
this message may display along with the check
engine light on the instrument panel cluster.
SeeMalfunction Indicator Lamp on page 236.
Reinstall the fuel cap fully. SeeFilling the Tank
on page 402. The diagnostic system can determine
if the fuel cap has been left off or improperly
installed. A loose or missing fuel cap will allow fuel
to evaporate into the atmosphere. A few driving
trips with the cap properly installed should turn this
light and message off.
TIRE LEARNING ACTIVE
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message will display when the
system is re-learning the tire positions on your
vehicle. SeeDIC Operation and Displays on
page 243for more information. The tire positions
must be re-learned after rotating the tires or
after replacing a tire or sensor. SeeTire Inspection
and Rotation on page 467,Tire Pressure Monitor
System on page 462, andIn ation - Tire
Pressure on page 460for more information.
TRACTION CONTROL OFF
If your vehicle has StabiliTrak®, this message
will display when the traction control system
is turned off. Adjust your driving accordingly.
SeeStabiliTrak
®System on page 330for
more information.
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The DSP settings available are:
Normal: Select this setting for normal mode,
this provides the best sound quality for all
seating positions.
Centerpoint™: Select this setting to enable
Bose Centerpoint™. Centerpoint™ signal
processing gives surround sound listening for
a CD, MP3, or a DVD stereo audio source.
Centerpoint™ delivers ve independent audio
channels from conventional stereo recordings.
Rear: Select this setting to adjust the audio for
the rear seat passengers to receive the best
possible sound quality.
Driver: Select this setting to adjust the audio
for the driver to receive the best possible
sound quality.
5.1 Surround: Select this setting to turn on
true 5.1 surround sound processing,
available for DVD-A or DVD-V sources that
were recorded in 5.1 Surround.
5.1 Surround + Normal — this mode is
optimized for all seating positions.
XM™ Satellite Radio Service
XM™ is a satellite radio service that is based in
the 48 contiguous United States and Canada.
XM™ offers a large variety of coast-to-coast
channels including music, news, sports, talk,
traffic/weather (U.S. subscribers), and children’s
programming. XM™ provides digital quality
audio and text information that includes song title
and artist name. A service fee is required in
order to receive the XM™ service. For more
information, contact XM™; In the U.S. at
www.xmradio.com or call 1-800-852-XMXM (9696)
or in Canada at www.xmradio.ca or call
1-877-GET-XMSR (438-9677).
4(Information):Press this button while in XM™
mode to retrieve three different categories of
information related to the current song or channel:
Artist, Song Title, Category or PTY. To view
this information, perform the following:
1. Press the tune/sel knob to enter the
main menu.
2. Turn the tune/sel knob until INFO (information)
appears on the display.
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Press the pushbutton for the desired PTY.
The radio may not go to all of the stations with
that music type when pressing the pushbutton, as
not all stations support PTYs.
AF (Alternate Frequency):Alternate frequency
allows the radio to switch to a stronger station with
the same program type.
To turn AF on or off, perform the following steps:
1. Press the tune/sel knob to enter the
main menu.
2. Turn the tune/sel knob until ALTERNATE
FREQ. appear on the display.
3. Press the tune/sel knob to select AF OFF,
AF ON, or AF REG (regular). When AF is
selected an X will appear in that box.
4. Press the BACK (F6) button to exit the
display. To return to the original display,
repeatedly press the BACK (F6) button or
wait for the display to time out.Radio Message
THEFTLOCK:This message is displayed when
the THEFTLOCK®system has been activated.
Take the vehicle to the dealer for service.
Radio Messages for XM™ Only
SeeXM Radio Messages on page 300later in this
section for further detail.
Using the Six-Disc CD Changer
The CD player can play the smaller 3 inch (8 cm)
single CDs with an adapter ring. Full-size CDs
and the smaller CDs are loaded in the same
manner.
If playing a CD-R, the sound quality may be
reduced due to CD-R quality, the method of
recording, the quality of the music that has been
recorded, and the way the CD-R has been
handled. There may be an increase in skipping,
difficulty in nding tracks, and/or difficulty in loading
and ejecting. If these problems occur, check the
bottom surface of the CD. If the surface of the CD
is damaged, such as cracked, broken, or
scratched, the CD will not play properly.
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XM Radio Messages
Radio Display Message Condition Action Required
XL (Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer’s request, by calling 1-800-852-XMXM (9696).
Updating Updating encryption code The encryption code in the receiver is being updated, and no
action is required. This process should take no longer than
30 seconds.
No Signl Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM™ signal. When the vehicle is
moved into an open area, the signal should return.
Loading Acquiring channel audio
(after 4 second delay)The audio system is acquiring and processing audio and text
data. No action is needed. This message should disappear
shortly.
