
Cleaning the System
The radar can become blocked by snow, ice or dirt.
If so, you may need to turn off the engine and clean the
lens. Remember, do not use Adaptive Cruise Control
in icy conditions, or when visibility is low, such as in fog,
rain or snow.
The emblem/lens is located in the center of the grille.
To clean the emblem/lens, wipe the surface with a
soft cloth. After cleaning the emblem/lens, engage the
Adaptive Cruise Control. If you are unable to do so, see
your dealer.
Headlamps
The exterior lamp control is located in the middle of the
turn signal/multifunction lever.
O(Exterior Lamp Control):Turn the control with this
symbol on it to operate the exterior lamps.The exterior lamp control has four positions:
O(On/Off):Turn the control to this position to turn off
all lamps and automatic lighting features including
Daytime Running Lamps and Intellibeam™
This is a “momentary” switch that will spring back to the
AUTO position when released. An AUTOMATIC
LIGHTS ON message will appear on the DIC when
automatic lights are enabled or an AUTOMATIC LIGHTS
OFF message will appear on the DIC when the
automatic lights are disabled.
AUTO (Automatic):Turn the control to this position to
put the headlamps in automatic mode. AUTO mode, if
enabled, will turn the exterior lamps on and off depending
upon how much light is available outside of the vehicle.
Due to the “momentary” switch design, your automatic
lights may be disabled even if you are in AUTO position.
To enable automatic lighting do any of the following:
Turn the headlamp control from AUTO to off
and release the switch. It will return back to
the AUTO position by itself.
Turn the headlamp control from the parking lamp
position to AUTO.
Turn the headlamp control from the headlamp
position to AUTO.
3-33

The mode switch can also be used to select the defog
mode. Information on defogging and defrosting can
be found later in this section.
yAz(Fan):Press this switch to increase or
decrease the fan speed. Pressing this switch cancels
automatic operation and allows the operator to manually
select the amount of air ow. Press AUTO to return to
automatic operation.
If the air ow seems low when the fan speed is at the
highest setting, the passenger compartment air lter may
need to be replaced. For more information, see
Passenger Compartment Air Filter on page 3-58and
Scheduled Maintenance on page 6-4.
h(Recirculation):This button controls the air
source for the climate control system. If you are in
AUTO mode, pressing this button once will choose
recirculation. This mode keeps outside air from coming
in the vehicle and recirculates the air in the vehicle.
It can be used to prevent outside air and odors
from entering your vehicle or to help cool the air inside
your vehicle more quickly.
Recirculation is not available in the defrost mode and
will shut off when defog mode is selected. Both of these
features are designed to limit fogging in your vehicle.
If recirculation is selected during defog mode, it will
automatically turn off after 10 minutes to limit problems
with fogging.In some conditions, using recirculation for long periods
of time may cause the air inside your vehicle to
become too dry or stuffy. To prevent this from
happening, after the air in your vehicle has cooled,
select AUTO to return to automatic climate control
operation or push the recirculation button again to select
outside air.
Pressing this button a second time selects outside air.
:(Outside Air):This mode forces the system
to pull air from outside the vehicle. It can be used to
bring fresh air into the vehicle.
Air Quality Sensor:Your vehicle may be equipped
with an optional air quality sensor to help limit the
climate control system from pulling in some harmful
exhaust fumes from older, poorly running or
diesel-equipped vehicles that are driving near you.
This sensor, when active, will monitor the air quality in
front of your vehicle and switch to air recirculation when
poor quality air is detected outside your vehicle. You
can activate the air quality sensor on your vehicle
(if equipped) by pressing the AUTO button on your
climate control. The word AUTO will be shown in
the center of the climate control display under the
outline shape of a vehicle. When the air quality sensor
senses poor quality air, the recirculation graphic will
be shown as long as the sensor senses poor quality air.
3-52

Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this inspection
could prevent you from getting a vehicle registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the Check
Engine light is on or not working properly.
To perform a Check Engine light bulb check with the
keyless ignition, make sure the transmitter fob is in the
passenger compartment. SeeIgnition Positions on
page 2-22. Press the bottom of the ACC button on the
instrument panel and hold the button down for ve
seconds. The instrument panel, including the Check
Engine light, will light up and the ignition will be on, but
the engine will not start — if you press the bottom of
the ACC button only brie y, less than ve seconds, the
accessory mode will be turned on, but not the ignition.
After the bulb check, be sure to press and release
the ACC button again to turn the ignition off and avoid
draining the vehicle’s battery.
Your vehicle will not pass this inspection if the
OBD (on-board diagnostic) system determines that
critical emission control systems have not been
completely diagnosed by the system.The vehicle would be considered not ready for
inspection. This can happen if you have recently
replaced your battery or if your battery has run down.
The diagnostic system is designed to evaluate
critical emission control systems during normal driving.
This may take several days of routine driving. If you
have done this and your vehicle still does not pass the
inspection for lack of OBD system readiness, your
GM dealer can prepare the vehicle for inspection.
Oil Pressure Light
{CAUTION:
Do not keep driving if the oil pressure is low.
If you do, your engine can become so hot that
it catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance
may damage the engine. The repairs would not
be covered by your warranty. Always follow
the maintenance schedule in this manual for
changing engine oil.
3-70

DIC Controls and Displays
The Driver Information Center (DIC) has different
modes which can be accessed by pressing the four
DIC buttons located on the instrument panel, to the
left of the steering wheel.
DIC Buttons (Base Level)
If your vehicle does not
have a Head-Up Display
(HUD), these are the
buttons for your DIC.
«4ª(Information):Press the top or bottom of this
button to scroll through the available vehicle information
displays which include fuel range, fuel economy, fuel
used, average speed, timer, battery voltage, tire pressure
(if equipped with a tire pressure monitor), engine oil life
(if equipped) and digital speed display (if equipped).
See “MPH (km)” later in this section for more information
on the digital speed display.
AB
300 (Trip Information):Press the top of this
button to scroll through the odometer, trip odometer A
and trip odometer B. Press and hold the bottom of
this button to reset each trip odometer back to zero.
4// (Reset):Press this button to reset certain DIC
features and to acknowledge DIC warning messages
and clear them from the DIC display.
EM (English/Metric):Press this button to change the
display from English to metric.
3-74

SeeOverheated Engine Protection Operating Mode on
page 5-26for information on driving to a safe place
in an emergency.
Notice:If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If
an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon
as possible. Do not increase the engine speed above
normal idling speed. SeeEngine Overheating on
page 5-24for more information.
ENGINE HOT – AC (Air Conditioning)
OFF
This message will display when the engine coolant
becomes hotter than the normal operating temperature.
SeeEngine Coolant Temperature Gage on page 3-67.
To avoid added strain on a hot engine, the air
conditioning compressor is automatically turned off.
When the coolant temperature returns to normal, the air
conditioning compressor will turn back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired by your GM dealer as soon as possible to avoid
damage to your engine.
ENGINE OVERHEATED STOP ENGINE
This message will display when the engine has
overheated. Immediately look for a safe place to pull
your vehicle over and turn the engine off right away to
avoid severe engine damage. SeeEngine Overheating
on page 5-24andOverheated Engine Protection
Operating Mode on page 5-26. A chime will also sound
when this message is displayed.
Notice:If you drive your vehicle while the engine is
overheating, severe engine damage may occur. If
an overheat warning appears on the instrument
panel cluster and/or DIC, stop the vehicle as soon
as possible. Do not increase the engine speed above
normal idling speed. SeeEngine Overheating on
page 5-24for more information.
ENGINE POWER REDUCED
This message informs you that the engine power is
being reduced to protect the engine from damage. There
could be several malfunctions that might cause this
message. Have your vehicle serviced by your GM dealer
as soon as possible.
3-83

SERVICE THEFT SYSTEM
This message will display when there is a problem with
the hood open and closed switches. The switches
may need to be replaced. When this message is
displayed, the theft-deterrent system will still be
protecting the interior of the vehicle, however, the hood
area will not be protected at this time. Also, the
remote start function will not work when this message
appears. See your GM dealer for service.
SERVICE TRANSMISSION
This message will display when there is a problem with
the transmission of your vehicle. Have your vehicle
serviced by your GM dealer.
SERVICE VEHICLE SOON
This message will display when a non-emissions related
malfunction occurs. Have your vehicle serviced by
your GM dealer as soon as possible.
SPEED LIMITED TO XXX
This message will display when your vehicle speed is
limited to XXX (mph in English mode and km/h in Metric
mode) because the vehicle detects a problem in the
suspension system. Have your vehicle serviced by your
GM dealer.
STABILITY SYS (System) ACTIVE
The STABILITY SYS ACTIVE message will display
any time StabiliTrak®is actively assisting you with
directional control of the vehicle. Slippery road
conditions may exist when this message is displayed,
so adjust your driving accordingly. This message
may stay on for a few seconds after StabiliTrak
®stops
assisting you with directional control of the vehicle.
SeeStabiliTrak
®System on page 4-10for more
information.
STABILITY SYS (System) NOT READY
The STABILITY SYS NOT READY message will
display if StabiliTrak®is not ready. Two conditions may
cause this message to display.
The rst condition may be that the vehicle needs to be
driven in a straight line for approximately 30-40 ft
(9-12 m) until the sensors are centered. Once the
sensors are centered, the StabiliTrak
®system will be
ready and the STABILITY SYS READY message
will display.
The second condition that may cause this message to
display is when you rst start your vehicle and drive
away during cold winter weather. This is normal.
The system needs to warm up. You can acknowledge
this message by pressing the reset button.
3-89

