If the Light is Flashing
The following may prevent more serious damage to
your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible
If the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart
the engine. If the light remains on steady, see “If the
Light Is On Steady” following. If the light is still ashing,
follow the previous steps, and see your dealer for
service as soon as possible.
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. SeeFilling Your Tank on page 5-7. The
diagnostic system can determine if the fuel cap hasbeen 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.
SeeGasoline Octane on page 5-5. 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.
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Cruise Control Light
This light comes on
whenever you set your
cruise control.
The light will go out when the cruise control is
turned off. SeeCruise Control on page 3-23for
more information.
Highbeam On Light
This light comes on
whenever the high-beam
headlamps are on.
See “Headlamp High/Low-Beam Changer” under
Turn Signal/Multifunction Lever on page 3-10for
more information.
Fuel Gage
The fuel gage shows
approximately how much
fuel is in the tank. It works
only when the ignition
is in ON.
If the fuel supply gets low, the Fuel Level Low message
will appear on the DIC and a single chime will sound.
SeeDIC Warnings and Messages on page 3-70
for more information.
CTS shown,
CTS-Vsimilar
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Here are a few concerns some owners have had about
the fuel gage. All of these situations are normal and
do not indicate that anything is wrong with the fuel gage:
At the gas station the gas pump shuts off before
the gage reads full.
The gage may change when you turn, stop quickly
or accelerate quickly.
It takes a little more or less fuel to ll the tank than
the gage indicated. For example, the gage may
have indicated that the tank was half full, but
it actually took a little more or less than half the
tank’s capacity to ll the tank.
Message Center
Message Center (CTS-V)
The message center can display information relating to
powertrain uids, tire pressures, vehicle dynamics,
speedometer and odometer information, and
transmission status. It also displays warning messages.
There are two different areas where message center
information will be displayed. One display is inside of the
tachometer and the other is inside of the speedometer.These are the controls for
the message center.
They are located on
the left spoke of the
steering wheel.
The outboard switch controls the display of information
inside of the tachometer. The upper button on the
inboard switch controls the display of information inside
of the speedometer. The lower button on the inboard
switch turns the traction control on or off. SeeDriving at
Night on page 4-18for more information.
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Vehicle Information Menu
(Base Audio System)
To access this menu using the Base audio system,
press the up or down arrow on the INFO switch located
to the right of the display.
The following items are available:
BLANK LINE
OUTSIDE TEMP
MI TRIP A*
MI TRIP B*
MILES RANGE
MPG AVG*
MPG INST
GAL FUEL USED*
AVG MPH*
TIMER*
BATTERY VOLTS
ENGINE OIL LIFE*
TRANS FLUID LIFE* (Automatic Transmission Only)* These items can be reset. Each one must be reset
individually. For a detailed description of the menu items
and how to reset them, see “Vehicle Information
Menu Item Descriptions” later in this section.
You can view any of these items at any time, but only
one item can be displayed at a time.
Vehicle Information Menu
(Navigation System)
To access the Vehicle Info menu using the Navigation
system, press the INFO button to the left of the
screen. You can also access this menu through the
Setup menu. See “Setup Menu” in the Index of the CTS
Entertainment and Navigation System owner’s manual.
The following submenu appears when Vehicle Info
is selected:
Outside Air Temperature
Trip Odometer A*
Trip Odometer B*
Fuel Range
Average Fuel Economy*
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Instantaneous Fuel Economy
Fuel Used*
Average Vehicle Speed*
Timer*
Battery Voltage
Engine Oil Life*
Transmission Fluid Life* (Automatic Transmission
Only)
Blank Display
* These items can be reset. Each one must be reset
individually. For a detailed description of the menu items
and how to reset them, see “Vehicle Information
Menu Item Descriptions” following.
You can view any of these submenu items at any time
by selecting them using the TUNE/SEL knob. The
currently selected item is displayed at the top of the
screen. Only one item can be displayed at a time.
Vehicle Information Menu
Item Descriptions
The following paragraphs contain a more detailed
description of each menu item:
BLANK LINE/Blank Display:If you select this item,
nothing is displayed at the top of the screen.
