Charging System Light
The charging system light comes on
briefly when the ignition is turned
on but the engine is not running,
as a check to show the light is
working. It should go out when the
engine is started.
If the light stays on, or comes on
while driving, there may be a
problem with the electrical charging
system. Have it checked by your
dealer/retailer. Driving while this light
is on could drain the battery.
When this light comes on, the Driver
Information Center (DIC) also
displays a message.
SeeBattery Voltage and Charging
Messages on page 4-30.If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction
Indicator Lamp
Check Engine Light
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It ensures that
emissions are at acceptable levels
for the life of the vehicle, helping
to produce a cleaner environment.
This light comes on when the
ignition is on, but the engine is not
running, as a check to show itis working. If it does not, have
the vehicle serviced by your
dealer/retailer.
If the check engine light comes on
and stays on, while the engine
is running, this indicates that there
is an OBD II problem and service
is required.
Malfunctions often are indicated by
the system before any problem
is apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system assists
the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
the vehicle’s fuel economy might
not be as good, and the engine
might not run as smoothly.
This could lead to costly repairs
that might not be covered by the
vehicle warranty.
Instruments and Controls 4-19
Information Displays
Driver Information
Center (DIC)
The vehicle may have a Driver
Information Center (DIC). The DIC
displays information about your
vehicle. It also displays warning
messages if a system problem is
detected. SeeVehicle Messages on
page 4-37for more information.
All messages appear in the
DIC display located in the center
of the instrument panel cluster.
The vehicle may also have features
that can be customized through the
controls on the radio. SeeVehicle
Personalization on page 4-38
for more information.
DIC Operation and Displays
The DIC has different displays
which can be accessed by using
the DIC buttons located on the
turn signal lever located on the
left side of the steering wheel.
The DIC displays trip, fuel, vehicle
system information, and warning
messages if a system problem
is detected.
The bottom of the DIC display shows
what position the shift lever is in
(Automatic Transmission Only),
the odometer, and the direction the
vehicle is driving.DIC Buttons
MENU:Press this button to get to
the Trip/Fuel Menu and the Vehicle
Information Menu.
wx(Thumbwheel):Use the
thumbwheel to scroll through the
items in each menu.
SET (Set/Clear):Use this button to
set or clear the menu item when
it is displayed.
Instruments and Controls 4-27
Trip/Fuel Menu Items
Press the MENU button on the
turn signal lever until Trip/Fuel
Information Menu is displayed.
Use the thumbwheel to scroll
through the following menu items:
•Digital Speedometer
•Trip 1
•Trip 2
•Fuel Range
•Average Fuel Economy
•Average Vehicle Speed
•OnStar Turn by Turn
•Blank
Digital Speedometer
The speedometer shows how fast
the vehicle is moving in either miles
per hour (mph) or kilometers per
hour (km/h). The speedometer
cannot be reset.Trip 1 and Trip 2
The Trip display shows the current
distance traveled, in either miles (mi)
or kilometers (km), since the last
reset for the trip odometer. The trip
odometer can be reset to zero by
pressing the trip reset stem or the
SET button while the trip odometer
display is showing.
Fuel Range
The Fuel Range 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
The Average Fuel Economy display
shows the approximate average
miles per gallon (mpg) or liters
per 100 kilometers (L/100 km).
This number is calculated based on
the number of mpg (L/100 km)
recorded since the last time this
menu item was reset. The fuel
economy can be reset by pressing
the SET button while the Average
Fuel Economy display is showing.
Average Vehicle Speed
The Average Vehicle Speed display
shows the average speed of the
vehicle in miles per hour (mph)
or kilometers per hour (km/h).
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 the SET button while the
Average Vehicle Speed display is
showing.
4-28 Instruments and Controls
OnStar Turn by Turn
This display is used for the OnStar
Turn by Turn guidance. SeeOnStar
®
System on page 4-42for more
information.
Blank Display
This display shows no information.
Vehicle Information
Menu Items
Press the MENU button on the
turn signal lever until Vehicle
Information Menu is displayed.
Use the thumbwheel to scroll
through the following menu items:
•Unit
•Tire Pressure
•Remaining Oil Life
•Coolant Temp
•Battery Voltage
•Speed WarningUnit
Move the thumbwheel up or down to
switch between US or Metric when
the Unit display is active. Press SET
to confirm the setting. This will
change the displays on the cluster
and DIC to either English (US) or
metric 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).
SeeTire Pressure Monitor System
on page 9-56andTire Pressure
Monitor Operation on page 9-57
for more information.
Remaining Oil Life
This display shows an estimate
of the oil’s remaining useful life.
If Remaining Oil Life 99% is
displayed, that means 99% of
the current oil life remains.When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the
display. SeeEngine Oil Messages
on page 4-32. The oil should
changed as soon as possible.
SeeEngine Oil on page 9-10.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule in this manual.
SeeScheduled Maintenance on
page 10-2for more information.
Remember, the Oil Life display
must be reset after each oil change.
It will not reset itself. Also, be
careful not to reset the Oil Life
display accidentally at any time
other than when the oil has
just been changed. It cannot be
reset accurately until the next
oil change. To reset the engine oil
life system press the SET button
while the Oil Life display is active.
SeeEngine Oil Life System on
page 9-13.
Instruments and Controls 4-29
Coolant Temperature
This display shows the temperature
of the engine cooling system fluid in
either degrees Fahrenheit (°F) or
degrees Celsius (°C).