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/select knob to enter the main menu.
2. Turn the tune/select knob until INFO appears on
the display.
3. Press the tune/select knob to select INFO. The
display will change to show the additional XM
information.
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.
Playing the Radio
O
(Power):Press this knob to turn the system on
and off.
n(Volume):Turn this knob to increase or to
decrease the volume.
SRCE (Source):Press this button to select a source,
either radio or CD. The CD must be loaded to select the
source and to play. CD will appear on the display if a
CD is loaded. If a CD is not loaded, the display will not
change from the radio source.
Finding a Station
BAND:Press this button to select FM1, FM2, or XM1
or XM2 (if equipped).
w(Tune):Turn this knob to select radio stations.
©¨(Seek):Press the left single arrow button
to go to the previous station and stay there. Press the
right single arrow button to go to the next station
and stay there. The sound will mute while seeking.
The radio will only seek stations with a strong signal that
are in the selected band.
©¨(Scan):Press the double arrow scan button to
enter scan mode. SCAN will appear on the display.
Press this button to scan to the next station. The radio
will go to a station, play for 5 seconds, then go on
to the next station. Press this button again to stop
scanning.
To scan preset stations, press and hold the double
arrow scan button for more than two seconds until you
hear a beep and PSCAN appears on the display.
The radio will go to the rst preset station, play for
5 seconds, then go on to the next preset station. Press
this button again to stop scanning presets.
The radio will only scan stations with a strong signal
that are in the selected band.
3-95

When a CD is inserted, CD will appear on the display,
the number of the CD and the track number will
appear on the display if the radio is on.
If the radio is on, the CD will begin to play automatically.
To insert multiple CDs, do the following:
1. The ignition and the radio can be on or off.
2. Press and hold the load button for two seconds.
Please Wait will appear on the display and you
will hear a beep.
3. Load the CD, when INSERT appears on the
display, insert a CD partway into the slot, label side
up. The player will pull the CD in.
Do not load a CD until INSERT appears on the
display. The CD player will take up to six CDs. Do
not try to load more than six. If you want to load
less than six CDs, load the desired amount. The CD
player will time out when it does not receive any
more CDs and the last CD loaded will begin to play.
If the radio is on, the last CD loaded will begin to play
automatically.
F1 DISC
n(Down):Press this pushbutton to go to the
previous CD.
F2 DISC
m(Up):Press this pushbutton to go to the
next CD.F3 CD REV
{(Reverse):Press this pushbutton to go
to the previous track. Press and hold this pushbutton
to reverse quickly within the track. Release this
pushbutton to play the passage. The elapsed time of
the track will appear on the display.
F4 CD FWD
|(Forward):Press this pushbutton to
go to the next track. Press and hold this pushbutton
to advance quickly within the track. Release this
pushbutton to play the passage. The elapsed time of
the track will appear on the display.
F5 MODE:Press this pushbutton to select from
NORMAL, RPT TRCK (Repeat Track), RPT DISC
(Repeat CD), RDM TRCK (Random Track), and RDM
ALL (Random All CDs).
NORMAL:Sets the system for normal play of the
CD(s). NORMAL will not appear on the display
when in this mode.
RPT TRCK (Repeat Track):Repeats the track over
again. RPT TRCK will appear on the display. Press
the MODE pushbutton again to turn off repeat
play. RPT TRCK will disappear from the display.
RPT DISC (Repeat CD):Repeats the CD over
again. RPT DISC will appear on the display.
Press the MODE pushbutton again to turn off repeat
play. RPT DISC will disappear from the display.
3-105