
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. See
Filling Your Tank on page 5-7. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-4. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, mis®ring, hesitation
on acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to ®x any
mechanical or electrical problems that may have
developed.
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.
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
3-42

Fuel Gage
The fuel gage, when the ignition is on, tells you about
how much fuel you have left in your tank.
The gage will ®rst indicate empty before you are out of
fuel, and you should get more fuel as soon as
possible.
When the fuel tank is low the FUEL LEVEL LOW
message will appear. See
Driver Information Center
(DIC) on page 3-46.Here are some situations you may experience with your
fuel gage. None of these indicate a problem with the
fuel gage.
·At the gas station, the fuel pump shuts off before
the gage reads full.
·It takes a little more or less fuel to ®ll up than the
fuel gage indicated. For example, the gage may
have indicated the tank was half full, but it actually
took a little more or less than half the tank's
capacity to ®ll the tank.
·The gage goes back to empty when you turn off the
ignition.
Low Fuel Warning Light
The light next to the fuel gage will come on brie¯y when
you are starting the engine.
This light comes on when the fuel tank is low on fuel.
To turn it off, add fuel to the fuel tank. See
Fuel on
page 5-4. United States
Canada
3-45

Driver Information Center (DIC)
The DIC display is located on the instrument panel
cluster above the steering wheel. The DIC can display
information such as the trip odometer, fuel economy and
personalization features. Vehicles without the DIC
buttons will not have all the features as the regular DIC.
See
Speedometer and Odometer on page 3-32for
information on features for vehicles without a full DIC.
A (Trip Information):This button will display the
odometer, personal trip odometer, business trip
odometer, hourmeter, annual log and the timer.
B (Fuel Information):This button will display the
current range, average fuel economy, instant fuel
economy and engine oil life.C (Personalization):This button will change personal
options available on your vehicle.
D (Select):This button resets certain functions and
turns off or acknowledges messages on the DIC.
DIC Operation and Displays
The DIC comes on when the ignition is on. After a short
delay the DIC will display the current driver (1 or 2)
and the information that was last displayed before the
engine was turned off.
If a problem is detected, a warning message will appear
on the display. Pressing any of the four buttons will
acknowledge (clear) most current warnings or service
messages. Some warnings that cannot be
acknowledged (cleared) are: ENGINE OVERHEATED,
OIL PRESSURE LOW, REDUCED ENGINE POWER,
TRANS HOT IDLE ENGINE, TRACTION SYS LIMITED,
TRACTION ACTIVE. These warnings must be dealt
with immediately and therefore cannot be cleared until
the problem has been corrected.
The DIC has different modes which can be accessed by
pressing the four buttons on the DIC. These buttons
are trip information, fuel information, personalization and
select. The button functions are detailed in the
following.
3-46

Trip Information Button
Press the trip information button to scroll through the
ODOMETER, PERSONAL TRIP ON/OFF, BUSINESS
TRIP ON/OFF, HOURMETER, ANNUAL LOG and
TIMER. If the personal trip and/or the business trip are
set to ON, you will also be able to scroll through
more messages. See ªPersonal Tripº and ªBusiness
Tripº next for more information.
If your vehicle is not equipped with the DIC steering
wheel buttons you can select the trip information
by pressing the trip odometer reset stem on the
instrument panel cluster.
Personal Trip
Turn PERSONAL TRIP on or off by pressing the select
button. When it is on, you will also be able to scroll
through the following by pressing the trip information
button:
·PERSONAL: XXXXXX.X MI Ð This shows the
current distance traveled since the last reset for the
personal trip odometer in either miles or kilometers.
·PERSONAL: XXXX.X GAL Ð This shows the
amount of fuel used for the personal trip.
·PERSONAL: XX.X MPGÐ This shows how many
miles per gallon of fuel your vehicle is getting for
the personal trip based on current and past driving
conditions.
·PERSONAL: XXX.X AVG MPH Ð This shows the
vehicle's average speed for the personal trip.
·PERSONAL: % ANNUAL Ð This shows the ratio of
personal trip miles to annual miles as a percent.
You can reset the personal trip odometer by pressing
and holding the trip odometer reset stem.
Business Trip
Turn BUSINESS TRIP on or off by pressing the select
button. When it is on, you will also be able to scroll
through the following by pressing the trip information
button:
·BUSINESS: XXXXXX.X MI Ð This shows the
current distance traveled since the last reset for the
business trip odometer in either miles or kilometers.
·BUSINESS: XXXX.X GAL Ð This shows the
amount of fuel used for the business trip.
·BUSINESS: XX.X MPG Ð This shows the amount
of fuel used for the business trip.
·BUSINESS: XXXX.X AVG MPH Ð This shows the
vehicle's average speed for the business trip.
·BUSINESS: % ANNUAL Ð This shows the ratio of
business trip miles to annual miles as a percent.
3-47

Fuel Information Button
Use the fuel information button to scroll through the
range, average fuel economy, instant fuel economy and
the GM Oil Life System.
If your vehicle is not equipped with the DIC steering
wheel control buttons you will not be able to display the
fuel information.
Fuel Range
Press the fuel information button until RANGE appears
to display the remaining distance you can drive
without refueling. It's based on fuel economy and the
fuel remaining in the tank. The display will show LOW if
the fuel level is low.
The fuel economy data used to determine fuel range is
an average of recent driving conditions. As your
driving conditions change, this data is gradually updated.
Fuel range cannot be reset.
Average Fuel Economy
Press the fuel information button until AVG ECON
appears in the display. Average fuel economy is how
many miles per gallon your vehicle is getting based on
current and past driving conditions.Press and hold the select button for two seconds while
AVG ECON is displayed to reset the average fuel
economy. Average fuel economy will then be calculated
starting from that point. If the average fuel economy
is not reset, it will be continually updated each time
you drive.
Instant Fuel Economy
Press the fuel information button until INST ECON
appears in the display. Instant fuel economy is how
many miles per gallon your vehicle is getting at
the particular moment in time. The instant fuel economy
cannot be reset.
GM Oil Life System
Press the fuel information button until ENGINE OIL LIFE
appears in the display. The GM Oil Life System shows
an estimate of the oil's remaining useful life. It will show
100% when the system is reset after an oil change. It
will alert you to change your oil on a schedule consistent
with your driving conditions.
Always reset the engine oil life after an oil change. To
reset the Oil Life System use the fuel button to reach the
ENGINE OIL LIFE screen and then press and hold
the select button for ®ve seconds while ENGINE OIL
LIFE is displayed. OIL LIFE RESET will appear on
the display for 10 seconds to let you know the system is
reset.
3-49

