
DAY:This setting leaves the screen in day mode.
Day mode is best suited for daylight conditions.
NIGHT:This setting leaves the screen in night mode.
Night mode is best suited for nighttime conditions.
SCREEN OFF:Touch SCREEN OFF to turn off the
screen. Press any hard key to turn the screen back on.
SET:Touch SET to save the choices and exit the
CLOCK ADJUST menu.
Language
The vehicle has been set for the English language.
Change the language, through the Driver Information
Center (DIC). SeeDriver Information Center (DIC)
on page 3-57for more information.
If the language is changed from English, a majority of the
voice guidance prompts and screen text changes to the
selected language. Remember, the menu screens will not
match word-for-word as they appear in this manual.
Playing the Radio
PWR-VOL (Power-Volume):Press to turn the audio
and navigation systems on and off. Turn the knob
to increase or decrease the volume to the audio system.
«TUNE/SEEKª:Press the up or down arrow to
go to the next or previous station and stay there.BAND:Press this key to switch between AM, FM1,
FM2, XM1, XM 2, or WX, if equipped. While on a map
screen and this key is pressed, the screen will not
change but the audio source will.
Finding a Station
Press the BAND key to switch between AM, FM1, FM2,
XM1, XM2, or WX, if equipped. Touch the desired audio
source to select it.FM1 audio source shown, other sources similar
4-56

No CAT Info:No category information is available.
The system is working properly.
CAT Not Found:There are no channels available for
the selected category. The system is working properly.
No Information:No text or informational messages
are available. The system is working properly.
XM Theftlocked:The XM™ receiver 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 dealer/retailer.
XM Radio ID:If tuned to channel 0, this message
will alternate with the XM™ Radio eight digit radio ID
label. This label is needed to activate the service.
Unknown:If this message is received when tuned to
channel 0, there may be a receiver fault. Consult
with your dealer/retailer.
Check XM Receiver:If this message does not clear
within a short period of time, the receiver may have
a fault. Consult with your dealer/retailer.
XM Not Available:If this message does not clear
within a short period of time, the receiver could have a
fault. Consult with your dealer/retailer.Six-Disc CD Changer
With the compact disc changer, up to six normal size
discs can be played continuously.
When the radio is turned on, the changer begins
checking for discs. This continues for up to one and a
half minutes, depending on the number of discs loaded.
Noise might be heard, but this is normal. The CD
changer is initializing.
Press the CD hard key to access the six-disc CD
changer screen. You can also use the system’s DVD
player for single CD play once the map DVD is removed.
SeeCD/DVD Player on page 4-68for more information.
If no CD is loaded in the CD/DVD Player and the CD
hard key is pressed, the message “No CD Loaded”
displays.
4-65

Once the CD changer screen is accessed, you can
select one of the numbered buttons to go from
one compact disc to another among those loaded in
the CD changer and use the arrows to rewind or
fast forward through the disc selected.
The following features are also available from this
screen:
LOAD
EJECT
SCAN THE DISCS or SCAN THE TRACKS
and RANDOM ALL or RANDOM DISC.The numbered buttons (1 through 6) represent the order
of the discs loaded in the changer. If there are only
two CDs loaded, buttons 1 and 2 will only be available
to choose from.
LOAD:Touch once each time a CD is loaded into
the changer. It may take up to 10 seconds for the
changer to accept the CD into the slot depending on the
changer initializing. Repeat this procedure for loading
up to six discs. Press and hold the LOAD button until a
beep is heard to put the changer in LOAD ALL mode.
Once the Insert CD message is displayed, you can load
all six discs, one after the other.
r(Play):Touch to begin playing a CD.
RANDOM DISC:Touch to hear the tracks in random,
rather than sequential, order on the disc selected. Press
the TUNE/SEEK hard key to randomly seek through
the tracks on this disc. Touch RANDOM DISC again to
turn off random play mode.
SCAN TRACKS:Touch to hear the rst 10 seconds of
each track on the selected disc. Touch this button
again to stop scanning. The CD mutes while scanning.
r(Rewind):Touch to rewind quickly through a
track selection. CD Changer Screen
4-66

Voice Recognition
The navigation system’s voice recognition allows for
hands-free operation of navigation and audio system
features. Voice recognition can be used when the
ignition is on or when Retained Accessory Power (RAP)
is active.
This feature only works if the map DVD is inserted and
I AGREE has been selected. If voice recognition is used
without the map DVD inserted, the system displays
“Please insert the navigation map DVD to use the voice
recognition feature.” See “Installing the DVD Map Disc”
underMaps on page 4-38.
To use navigation voice recognition:
1. Push and hold the talk
symbol steering wheel
control until a beep is
heard. The audio
system mutes.2. Clearly state one of the commands listed on the
following pages. For example, say “FM1”.
3. The system states the command being implemented.
For example, the system says “FM1 Radio” and
change the audio system to the FM1 source.
The voice recognition can be ended by not speaking
any commands. After about ve seconds of silence, the
system automatically cancels voice recognition.
At times, the system may not understand a spoken
command. If this happens, try saying the command
again. If a spoken command is not available, the system
provides feedback based on availability.
While using voice recognition, make sure to keep
interior noise levels to a minimum. Otherwise, the
system might not recognize voice commands.
The system only recognizes commands spoken in
English.
4-74

