Page 105 of 394

Instruments and Controls 4-19
down. The diagnostic system is
designed to evaluate critical
emission control systems during
normal driving. This can take
several days of routine driving.
If this has been done and the
vehicle still does not pass the
inspection for lack of OBD II
system readiness, your dealer
can prepare the vehicle for
inspection.
Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working
United StatesCanada
The brake indicator light should
come on briefly as the engine is
started. If it does not come on have
the vehicle serviced by your dealer.
When the ignition is on, the brake
system warning light comes on
when the parking brake is set. The
light stays on if the parking brake
does not fully release. If it stays on
after the parking brake is fully
released, there is a brake problem.
Have the brake system inspected
immediately.
{WARNING
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
If the light comes on while driving, a
chime sounds. Pull off the road and
stop. The pedal might be harder to
push or go closer to the floor.
It might also take longer to stop.
If the light is still on, have the
vehicle towed for service. See
Towing the Vehicle on page 9‑72.
Page 106 of 394

4-20 Instruments and Controls
Antilock Brake System
(ABS) Warning Light
For vehicles with the Antilock Brake
System (ABS), this light comes on
briefly when the engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the ABS light stays on, turn the
ignition off. If the light comes on
while driving, stop as soon as it is
safely possible and turn the ignition
off. A chime may also sound when
the light comes on steady. Then
start the engine again to reset the
system. If the ABS light stays on,
or comes on again while driving, the
vehicle needs service. If the regular
brake system warning light is not
on, the vehicle still has brakes, butnot antilock brakes. If the regular
brake system warning light is also
on, the vehicle does not have
antilock brakes and there is a
problem with the regular brakes.
See
Brake System Warning Light
on page 4‑19.
For vehicles with a Driver
Information Center (DIC), see Driver
Information Center (DIC)
on
page 4‑24for all brake related DIC
messages.
Traction Off Light
This light comes on if the Traction
Control System (TCS) either has a
problem or is turned off. DIC
messages appear in the DIC display
to help explain. See Ride Control
System Messages
on page 4‑31for more information. See
Traction Control System (TCS)
on page 8‑41andStabiliTrak
Systemon page 8‑43for more
information.
StabiliTrak®OFF Light
This light comes on when the
StabiliTrak system is turned off.
If the Traction Control System (TCS)
is off, wheel spin is not limited. If the
StabiliTrak system is off, the system
does not assist in controlling the
vehicle. Turn on the TCS and the
StabiliTrak system and the warning
light turns off.
Check the DIC for applicable
messages. See Ride Control
System Messages
on page 4‑31for more information.
Page 107 of 394

Instruments and Controls 4-21
SeeTraction Control System (TCS)on page 8‑41andStabiliTrak
Systemon page 8‑43for more
information.
Traction Control System
(TCS)/StabiliTrak®Light
The StabiliTrak®system or the
Traction Control System (TCS)
indicator/warning light comes on
briefly while starting the engine.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
The indicator/warning light flashes
while the StabiliTrak or TCS system
is working to control the vehicle on
a low traction surface. If the TCS warning light comes on
and stays on while driving, the
vehicle needs service.
Check the Driver Information Center
(DIC) for applicable messages. See
Ride Control System Messages
on
page 4‑31for more information.
See Traction Control System (TCS)
on page 8‑41andStabiliTrak
Systemon page 8‑43for more
information.
Tire Pressure Light
For vehicles with a tire pressure
monitoring system, this light comes
on briefly when the engine is
started. It provides information
about tire pressures and the Tire
Pressure Monitoring System. When the Light is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A tire pressure message in the
Driver Information Center (DIC), can
accompany the light. See
Tire
Messages
on page 4‑33for more
information. Stop as soon as
possible, and inflate the tires to the
pressure value shown on the tire
loading information label. See Tire
Pressure
on page 9‑46for more
information.
When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the Tire Pressure
Monitor System. The light flashes
for about a minute and stays on
steady for the remainder of the
ignition cycle. This sequence
repeats with every ignition cycle.
See Tire Pressure Monitor
Operation
on page 9‑49for more
information.
Page 108 of 394

4-22 Instruments and Controls
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule in this manual for
changing engine oil.
The oil pressure light should come
on briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer.
Fuel Economy Light
For vehicles with the fuel economy
mode light, it comes on when the
eco (economy) switch, located on the center console near the shifter,
is pressed. For vehicles with a
Driver Information Center (DIC) an
ECO Mode On message displays.
See
Fuel System Messages
on
page 4‑30for more information.
Press the switch again to turn off
the light and exit the fuel
saver mode.
Low Fuel Warning Light
United States Shown, Canada
Similar
This light comes on for a few
seconds when the ignition is turned
on as a check to indicate it is
working. If it does not come on,
have it fixed.
The low fuel warning light is a circle
located on the fuel gauge. This light
comes on and a chime sounds
Page 109 of 394
Instruments and Controls 4-23
periodically when the vehicle is low
on fuel. The light goes off when fuel
is added to the fuel tank.
For vehicles with a Driver
Information Center (DIC), seeFuel
System Messages
on page 4‑30for more information.
Security Light
This light comes on if there is a
problem with the security system,
or if the vehicle has been
tampered with.
For more information, see Vehicle
Security on page 1‑12.
High-Beam on Light
The high-beam on light comes on
when the high-beam headlamps are
in use.
See Headlamp High/Low-Beam
Changer
on page 5‑1for more
information.
Fog Lamp Light
The fog lamp light comes on when
the fog lamps are in use. The light goes out when the fog
lamps are turned off. See
Fog
Lamps
on page 5‑3for more
information.
Lamps on Reminder
For vehicles with the lamps on
reminder light, it comes on when the
lights are in use.
Page 110 of 394