Off Air Channel not in service This channel is not currently in service. Tune in to another
channel.
CH Unavl Channel no longer
availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of the presets,
choose another station for that preset button.
No Info Artist Name/Feature not
availableNo artist information is available at this time on this channel.
The system is working properly.
300
Radio Display Message Condition Action Required
No Info Song/Program Title not
availableNo song title information is available at this time on this
channel. The system is working properly.
No Info Category Name not
availableNo category information is available at this time on this
channel. The system is working properly.
NotFound No channel available for
the chosen categoryThere are no channels available for the selected category.
The system is working properly.
No Info No Text/Informational
message availableNo text or informational messages are available at this time
on this channel. The system is working properly.
XM Lock Theft lock active The XM™ receiver in your vehicle may have previously been
in another vehicle. For security purposes, XM™ receivers
cannot be swapped between vehicles. If this message is
received after having your vehicle serviced, check with your
GM dealer.
Radio ID Radio ID label (channel 0) If tuned to channel 0, this message will alternate with the
XM™ Radio 8 digit radio ID label. This label is needed to
activate the service.
Unknown Radio ID not known
(should only occur with
hardware failure)If this message is received when tuned to channel 0, there
may be a receiver fault. Consult with your dealer.
Check XM Hardware failure If this message does not clear within a short period of time,
the receiver may have a fault. Consult with your dealer.
301
+e−e(Volume):Press the plus or minus
button to increase or to decrease the radio volume.
¨(Seek):Press the seek arrow to go to the
next radio station while in AM, FM, or XM™
(if equipped). Press this button to go to the next
track or chapter while sourced to the DVD
slot. Press the button to go to the next disc while
sourced to a CD or DVD changer, if multiple
discs are loaded.
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.
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 tunnels may cause
loss of the XM™ signal for a period of time.
The radio may display No Signl to indicate
interference.
317
Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by
heavy braking — rather than keeping pace with
traffic. This is a mistake. The brakes may not have
time to cool between hard stops. The brakes
will wear out much faster if you do a lot of heavy
braking. If you keep pace with the traffic and
allow realistic following distances, you will
eliminate a lot of unnecessary braking. That means
better braking and longer brake life.
If your vehicle’s engine ever stops while you are
driving, brake normally but do not pump the
brakes. If you do, the pedal may get harder to
push down. If the engine stops, you will still have
some power brake assist. But you will use it
when you brake. Once the power assist is used
up, it may take longer to stop and the brake pedal
will be harder to push.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modi cations on page 397.Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake System
(ABS), an advanced electronic braking system that
will help prevent a braking skid.
When you start your engine and begin to drive
away, ABS will check itself. You may hear a
momentary motor or clicking noise while this test
is going on. This is normal.
If there is a problem
with ABS, this warning
light will stay on.
SeeAnti-Lock Brake
System Warning
Light on page 234.
Along with ABS, your vehicle has a Dynamic Rear
Proportioning (DRP) system. If there is a DRP
problem, both the brake and ABS warning lights
will come on accompanied by a 10-second
chime. The lights and chime will come on each
time the ignition is turned on until the problem is
repaired. See your dealer for service.
327
RSS also interacts with the tow/haul mode that,
when engaged, will provide additional control
of the shock absorbers. This additional control
results in better ride and handling characteristics
when the vehicle is loaded or towing a trailer. See
“Tow/Haul Mode” underTowing a Trailer on
page 380.
StabiliTrak®System
Your vehicle may be equipped with the
StabiliTrak®system which combines antilock
brake, traction and stability control systems and
helps the driver maintain directional control of the
vehicle in most driving conditions.
When you rst start your vehicle and begin to
drive away, the system performs several diagnostic
checks to ensure there are no problems. You
may hear or feel the system working. This
is normal and does not mean there is a problem
with your vehicle. The system should initialize
before the vehicle reaches 20 mph (32 km/h).
In some cases, it may take approximately
two miles of driving before the system initializes.If the system fails to turn on or activate, the
StabiliTrak
®light along with one of the following
messages will be displayed on the Driver
Information Center (DIC): TRACTION CONTROL
OFF, SERVICE TRACTION CONTROL,
STABILITRAK OFF, SERVICE STABILITRAK. If
these DIC messages appear, make sure the
StabiliTrak
®system has not been turned off using
the StabiliTrak®on/off button. Then turn the
steering wheel clockwise from the nine o’clock
position to the three o’clock position. If this clears
the message(s), your vehicle does not need
servicing. If this does not clear the message(s),
then turn the vehicle off, wait 15 seconds, and then
turn it back on again to reset the system. If any
of these messages still appear on the Driver
Information Center (DIC), your vehicle should be
taken in for service. For more information on
the DIC messages, seeDriver Information Center
(DIC) on page 243.
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