OUTSIDE TEMP/Outside Air Temperature:If you
select this item, the current outside temperature
is displayed at the top of the screen. It will be in either
degrees Fahrenheit or degrees Celsius depending
upon whether the system is set for English or metric
units. If you wish to change the units on the Base audio
system, seeDIC Main Menu on page 3-66.Ifyou
have the optional Navigation System and wish to change
the units, see “Setup Menu” in the Index of the CTS
Entertainment and Navigation System owner’s manual.
MI TRIP A and B/Trip Odometer A and B:For
information on the trip odometers, see “Trip Odometers”
underSpeedometer and Odometer on page 3-40.
MPG AVG/Average Fuel Economy:If you select this
item, the approximate average miles per gallon (mpg) or
liters per 100 kilometers (L/100 km) is displayed.
This number is calculated based on the number of
mpg (L/100 km) recorded since the last time this menu
item was reset.
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To reset the MPG AVG using the Base audio system,
press the CLR button located to the right of the screen.
The display will return to zero.
To reset the Average Fuel Economy using the Navigation
system, press and hold the multifunction button that
corresponds to the Reset prompt in the upper right of the
display. The display will return to zero.
MPG INST/Instantaneous Fuel Economy:If you
select this item, the current fuel economy is displayed.
This number re ects only the fuel economy that the
vehicle has right now and will change frequently
as driving conditions change. Unlike average fuel
economy, this menu item cannot be reset.
GAL FUEL USED/Fuel Used:If you select this item,
the number of gallons or liters of fuel used since the last
reset of this menu item is displayed.
To reset GAL FUEL USED using the Base audio
system, press the CLR button located to the right of the
screen. The display will return to zero.
To reset Fuel Used using the Navigation system, press
and hold the multifunction button that corresponds to
the Reset prompt in the upper right of the display.
The display will return to zero.MILES RANGE/Fuel Range:If you select this item, the
approximate number of remaining miles or kilometers
you can drive without refueling is displayed. This
estimate is based on the current driving conditions and
will change if the driving conditions change. For
example, if you are driving in traffic making frequent
stops, the display may read one number, but if you enter
the freeway, the number may change even though
you still have the same amount of gas in the gas tank.
This is because different driving conditions produce
different fuel economies. Generally, freeway driving
produces better fuel economy than city driving.
If your vehicle is low on fuel, the Low Fuel Level
message will be displayed. See “Low Fuel Level
Message” underDIC Warnings and Messages on
page 3-70for more information.
AVG MPH/Average Vehicle Speed:If you select this
item, the average speed of the vehicle is displayed 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 menu item.
To reset AVG MPH using the Base audio system, press
the CLR button located to the right of the screen.
The display will return to zero.
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Engine Overheated – Stop Engine
This symbol appears
with the Engine
Overheated – Stop
Engine message.
This message will appear when the engine has
overheated. Stop the vehicle and turn the engine off
immediately to avoid severe engine damage. See
Engine Overheating on page 5-31. 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 5-31for more information.
Engine Power Reduced
This symbol appears
with the Engine Power
Reduced message.
This message informs you that the vehicle is reducing
engine power to try to protect the engine or transmission
from damage due to extreme operating conditions.
This also can affect the vehicle’s ability to accelerate.
Fuel Level Low
This symbol appears
with the Fuel Level
Low message.
When this message appears on the display, it means
that your vehicle is low on fuel. You should re ll the tank
as soon as possible. A single chime will sound when
this message is displayed.
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Service Air Bag
This symbol appears
with the Service Air
Bag message.
There is a problem with the airbag system when this
message appears. Have your vehicle serviced by your
GM dealer immediately. SeeAirbag Readiness Light
on page 3-42for more information.
Service Charging System
This symbol appears with
the Service Charging
System message.
This message will display when a problem with the
charging system has been detected. Have your vehicle
serviced by your GM dealer.
Service Electrical System
This symbol appears with
the Service Electrical
System message.
This message will display if an electrical problem has
occurred within the Powertrain Control Module (PCM) or
the ignition switch. Have your vehicle serviced by
your GM dealer.
Service Fuel System
This symbol appears
with the Service Fuel
System message.
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.
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