4-24 Instruments and Controls
Cruise Control Light
The cruise control light is white
whenever the cruise control is set
and turns green when the cruise
control is active.
The light turns off when the cruise
control is turned off. SeeCruise
Control
on page 8‑44for more
information.
Information Displays
Driver Information
Center (DIC)
The vehicle may have a Driver
Information Center (DIC). It displays
information about the vehicle and
warning messages if there is a
system problem detected. DIC
messages display in the center of
the instrument panel cluster. See
Vehicle Messages
on page 4‑27for
more information.
The vehicle may also have features
that can be customized through the
controls on the radio. See Vehicle
Personalization
on page 4‑34for
more information.
DIC Operation and Displays
Use the DIC buttons located in the
center of the instrument panel to
access different displays. The DIC
displays trip, fuel, vehicle system
information, and warning messages. It also shows the shift lever position,
the odometer, and the direction the
vehicle is driving.
DIC Buttons (with
Vshown, SET/
CLR version similar)
MENU: Press this button to get to
the Trip/Fuel Menu and the Vehicle
Information Menu.
w x: Use these buttons to scroll
through the items in each menu.
A small marker will move along the
page as you scroll through the
items. This shows where each page
is in the menu.
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Instruments and Controls 4-25
Vor SET/CLR (Set/Clear):Use
this button to set or clear the menu
item when it is displayed.
Trip/Fuel Menu Items
Press the MENU button until Trip/
Fuel Information Menu is displayed.
Then press
xto scroll through the
following menu items:
.Trip 1
.Trip 2
.Fuel Range
.Average Fuel Economy
.Instantaneous Fuel Economy
.Average Vehicle Speed
.Timer
.Digital Speedometer
.Navigation Turn-by-Turn
.Blank Trip 1 and Trip 2
This display shows the current
distance traveled, in either
kilometers (km) or miles (mi), since
the last reset for the trip odometer.
The trip odometer can be reset to
zero by pressing the trip reset stem
or
Vor SET/CLR while the trip
odometer display is showing.
Fuel Range
This display shows the approximate
distance the vehicle can be driven
without refueling. The fuel range
estimate is based on an average
of the vehicle's fuel economy over
recent driving history and the
amount of fuel remaining in the fuel
tank. Fuel range cannot be reset.
Average Fuel Economy
This display shows the approximate
average liters per 100 kilometers
(L/100 km) or miles per gallon
(mpg). This number is calculated
based on the number of L/100 km
(mpg) recorded since the last time
this menu item was reset. The fuel economy can be reset by pressing
Vor SET/CLR while the Average
Fuel Economy display is showing.
The display may not reset to zero.
Instantaneous Fuel Economy
This display shows the current
fuel economy in either liters per
100 kilometers (L/100 km) or miles
per gallon (mpg). This number
reflects only the fuel economy that
the vehicle has right now and
changes frequently as driving
conditions change. Unlike average
economy, this display cannot be
reset.
Average Vehicle Speed
This display shows the average
speed of the vehicle in kilometers
per hour (km/h) or miles per
hour (mph). This average is
calculated based on the various
vehicle speeds recorded since the
last reset of this value. The average
speed can be reset by pressing
V
or SET/CLR while the Average
Vehicle Speed display is showing.
Page 112 of 394

4-26 Instruments and Controls
Timer
This display can be used as a timer.
To start the timer, press
Vor SET/
CLR while Timer is displayed. The
display will show the amount of time
that has passed since the timer was
last reset, not including time the
ignition is off. Time will continue to
be counted as long as the ignition is
on, even if another display is being
shown on the DIC. The timer will
record up to 99 hours, 59 minutes
and 59 seconds (99:59:59) after
which the display will return to zero.
To stop the timer, press
Vor SET/
CLR briefly while Timer is displayed.
To reset the timer to zero, press and
hold
Vor SET/CLR.
Digital Speedometer
The speedometer shows how fast
the vehicle is moving in either
kilometers per hour (km/h) or miles
per hour (mph). The speedometer
cannot be reset. Turn-by-Turn
This display is used for the OnStar
or Navigation System Turn-by-Turn
guidance. See
OnStar
®Systemon
page 4‑39or the Navigation
manual, if the vehicle has
navigation, for more information.
Blank Display
This display shows no information.
Vehicle Information Menu
Items
Press the MENU button until Vehicle
Information Menu is displayed. Then
press
xto scroll through the
following menu items:
.Unit
.Tire Pressure
.Remaining Oil Life
.Blank Unit
Press
Vor SET/CLR to enter the
unit menu. Then press
worxto
switch between US or Metric when
the Unit display is active. Press
V
or SET/CLR to confirm the setting.
This will change the displays on the
cluster and DIC to either metric or
English (US) measurements.
Tire Pressure
The display will show a vehicle with
the approximate pressures of all
four tires. Tire pressure is displayed
in either pounds per square
inch (psi) or in kilopascal (kPa).
Any time the tire pressures are
adjusted the system needs to
relearn the new pressures. To
relearn the tire pressures press
Vor
SET/CLR while the Tire Pressure
display is active. The display will
ask for confirmation of a relearn.
Press
worxto select Yes or No.
Then press
Vor SET/CLR to
confirm the selection. See Tire