Easy Exit Driver Seat
Press the personalization button until EASY EXIT
DRIVER SEAT appears in the display. To select your
personalization for seat position exit, press the
select button while EASY EXIT DRIVER SEAT is
displayed on the DIC. Pressing the select button will
scroll through the following choices:
EASY EXIT SEAT: OFF (default):No seat exit recall
will occur.
EASY EXIT SEAT: ON:The driver's seat will move to
the exit position when the key is removed from the
ignition.
Choose one of the two options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature. For more
information on seat position exit see
Memory Seat on
page 2-48.
Display Units (ENG/MET)
Press the personalization button until DISPLAY UNITS
appears in the display. To select English or metric,
press the select button while DISPLAY UNITS is
displayed on the DIC. Pressing the select button will
scroll through the following choices:
·UNITS: ENGLISH
·UNITS: METRICIf you choose English, all information will be displayed
in English units. For example, distance in miles and fuel
economy in miles per gallon.
Choose one of the two options and press the
personalization button while it is displayed on the DIC to
select it and end out of the personalization options.
Display Language
To select your personalization for display language,
press the select button while DISPLAY LANGUAGE is
displayed on the DIC. Pressing the select button
will scroll through the following languages:
·English
·French
·Spanish
Choose one of the three options and press the
personalization button while it is displayed on the DIC to
select it.
If you accidentally choose a language that you don't
want or understand, press and hold the personalization
button and the trip information button at the same
time. The DIC will begin scrolling through the languages
in their particular language. English will be in English,
French will be in French and so on. When you see
the language that you would like, release both buttons.
The DIC will then display the information in the
language you chose.
3-56

You can also scroll through the different languages by
pressing and holding the trip reset stem for four
seconds, as long as you are in the odometer mode.
Select Button
The select button is used to reset certain functions and
turn off or acknowledge messages on the DIC display.
The select button also toggles through the options
available in each personalization menu. For example,
this button will reset the trip odometers, turn off the
FUEL LEVEL LOW message, and toggle through the
languages you can select the DIC to display
information in.
DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed and
that some action may be needed by the driver to
correct the condition. If there is more than one message
that needs to be displayed they will appear one after
another. Some messages may not require immediate
action but you should press the select button to
acknowledge that you received the message and clear it
from the display. Some messages cannot be cleared
from the display because they are more urgent;
these messages require action before they can beremoved from the DIC display. The following are the
possible messages that can be displayed and some
information about them.
BATTERY NOT CHARGING
If the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked as soon as possible. Pressing the
select button will acknowledge this message and clear it
from the DIC display.
BUCKLE SEATBELT
If your vehicle is equipped with the passenger sensing
system, this message reminds you to buckle the
driver's and/or passenger's seatbelt. See
Passenger
Sensing System on page 1-81. The message will come
on and a chime will sound when the ignition is in
RUN and the following conditions occur:
·The driver's seatbelt is unbuckled.
·The driver's seatbelt is unbuckled and the
passenger's seatbelt is unbuckled with the
passenger airbag enabled.
Press the select button to acknowledge the message
and clear it from the DIC display.
3-57

ENGINE COOLANT HOT
If the cooling system temperature gets hot, this message
will appear in the DIC. Stop the vehicle and let the
engine idle in PARK (P) to allow the coolant to reach a
safe temperature. This message will clear when the
coolant temperature drops to a safe operating
temperature.
ENGINE OVERHEATED
If the engine cooling system reaches unsafe
temperatures for operation, this message will appear in
the DIC and you will hear a chime. Stop and turn off
the vehicle as soon as it is safe to do so to avoid severe
damage. This message will clear when the engine
has cooled to a safe operating temperature.
FUEL LEVEL LOW
If the fuel level is low, this message will appear on the
DIC and you will hear a chime. Refuel as soon as
possible. Pressing the select button will acknowledge
this message immediately and clear it from the DIC
display. It will also clear itself after 10 seconds until the
next ignition cycle. The low fuel light near the fuel
gage will still remain on in either case.
KEYFOB X BATTERY LOW
If a remote keyless entry transmitter battery is low, this
message will appear on the DIC. The battery needs
to be replaced in the transmitter. Pressing the select
button will acknowledge this message and clear it from
the DIC display.
LEFT REAR DOOR AJAR
If the driver's side rear door is not fully closed and the
vehicle is in a drive gear, this message will appear
on the display and you will hear a chime. Stop and turn
off the vehicle, check the door for obstacles, and
close the door again. Check to see if the message still
appears on the DIC. Pressing the select button will
acknowledge this message and clear it from the DIC
display.
LOW COOLANT LEVEL
If your vehicle is equipped with low coolant level sensor,
this message will appear on the DIC if the engine
coolant level is low. Adding coolant will clear the
message.
OIL LIFE RESET
This message will appear on the display for about
10 seconds after resetting the change engine oil
message.
3-59