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Setting the Tone
(Bass/Midrange/Treble)
BASS/MID/TREB (Bass, Midrange, or Treble):
To adjust bass, midrange, or treble, press the tune
knob until the tone control labels display. Continue
pressing to highlight the desired label, or press the
pushbutton positioned under the desired label.
Turn the tune knob clockwise or counterclockwise
to adjust the highlighted setting. The highlighted
setting can also be adjusted by pressing either the
SEEK, FWD (forward) or REV (reverse) button
until the desired levels are obtained. If a station’s
frequency is weak, or has static, decrease the
treble.
To quickly adjust bass, midrange, or treble to the
middle position, press the pushbutton positioned
under the BASS, MID (midrange), or TREB (treble)
label for more than two seconds. A beep sounds
and the level adjusts to the middle position.
To quickly adjust all tone and speaker controls to
the middle position, press the tune knob for more
than two seconds until a beep sounds.
EQ (Equalization):Press this button to select
preset equalization settings.To return to the manual mode, press the EQ
button until Manual displays or start to manually
adjust the bass, midrange, or treble by pressing
the tune knob.
Adjusting the Speakers (Balance/Fade)
BAL/FADE (Balance/Fade):To adjust balance or
fade, press the tune knob until the speaker control
labels display. Continue pressing to highlight the
desired label, or press the pushbutton positioned
under the desired label. Turn the tune knob
clockwise or counterclockwise to adjust the
highlighted setting. The highlighted setting can also
be adjusted by pressing either the SEEK, FWD
(forward), or REV (reverse) button until the desired
levels are obtained.
To quickly adjust balance or fade to the middle
position, press the pushbutton positioned under
the BAL or FADE label for more than two seconds.
A beep sounds and the level adjusts to the middle
position.
To quickly adjust all speaker and tone controls to
the middle position, press the tune knob for more
than two seconds until a beep sounds.
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Page 269 of 496

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).
XM 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 XM Signal Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM™ signal. When you move
into an open area, the signal should return.
Loading XM Acquiring channel audio
(after four second delay)The audio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
Channel Off Air Channel not in service This channel is not currently in service. Tune to another
channel.
Channel Unavail 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 Artist Info Artist Name/Feature
not availableNo artist information is available at this time on this channel.
The system is working properly.
No Title Info Song/Program
Title not availableNo song title information is available at this time on this
channel. The system is working properly.
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Page 340 of 496

If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will
provide easier cold starting and better protection
for the engine at extremely low temperatures.
Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet GM
Standard GM6094M are all you will need for good
performance and engine protection.
Engine Oil Life System
When to Change Engine Oil
Your vehicle has a computer system that lets you
know when to change the engine oil and lter.
This is based on engine revolutions and engine
temperature, and not on mileage. Based on driving
conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oil
life system to work properly, you must reset the
system every time the oil is changed.When the system has calculated that oil life has
been diminished, it will indicate that an oil change
is necessary. A CHANGE ENGINE OIL SOON
message will come on. SeeDIC Warnings
and Messages on page 221. Change your oil as
soon as possible within the next 600 miles
(1 000 km). It is possible that, if you are driving
under the best conditions, the oil life system may
not indicate that an oil change is necessary for
over a year. However, your engine oil and
lter must be changed at least once a year and at
this time the system must be reset. Your dealer
has GM-trained service people who will perform
this work using genuine GM parts and reset
the system. It is also important to check your oil
regularly and keep it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km)
since your last oil change. Remember to reset the
oil life system whenever the oil is changed.
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