Battery Voltage
This display, available on some
vehicles, shows the current battery
voltage. If the voltage is in the
normal range, the value will display.
For example, the display may
read Battery Voltage 15.0 Volts.
The vehicle’s charging system
regulates voltage based on the
state of the battery. The battery
voltage can fluctuate while viewing
this information on the DIC.
This is normal. SeeCharging
System Light on page 4-19
for more information.If there is a problem with the battery
charging system, the DIC will
display a message. SeeBattery
Voltage and Charging Messages
on page 4-30.
Speed Warning
Speed Warning allows the driver to
set a speed that they do not want
to exceed. To set the Speed
Warning press SET when Speed
Warning is displayed.
Compass
The vehicle may have a compass
display in the Driver Information
Center (DIC). SeeCompass
on page 4-8for more information.
Vehicle Messages
Battery Voltage and
Charging Messages
Battery Saver Active
This message displays when the
vehicle has detected that the battery
voltage is dropping beyond a
reasonable point. The battery saver
system starts reducing certain
features of the vehicle that you may
be able to notice. At the point that
features are disabled, this message
is displayed. It means that the
vehicle is trying to save the charge in
the battery. Turn off unnecessary
accessories to allow the battery to
recharge.
4-30 Instruments and Controls
Low Battery
This message is displayed when the
battery voltage is low. SeeBattery
on page 9-29for more information.
Service Battery Charging
System
This message is displayed when
there is a fault in the battery
charging system. Take the vehicle
to your dealer/retailer for service.
Brake System Messages
Brake Fluid Low
This message is displayed when the
brake fluid level is low, seeBrake
Fluid on page 9-28.
Release Parking Brake
This message is displayed as a
reminder that the parking brake is
on. Release it before you attempt
to drive.
Compass Messages
Service Compass
This message is displayed when the
compass needs service. Take the
vehicle to your dealer/retailer for
service.
Cruise Control Messages
Apply Brakes Before Cruise
If this message displays when
attempting to activate cruise control,
apply the brake and then try again.
Cruise Set to XXX
This message will display when the
cruise control is set and it will
show the speed it was set to.
SeeCruise Control on page 8-38
for more information.
Door Ajar Messages
Driver Door Open
This message will display when the
driver door is open. Close the door
completely.
Hood Open
This message will display when
the hood is open. Close the hood
completely.
Passenger Door Open
This message will display when the
passenger door is open. Close the
door completely.
Trunk Open
This message will display when
the trunk is open. Close the trunk
completely.
Instruments and Controls 4-31
Engine Cooling System
Messages
A/C Off Due to High
Engine Temp
This message displays when the
engine coolant becomes hotter than
the normal operating temperature.
To avoid added strain on a hot
engine, the air conditioning
compressor automatically turns off.
When the coolant temperature
returns to normal, the air conditioning
compressor turns back on. You can
continue to drive your vehicle.
If this message continues to appear,
have the system repaired by your
dealer/retailer as soon as possible
to avoid damage to the engine.
Coolant Level Low Add
Coolant
This message will display if the
coolant is low, seeEngine Coolant
on page 9-19.
Engine Overheated — Idle
Engine
This message displays when the
engine coolant temperature is
too hot. Stop and allow the vehicle
to idle until it cools down.
Engine Overheated — Stop
Engine
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as
soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
High Coolant Temperature
This message displays if the coolant
temperature is hot, seeEngine
Overheating on page 9-24.
Engine Oil Messages
Change Engine Oil Soon
This message displays when the
engine oil needs to be changed.
When you change the engine oil,
be sure to reset the CHANGE
ENGINE OIL SOON message.
SeeEngine Oil Life System
on page 9-13andDriver Information
Center (DIC) on page 4-27for
information on how to reset
the message. SeeEngine Oil
on page 9-10andScheduled
Maintenance on page 10-2for
more information.
Engine Oil Hot, Idle Engine
This message displays when
the engine oil temperature is too
hot. Stop and allow the vehicle
to idle until it cools down.
Engine Oil Low – Add Oil
This message displays when
the engine oil level is too low.
Check the oil level. SeeEngine Oil
on page 9-10.
4-32 Instruments and Controls
Oil Pressure Low – Stop
Engine
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have your vehicle
serviced by your dealer/retailer.
Engine Power Messages
Engine Power Is Reduced
This message displays when the
vehicle’s engine power is reduced.
Reduced engine power can affect the
vehicle’s ability to accelerate. If this
message is on, but there is no
reduction in performance, proceed to
your destination. The performance
may be reduced the next time the
vehicle is driven. The vehicle may
be driven at a reduced speed whilethis message is on, but maximum
acceleration and speed may be
reduced. Anytime this message
stays on, the vehicle should be taken
to your dealer/retailer for service as
soon as possible.
Fuel System Messages
Fuel Level Low
This message displays when the
vehicle is low on fuel. Refuel
as soon as possible
Tighten Gas Cap
This message displays when the
fuel cap is not on tight. Tighten the
fuel cap.
Change Fuel Filter
This message displays when the
fuel needs to be replaced. Take the
vehicle to your dealer/retailer for
service.
Key and Lock Messages
Number Of Keys Programmed
This message displays when
programming new keys to the
vehicle.
Replace Battery In Remote Key
This message displays when the
battery in the Remote Keyless
Entry (RKE) transmitter needs to be
replaced.
Lamp Messages
Automatic Light Control On
This message is displayed when the
automatic light control has been
turned on. SeeAutomatic Headlamp
System on page 5-3.
Instruments and Controls 4-33