fuel CADILLAC SEVILLE 2003 5.G User Guide

Vehicle Speed Limiter
This feature prevents your vehicle from exceeding
speeds that the tires are not rated for. When this
happens, the engine's fuel supply is shut off. When
the vehicle speed slows, the fuel supply will come
on again.
Tachometer
This gage indicates the
engine speed in
revolutions per
minute (rpm).
Notice:Do not operate the engine with the
tachometer in the shaded warning area, or engine
damage may occur.
Engine Speed Limiter
This feature prevents the engine from operating at too
many revolutions per minute (rpm). When the engine's
rpm are critically high, the fuel supply to the engine
is shut off. When the engine speed slows, the fuel
supply will come on again. This helps prevent damage
to the engine.
Safety Belt Reminder Light
When the key is turned to ON or START, a chime will
come on for several seconds to remind people to fasten
their safety belts.
The safety belt light will
also come on and stay on
for several seconds. If
the driver's belt is already
buckled, the light will
come on brie¯y, but the
chime will not sound.
3-41

Malfunction Indicator Lamp
Service Engine Soon Light in the
United States or Check Engine Light in
Canada
Your vehicle is equipped with a computer which
monitors operation of the fuel, ignition and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment.The SERVICE ENGINE SOON or CHECK ENGINE light
comes on to indicate that there is a problem and
service is required. Malfunctions often will be indicated
by the system before any problem is apparent. This
may prevent more serious damage to your vehicle. This
system is also designed to assist your service
technician in correctly diagnosing any malfunction.
Notice:If you keep driving your vehicle with this
light on, after a while, your emission controls
may not work as well, your fuel economy may not
be as good and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.
Notice:Modi®cations made to the engine,
transaxle, exhaust, intake or fuel system of your
vehicle or the replacement of the original tires with
other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle's emission
controls and may cause this light to come on.
Modi®cations to these systems could lead to costly
repairs not covered by your warranty. This may
also result in a failure to pass a required Emission
Inspection/Maintenance test. United StatesCanada
3-47

This light should come on, as a check to show you it is
working, when the ignition is on and the engine is
not running. If the light does not come on, have it
repaired. This light will also come on during a
malfunction in one of two ways:
·Light FlashingÐ A mis®re condition has been
detected. A mis®re increases vehicle emissions
and may damage the emission control system on
your vehicle. Diagnosis and service may be
required.
·Light On SteadyÐ An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
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 ªIf
the Light Is On Steadyº 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 ªIf
the Light Is On Steadyº 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. See
Filling Your Tank on page 5-6. 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.
3-48

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 in order to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the SERVICE
ENGINE SOON or 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, your GM dealer can prepare the
vehicle for inspection.
3-49

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 down to approximately three
gallons (11.4 L) of fuel remaining in the tank, the FUEL
LEVEL LOW message will appear on the Driver
Information Center (DIC) and a single chime will sound.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.
·GAL FUEL USED on the DIC does not correspond
exactly to the amount of fuel remaining as shown
on the fuel gage.
·The gage may change when you turn, stop quickly
or accelerate quickly.
United States
Canada
3-52

Driver Information Center (DIC)
This display gives you the status of many of your
vehicle's systems. The DIC is also used to display driver
personalization features and warning/status messages.
All messages will appear in the DIC display, located
at the bottom of the instrument panel cluster.
DIC Controls and Displays
The Driver Information Center (DIC) buttons are located
to the right of the steering wheel on the instrument
panel, near the air outlets.
«INFOª(Information):Pressing this button up or
down will display the OUTSIDE TEMP, MILES RANGE,
MPG AVG, MPG INST, GAL FUEL USED, AVG
MPH, TIMER, BATTERY VOLTS, LF-RF-LR-RR TIRE
(If Equipped), ENGINE OIL LIFE, TRANS FLUID
LIFE, PHONE (Option) and FEATURE PROGRAMMING
and Blank Display.
INFO (Information) RESET:Pressing this button will
reset the MPG AVG, GAL FUEL USED, AVG MPH,
TIMER, ENGINE OIL LIFE and TRANS FLUID LIFE. For
more information about the trip odometer, see
Speedometer and Odometer on page 3-39.
·MPG AVG (Average Miles per Gallon):This
message shows the approximate fuel economy you
have averaged since the last time you reset the
value. To reset the MPG AVG (Average Fuel
Economy), press the INFO button to display the
MPG AVG then press and hold the INFO RESET
button until 0.0 MPG AVG is displayed.
·GAL (Gallons) FUEL USED:This message shows
how much fuel has been used since the last reset.
To learn how much fuel is used from a new
starting point, press the RESET button while the
GAL FUEL USED is displayed in the DIC.
3-53

