
BUCKLE SEAT BELT:This message reminds you to
buckle the driver’s seat belt.
This message will display and a chime will sound when
the ignition is on, the driver’s seat belt is unbuckled,
and the vehicle is in motion. You should buckle
your seat belt.
If the driver remains unbuckled when the ignition is on
and the vehicle is in motion, the reminder will be
repeated. If the driver’s seat belt is already buckled,
this message and chime will not come on.
This message is an additional reminder to the Safety
Belt Reminder Light in the instrument panel cluster.
SeeSafety Belt Reminder Light on page 3-50for more
information.
CHANGE OIL NOW:This means that the life of the
engine oil has expired. SeeScheduled Maintenance on
page 7-4. After an oil change, the Oil Life Indicator
must be reset. SeeOil Life Indicator on page 3-82and
Engine Oil Life System on page 6-18.
CHARGE SYSTEM FAULT:This message will display
when a problem with the charging system has been
detected. Have your vehicle serviced by your GM dealer.CHECK GAS CAP:This message will appear if the gas
cap has not been fully tightened. You should recheck
your gas cap to ensure that it is on properly.
CLEAN RADAR CRUISE:If your vehicle has this
feature, this message indicates the Adaptive Cruise
Control (ACC) system is disabled because the radar is
blocked and cannot detect vehicles in your path.
It may also activate during heavy rain or due to road
spray. To clean the system, seeAdaptive Cruise Control
on page 3-15.
CLOSE CARGO DIVIDER:This message indicates that
the cargo divider is not in place. Open the trunk and
make sure the cargo divider is secure and no objects are
on the divider. SeeRear Storage Area on page 2-46
for more information.
COOLANT OVER TEMP (Temperature):This message
will appear when the engine coolant temperature is
too hot. Stop and allow your vehicle to idle in PARK (P)
until it cools down and the message is removed. Do
not increase engine speed above a normal idle. If it does
not cool down, turn off the engine and have it serviced
by your GM dealer before driving it again. Severe
engine damage can result from an overheated engine.
SeeEngine Overheating on page 6-25.
3-68

The Driver Information Center will scroll three messages:
SERVICE ABS, SERVICE TRACTION SYS and
SERVICE STABILITRAK, and the anti-lock brake system
and traction control warning lights on the instrument
panel cluster will be illuminated. SeeAnti-Lock Brake
System Warning Light on page 3-55andTraction
Control System (TCS) Warning Light on page 3-56. The
driver can acknowledge these messages by pressing
the RESET button three times. When the service
message is displayed, the computer controlled systems
will not assist the driver and you should have the
system repaired by your GM dealer as soon as possible.
Adjust your driving accordingly.
SERVICE AFS LAMPS:This message indicates that
the Adaptive Forward Lighting System (AFS) is disabled
and needs service. See your GM dealer. SeeAdaptive
Forward Lighting System on page 3-31for more
information.
SERVICE ELECT (Electrical) SYSTEM:This message
will display if an electrical problem has occurred within
the Powertrain Control Module (PCM). Have your vehicle
serviced by your GM dealer.
SERVICE FUEL SYSTEM:The Powertrain Control
Module (PCM) has detected a problem within the
fuel system when this message appears. Have your
vehicle serviced by your GM dealer. This message will
also be displayed when the cluster is not getting
fuel information from the PCM.SERVICE RADAR CRUISE:If your vehicle has this
feature, this message indicates that the Adaptive Cruise
Control (ACC) system is disabled and needs service.
See your GM dealer.
SERVICE RIDE CONTROL:This message indicates
there is a problem with the Magnetic Ride Control
System. Have your vehicle serviced by your GM dealer.
SERVICE TRACTION SYS (System):This message
indicates there is a problem with the Traction Control
System (TCS). Have your vehicle serviced by your
GM dealer.
SERVICE STABILITRAK:If this message appears,
it means there may be a problem with your stability
enhancement system. If you see this message, try to
reset the system. Stop, turn off the engine, then start the
engine again. If the SERVICE STABILITRAK message
still comes on, it means there is a problem. You should
see your GM dealer for service. Reduce your speed and
drive accordingly. A single chime will also sound when
this message is displayed.
SERVICE TRANSMISSION:This message indicates
that there is a problem with the transmission. Have your
vehicle serviced by your GM dealer.
SERVICE VEHICLE SOON:This message is displayed
when a non-emissions related powertrain malfunction
occurs. Have your vehicle serviced by your GM dealer
as soon as possible.
3-74