Antilock Brake System (ABS)
Your vehicle has the Antilock Brake System (ABS),
an advanced electronic braking system that will
help prevent a braking skid.
When you start the engine and begin to drive away,
ABS will check itself. You might hear a momentary
motor or clicking noise while this test is going on, and
you might even notice that the brake pedal moves
a little. This is normal.
If there is a problem with
ABS, this warning light will
stay on. SeeAntilock Brake
System (ABS) Warning
Light on page 3-48.
Let us say the road is wet and you are driving safely.
Suddenly, an animal jumps out in front of you. You slam
on the brakes and continue braking. Here is what
happens with ABS:
A computer senses that the wheels are slowing down.
If one of the wheels is about to stop rolling, the computer
will separately work the brakes at each wheel.ABS can change the brake pressure to each wheel, as
required, faster than any driver could. This can help
you steer around the obstacle while braking hard.
As you brake, the computer keeps receiving updates on
wheel speed and controls braking pressure accordingly.
Remember: ABS does not change the time you need to
get your foot up to the brake pedal or always decrease
stopping distance. If you get too close to the vehicle in
front of you, you will not have time to apply the brakes
if that vehicle suddenly slows or stops. Always leave
enough room up ahead to stop, even though you
have ABS.
Using ABS
Do not pump the brakes. Just hold the brake pedal
down rmly and let antilock work for you. You might hear
a motor or clicking noise and feel the brake pedal
move a little during a stop, but this is normal.
5-5

Engine Oil Additives / Engine Oil
Flushes
Do not add anything to the oil. The recommended oils
with the starburst symbol that meet GM Standard
GM4718M are all you need for good performance and
engine protection.
Engine oil system ushes are not recommended and
could cause engine damage not covered by the vehicle
warranty.
Engine Oil Life System
When to Change Engine Oil
This 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.Notice:If this vehicle is an XLR-V model, the engine
uses a special oil lter. The use of any other engine
oil lter could lead to lter failure and result in severe
engine damage. Damage caused by use of the wrong
engine oil lter would not be covered by the vehicle
warranty.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL NOW message in the DIC
will come on. SeeDIC Warnings and Messages on
page 3-60. Change the 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
might not indicate that an oil change is necessary for
over a year. However, the engine oil and lter must be
changed at least once a year and at this time the
system must be reset. Your dealer/retailer has trained
service people who will perform this work using genuine
parts and reset the system. It is also important to
check the oil regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change
the oil at 3,000 miles (5 000 km) since the last oil change.
Remember to reset the oil life system whenever the oil is
changed.
6-18

Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. The vehicle
was designed and tested with top-quality brake parts.
When parts of the braking system are replaced — for
example, when the brake linings wear down and new
ones are installed — be sure to get new approved
replacement parts. If this is not done, the brakes might
not work properly. For example, if someone puts in brake
linings that are wrong for the vehicle, the balance
between the front and rear brakes can change — for the
worse. The braking performance expected can change in
many other ways if the wrong replacement brake parts
are installed.
Battery
This vehicle has a maintenance free battery. When it is
time for a new battery, see your dealer/retailer for
one that has the replacement number shown on the
original battery’s label.
For battery replacement, see your dealer/retailer or the
service manual. To purchase a service manual, see
Service Publications Ordering Information on page 8-15.
Warning:Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
6-35

Tire Inspection and Rotation
We recommend that you regularly inspect your
vehicle’s tires for signs of wear or damage.
SeeWhen It Is Time for New Tires on page 6-61
for additional information.
If your vehicle has P235/50R18 size tires they
should be rotated any time you notice unusual
wear. Rotate the tires as soon as possible and
check wheel alignment. Also check for damaged
tires or wheels. SeeWhen It Is Time for New Tires
on page 6-61andWheel Replacement on
page 6-66.
When rotating P235/50R18 size tires, always use
the correct rotation pattern shown here.After the tires have been rotated, adjust the front
and rear in ation pressures as shown on the Tire
and Loading Information label, seeInflation - Tire
Pressure on page 6-54andLoading the Vehicle on
page 5-21. Vehicles that have the Tire Pressure
Monitor System (TPMS) need the TPMS sensors
reset after a tire rotation is performed. A special tool
is needed to reset the sensor identi cation codes.
See your dealer/retailer for service. Make certain
that all wheel nuts are properly tightened. See
Wheel Replacement on page 6-66and “Wheel Nut
Torque” underCapacities and Specifications on
page 6-90
.
{CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause a crash. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the
vehicle. In an emergency, you can use a
cloth or a paper towel to do this; but be sure
to use a scraper or wire brush later, if you
need to, to get all the rust or dirt off.
6-60