engine CADILLAC CTS 2003 1.G Owner's Guide

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Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
ªFuelº in the Index. 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, misfiring, 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,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix 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 in order 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 designed
to evaluate critical emission control systems during
normal driving. This may take several days of routine
driving. If you have done this and your vehicle still does
not pass the inspection for lack of OBD system
readiness, see your dealer or qualified service center to
prepare the vehicle for inspection.

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Oil Pressure Light
CAUTION:
Don't keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
This light tells you if there
could be a problem with
your engine oil pressure.
The light goes on when you turn your key to ON or
START. It goes off once you start your engine. That's a
check to be sure the light works. If it doesn't come on,
be sure to have it fixed so it will be there to warn you if
something goes wrong.
When the light comes on and stays on, it means that
oil isn't flowing through your engine properly. You
could be low on oil and you might have some other
system problem.

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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 button located to the
right of the display.
The following items are available:

BLANK LINE

OUTSIDE TEMP

MI TRIP A*

MI TRIP B*

FUEL 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 ªStatus Menu Item
Descriptionsº later in this section.
You can view any of these items at any time, but only
one item can be displayed at a time.

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Vehicle Info (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 ªSetup Menuº in the Index of the Navigation
supplement.
The following submenu appears when Vehicle Info
is selected:

Outside Air Temperature

Trip Odometer A*

Trip Odometer B*

Fuel Range

Average Fuel Economy*

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 ªStatus Menu Item
Descriptionsº 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.

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Battery Voltage/BATTERY VOLTS: If you select this
item, the current battery voltage is displayed. If the
voltage is in the normal range, the display will have OK
after it. For example, the display may read 13.2 Battery
Volts OK.
If there is a problem with the battery charging system,
there are four possible DIC messages that may be
displayed. See ªDriver Information Center (DIC)
Messagesº later in this section for more information.
Engine Oil Life/ENGINE OIL LIFE: If you select
this item, the percentage of remaining oil life is
displayed. If you see 99% Oil Life on the display, that
means that 99% of the current oil life remains.
When the oil life is depleted, the Change Engine Oil
message will appear on the display. You should change
the engine oil as soon as possible within 200 miles. Be
sure to keep a written record of the mileage and date of
the oil change so you will have it for future reference.
When you reset the Change Engine Oil message by
clearing it from the display, you still must reset the
engine oil life monitor separately. For more information
on resetting the engine oil life monitor, see ªOil Life
Monitor, How to Resetº in the Index.The engine oil life monitor does not check the amount
of oil your vehicle has, so you should check the oil level
periodically. See ªEngine Oilº in the Index for more
information.
Transmission Fluid Life/TRANS FLUID LIFE
(Automatic Transmission Only): If you select this
item, the percentage of remaining transmission fluid life
is displayed. If you see 99% Trans Fluid Life on the
display, that means that 99% of the current transmission
fluid life remains.
When the transmission fluid life is depleted, the Change
Transmission Fluid message will appear on the display.
You should change the engine oil as soon as possible
within 200 miles. Be sure to keep a written record of the
mileage and date of the oil change so you will have it
for future reference.
When you reset the Change Transmission Fluid message
by clearing it from the display, you still must reset the
transmission fluid life monitor separately. For more
information on resetting the engine oil life monitor, see
ªTransmission Fluid Life Monitor, How to Resetº in
the Index.

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Battery Saver Active
This symbol appears
with the Battery Saver
Active message.
This message appears when the system detects that the
battery voltage is dropping beyond a reasonable level.
The battery saver system will start reducing certain
features of the vehicle that you may not be able to
notice. At the point that the features are disabled, this
message is displayed. It means that the vehicle is trying
to save the charge in the battery.
Turn off all unnecessary accessories to allow the battery
to recharge.
The normal battery voltage range is 11.5 to 15.5 volts.
You can monitor battery voltage on the DIC by pressing
the INFO button until you find BATTERY VOLTS
(base audio system) or by selecting Battery Voltage
from the Vehicle Info menu (Navigation system).Battery Voltage HighThis symbol appears
with the Battery Voltage
High message.
This message indicates that the electrical charging
system is overcharging the battery. When the system
detects that the battery voltage is above approximately
16 volts, this message will be displayed.
To reduce the charging overload, use the vehicle's
accessories. Turn on the exterior lamps and radio, set the
climate control on AUTO and the fan speed on the
highest setting, and turn the rear window defogger on.
The normal battery voltage range is 11.5 to 15.5 volts
when the engine is running. You can monitor battery
voltage on the DIC by pressing the INFO button until
you find BATTERY VOLTS (base audio system) or by
selecting Battery Voltage from the Vehicle Info menu
(Navigation system).