OUTSIDE TEMP (Temperature):This message shows
the outside temperature. After this display has been
on the DIC for about ®ve seconds, the words OUTSIDE
TEMP will disappear so that only the temperature
remains.
MILES RANGE:This message shows about how many
miles you can drive without re®lling your fuel tank.
Once the range drops below 40 miles (64 km) remaining,
the display will show LOW.
MPG INST (Instantaneous Miles per Gallon):This
message shows the instantaneous fuel economy which
varies with your driving conditions, such as acceleration,
braking and the grade of the road being traveled.
The INFO RESET button does not function in this mode.
BATTERY VOLTS:This message shows the current
battery voltage. If the voltage is normal the display
will show BATTERY VOLTS OK. If the voltage drops
below 10.5 volts, the display will show BATTERY
VOLTS LOW. If the voltage is above 16 volts, the
display will show BATTERY VOLTS HIGH. If the display
shows the high or low message, you will need to
have your battery checked. See
DIC Warnings and
Messages on page 3-56for more information.LF-RF-LR-RR TIRE (If Equipped):On vehicles
equipped with the tire pressure monitor, this message
shows the tire pressure for each tire (left front, right
front, left rear and right rear). Pressing the INFO button
will scroll through the tire pressure for each of the
four tires, such as the following:
·34 PSI LF TIRE OK or
·234 kPa LF TIRE OK
If a tire pressure is below 25 PSI (172 kPa) or above
38 PSI (265 kPa), the message will appear as shown
above except it will show TIRE LOW or TIRE HIGH as
appropriate. If desired, the tire pressure information
can be programmed not to appear when using the INFO
button to scroll through the DIC displays. See
DIC
Vehicle Personalization on page 3-64.
If a low or high tire pressure is detected by the system
while driving, a CHECK TIRE PRESSURE message
will appear in the display. If this occurs, press the INFO
button to scroll to the tire(s) with a low or high
pressure condition. See
DIC Warnings and Messages
on page 3-56for more information.
ENG/MET (English/Metric):Press this button to
display information in the English (miles) or metric
(kilometers) system.
3-55

CHANGE ENGINE OIL ± 82:This means that the life
of the engine oil has expired and it should be changed
within 200 miles. After an oil change, the Oil Life
Indicator must be reset. See
Oil Life Indicator on
page 3-77. SeeEngine Oil on page 5-13.
CHANGE TRANS FLUID ± 47:This message will
appear when it is time to change the transaxle ¯uid. See
Part A: Scheduled Maintenance Services on page 6-4for the proper ¯uid and change intervals.
CHECK BRAKE FLUID ± 37:This message will
display if the ignition is in ON to inform the driver that
the brake ¯uid level is low. Have the brake system
serviced by a technician as soon as possible. See
Brake
System Warning and Parking Brake Indicator Light on
page 3-43
.
CHECK COOLANT LEVEL ± 2: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
Engine Coolant on page 5-25.CHECK FUEL GAGE ± 50:This message will appear
when the fuel supply is less than 5 gallons (18.9 L)
and the display is turned off. A single chime will also
sound when this message is displayed.
CHECK GAS CAP ± 61:This message will appear if
the gas cap has not been fully tightened. You should
recheck your gas cap to ensure that it's on properly.
CHECK OIL LEVEL ± 36:For correct operation of the
low oil sensing system, your vehicle should be on a
level surface. A false CHECK OIL LEVEL message may
appear if the vehicle is parked on a grade. The oil
level sensing system does not check for actual oil level
if the engine has been off for a short period of time,
and the oil level is never checked while the engine is
running. If the CHECK OIL LEVEL message appears,
and your vehicle has been parked on level ground
with the engine off for at least 30 minutes, the oil level
should be checked by observing the oil dipstick. Prior to
checking the oil level, be sure the engine has been
off for a few minutes and your vehicle is on a level
surface. Then check the dipstick and add oil if
necessary. See
Engine Oil on page 5-13.
3-57