Magnetic Ride Control
Magnetic Ride Control automatically adjusts the ride
of your vehicle. Automatic ride control is achieved
through a computer used to control and monitor the
suspension system. The controller receives input
from various sensors to determine the proper system
response. If the controller detects a problem within
the system, the DIC will display a SERVICE RIDE
CONTROL message. SeeDIC Warnings and Messages
on page 3-67for more information. See your dealer
for service.
Limited-Slip Rear Axle
Your limited-slip rear axle can give you additional
traction on snow, mud, ice, sand or gravel. It works
like a standard axle most of the time, but when one
of the rear wheels has no traction and the other
does, this feature will allow the wheel with traction
to move the vehicle.
StabiliTrak®System
The StabiliTrak®System is a computer controlled
system that helps the driver maintain directional control
of the vehicle in difficult driving conditions. This is
accomplished by selectively applying any one of the
vehicle’s brakes.
When you rst start your vehicle and begin to drive
away (6 mph (10 km/h)), especially during cold weather,
the message STABILITRAK WARMING may be
displayed in the Driver Information Center (DIC), the
instrument cluster light will be on, and a chime will
sound. This is normal. You can acknowledge this
message by pressing the RESET button. The
StabiliTrak
®System performance is affected until the
message, STABILITRAK READY, is displayed in
the DIC. This can take up to 15 minutes.
The WAIT FOR STABILITRAK message may be
displayed in the DIC after exceeding 19 mph (30 km/h)
for 10 seconds if the steering is not centered.
The system is off until the STABILITRAK ACTIVE
message is displayed.
5-11

The STABILITRAK ACTIVE message will come on
when the system is operating. SeeDIC Warnings
and Messages on page 3-67for more information.
You may also feel or hear the system working.
This is normal.
The instrument cluster
light will come on and a
chime will sound to let
you know if there is
a problem with the system.
The SERVICE STABILITRAK message will also be
displayed. SeeDIC Warnings and Messages on
page 3-67for more information.
When this light and the SERVICE STABILITRAK
message are on, the system is not operational.
Adjust your driving accordingly.The system comes on automatically whenever you start
your vehicle. To help maintain directional control of
the vehicle, you should always leave the system on.
You can turn the system off if you ever need to. If you
turn the STABILITRAK
®System off, the Traction
Control System will also be turned off. Adjust your
driving accordingly.
To turn the system off,
press and hold the
front part of the traction
control button on the
console for ve seconds
with the vehicle stopped.
You can turn the system back on at any time by pressing
the button. The DIC will display the appropriate message
when you push the button, either TRAC/STABILITRAK
ON or TRAC/STABILITRAK OFF.
5-12

Adding Coolant
If you need more coolant, add the proper DEX-COOL®
coolant mixture at the surge tank, but only when the
engine is cool.
{CAUTION:
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Do not spill coolant on a hot engine.
When replacing the pressure cap, press down and turn it
clockwise until you hear a clicking sound. Make sure the
cap is hand-tight and fully seated.
Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 6-12for more
information on location.
Engine Overheating
You will nd a COOLANT OVER TEMP message or
an ENGINE HOT, STOP ENGINE message displayed
in the Driver Information Center (DIC). SeeDIC
Warnings and Messages on page 3-67. You will also
hear a chime.
There is also an engine coolant temperature gage
on the instrument panel cluster. SeeEngine Coolant
Temperature Gage on page 3-57.
6-25