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Battery Voltage Low
This symbol appears
with the Battery Voltage
Low message.
This message will appear when the electrical system
is charging less than 10 volts or if the battery has
been drained.
If this message appears immediately after starting, it is
possible that the generator can still recharge the battery.
The battery should recharge while driving but may take
a few hours to do so. Consider using an auxiliary
charger (be sure to follow the manufacturer's
instructions) to boost the battery after returning home or
to a final destination.
If this message appears while driving or after starting
your vehicle and stays on, have it checked immediately
to determine the cause of this problem.
To help the generator recharge the battery quickly, you
can reduce the load on the electrical system by turning
off the accessories.The normal battery voltage range is 11.5 to 15.5 volts.
You can monitor battery voltage on the DIC by pressing
the INFO button until you find BATTERY VOLTS
(base audio system) or by selecting Battery Voltage
from the Vehicle Info menu (Navigation system).
Change Engine Oil
This symbol appears
with the Change Engine
Oil message.
This message indicates that the life of the engine oil has
expired and it should be changed within 200 miles. See
ªEngine Oilº in the Index for more information.
When you reset the Change Engine Oil message by
clearing it from the display, you still must reset the
engine oil life monitor separately. For more information
on resetting the engine oil life monitor, see ªOil Life
Monitor, How to Resetº in the Index.

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Check Coolant Level
This symbol appears
with the Check Coolant
Level message.
This message will appear when there is a low level of
engine coolant. Have the cooling system serviced by a
technician as soon as possible. See ªEngine Coolantº in
the Index for more information.
Check Gas Cap
This symbol appears
with the Check Gas
Cap message.
When this message appears on the display, the gas cap
has not been fully tightened. You should recheck the gas
cap to ensure that it's on and tightened properly.Check Washer Fluid
This symbol appears
with the Check Washer
Fluid message.
When this message appears on the display, it means that
your vehicle is low on windshield washer fluid. You
should refill the tank as soon as possible. See
ªWindshield Washer Fluidº in the Index for more
information.
Driver Door Ajar
This symbol appears
with the Driver Door
Ajar message.
When this message appears on the display, it means that
the driver's door was not closed completely. You should
make sure that the driver's door is closed completely.

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Engine Coolant Hot -- Idle Engine
This symbol appears
with the Engine Coolant
Hot
-- Idle Engine message.
This message will appear when the engine coolant
temperature is too hot. Stop and allow the vehicle to idle
until it cools down.
NOTICE:
If the Engine Coolant Hot -- Idle Engine message
appears on the DIC display, stop the vehicle as
soon as possible. Do not increase the engine speed
above normal idling speed. Severe engine damage
can result from driving a vehicle with an
overheated engine. See ªEngine Overheatingº in
the Index for more information.
Engine Coolant Hot -- AC (Air Conditioning) Off
This symbol appears
with the Engine Hot
-- AC
Off message.
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 is automatically turned off. When the
coolant temperature returns to normal, the air
conditioning compressor will turn back on. You can
continue to drive your vehicle.
If this message continues to appear, have the system
repaired as soon as possible to avoid compressor
damage.

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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
ªEngine Overheatingº in the Index. A chime will also
sound when this message is displayed.
NOTICE:
Severe engine damage can result from driving a
vehicle with an overheated engine. See ªEngine
Overheatingº in the Index for 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 because the transmission is being placed
in gear under conditions that may cause damage to the
vehicle's engine or transmission. This also can affect the
vehicle's ability to accelerate.