CHECK WASHER FLUID ± 25:This message means
that your vehicle is low on windshield washer ¯uid.
See
Windshield Washer Fluid on page 5-39.
DRIVER DOOR AJAR ± 140:This message will
display anytime the key is in ON, the transaxle is not in
PARK (P) and the driver's door is open or ajar. A
chime will sound when the vehicle's speed is greater
than 3 mph (4.8 km/h).
DRIVE NO. X (1 OR 2):This message will be displayed
with the key in ON and while entering FEATURE
PROGRAMMING, but only if the vehicle is equipped
with memory seats. The message will show which driver
is activating the personalization feature. It will only
stay on for ®ve seconds. This message can be
customized for you by your dealer.
ENGINE COOLANT HOT, IDLE ENGINE ± 44:This
message will appear when the engine coolant
temperature is over 262ÉF (128ÉC). Stop and allow your
vehicle to idle in PARK (P) until it cools down and the
message is removed. Do not increase engine speed
above a normal idle. If it does not cool down, turn off the
engine and have it serviced before driving it again.
Severe engine damage can result from an overheated
engine. See
Engine Overheating on page 5-28.ENGINE HOT±AC OFF ± 16: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 A/C operation will automatically resume. 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.
ENGINE OVERHEATED, STOP ENGINE ± 42:This
message will appear when the engine has overheated.
Stop and turn the engine off immediately to avoid
severe engine damage. See
Engine Overheating on
page 5-28. A multiple chime will also sound when this
message is displayed.
ENGINE POWER REDUCED ± 41:This message
informs you that the vehicle is reducing engine power
because the transaxle is being placed in gear under
conditions that may cause damage to the vehicle's
engine, transaxle or ability to accelerate.
FUEL LEVEL LOW ± 11:This message serves as a
warning that the fuel level in the tank is critically
low. Stop for fuel soon. A single chime will sound when
this message is displayed.
3-59

SERVICE ELECTRICAL SYS ± 106: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 dealership.
SERVICE FUEL SYSTEM ± 101:The Powertrain
Control Module (PCM) has detected a problem within
the fuel system when this message appears. Have your
vehicle serviced by your dealership.
SERVICE IDLE CONTROL ± 107:A problem with the
idle control has occurred when this message displays.
Have your vehicle serviced by your dealership.
SERVICE STABILITY SYS ± 54:If you ever see the
SERVICE STABILITY SYS message, it means
there may be a problem with your stability enhancement
system. If you see this message, try to reset the
system (stop, turn off the engine, then start the engine
again). If the SERVICE STABILITY SYS message
still comes on, it means there is a problem. You should
see your dealer for service. Reduce your speed and
drive accordingly. A single chime will also sound when
this message is displayed.
SERVICE STEERING ± 127:This message is displayed
when a problem has been detected in the magnetic
speed variable assist steering system. If message
comes on, service is required.SERVICE SUSPENSION SYS ± 84:This message is
displayed to indicate that the suspension system is
not operating properly. To correct this problem, have
your vehicle serviced at your dealership.
SERVICE THEFT SYSTEM ± 34:This message means
there is a problem with the PASS-Key
žIII system. A
fault has been detected in the system which means that
the system is disabled and is not protecting the
vehicle. The vehicle usually restarts, however, you may
want to take your vehicle to your dealer before turning
off the engine.
SERVICE TPM SYSTEM ± 51:When this message is
displayed, the Tire Pressure Monitor (TPM) system
is not working properly. See your dealer for service.
SERVICE TRANSMISSION ± 100:See your dealer
for repair.
SERVICE VEHICLE SOON ± 3:This message is
displayed when a non-emissions related powertrain
malfunction occurs. Have your vehicle serviced by
a technician as soon as possible.
SPEED LIMIT TO 90 ± 113:A failure in the suspension
control system has occurred when this message
appears. The Powertrain Control Module (PCM)
determines the speed to which your vehicle is limited.
Have your vehicle serviced if this message appears.
3-61