fuel CADILLAC DEVILLE 2003 8.G User Guide

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 5-7. 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.
3-52

Cruise Control Light
This light comes on
whenever the cruise
control system is in use. It
will go out when the
system is turned off.
See ªCruise Controlº under
Turn Signal/Multifunction
Lever on page 3-8for 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 down to approximately 3 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.
On the digital cluster, if the fuel is less than
approximately 1.2 gallons (4.7 L) the E segment on the
gage will ¯ash. The fuel range on the Driver Information
Center (DIC) will display ªLO.º
Analog (United States)Analog (Canada)
Digital Cluster
3-55

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.
Fuel Data Display
(Digital Cluster Only)
The fuel data display tells
you all you about the fuel
economy and how far
you can travel with the fuel
remaining.The average fuel economy (AVG) display shows the
average miles per U.S. gallon.
To reset the average fuel economy, press the INFO
button until the MPG AVG is displayed on the DIC.
Press and hold the INFO RESET button until both the
fuel data display and DIC display reads 0.0.
The RANGE display shows how far the computer thinks
you can travel with the fuel that is in the tank. The
computer does not know what driving conditions will be
like for the rest of your trip, so the range is estimated
based on the recent fuel economy. Therefore, the range
reading may change as your driving habits change.
Going from city to highway driving may increase
the range reading.
On the analog cluster, fuel data can be obtained by
pressing the INFO button. SeeDriver Information Center
(DIC) on page 3-57.
3-56

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 MILES RANGE (Analog Cluster),
MPG AVG, MPG INST, GAL FUEL USED, AVG
MPH, TIMER, BATTERY VOLTS, LF-RF-LR-RR TIRE
(If Equipped), RPM TACHOMETER (Digital Cluster),
ENGINE OIL LIFE, TRANS FLUID LIFE, PHONE
(If Equipped), FEATURE PROGRAMMING and Blank
Display.
INFO 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
Trip Odometer on
page 3-43.
·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.
3-57

·AVG MPH (Average Miles per Hour):This
message shows the average speed you have
traveled at since the last time you reset the value.
To reset the value, press the INFO button to
display AVG MPH then press and hold the INFO
RESET button until 0.0 AVG MPH is displayed.
·TIMER:This feature is like a stopwatch, in that you
can clock the time it takes to get from one point to
another.
To operate, press the INFO button to display
TIMER. Each of the ®elds for the hours, minutes
and seconds are two numeric digits.
Once TIMER 00:00:00 is displayed, press the
ON/OFF button to start the timing feature. Press
the ON/OFF button again to stop it. If you will
be starting and stopping your vehicle, during a trip
for instance, the TIMER feature will automatically
start timing where it left off when you last stopped.
To reset it, press and hold the INFO RESET
button until the display reads TIMER 00:00:00.
Press the INFO button to exit from the TIMER
display.
·ENGINE OIL LIFE:Press the INFO button to
display ENGINE OIL LIFE, then press and hold the
INFO RESET button until 100% ENGINE OIL
LIFE is displayed. (This only needs to be reset after
you have had the oil changed.)
·TRANSMISSION FLUID LIFE:Under normal
conditions, the rate of deterioration of the
transmission ¯uid is slow. See
Part A: Scheduled
Maintenance Services on page 6-4for proper
¯uid and change intervals. To reset the transmission
¯uid life, press the INFO button to display TRANS
FLUID LIFE, then press and hold the INFO
RESET button until 100% TRANS FLUID LIFE is
displayed. (This only needs to be reset after
you have had the ¯uid changed.)
ON/OFF:Pressing this button turns the Programming
and Personalization Features on and off. (FEATURE
PROGRAMMING must be displayed on the DIC to begin
actual programming.) This button also starts and
stops the timer.
MILES RANGE:(Analog Cluster Only) 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.
3-58

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 3-60for more information.
LF-RF-LR-RR TIRE: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:
·34 PSI LF TIRE OK or
·234 kPa LF TIRE OKIf 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 3-67.
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 3-60later in this section for more information.
ENG/MET (English/Metric):Press this button,
located to the left of the steering wheel on the instrument
panel, to display information in the English (miles) or
metric (kilometers) system.
3-59

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 3-79. 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 3-47
.
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 5-24.
CHECK FUEL GAGE ± 50:(Analog Cluster) 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.
CHECK TIRE PRESSURE ± 144:This message is
displayed when the Tire Pressure Monitor (TPM) system
detects a low or high tire pressure condition in one or
more of the road tires. By pressing the INFO button up or
down, the DIC display will show which tire or tires do not
have the correct in¯ation pressure. A ªLOW TIREº
condition exists when the tire's air pressure is under
25 psi (172 kPa) and a ªHIGH TIREº condition exists
when the tire's air pressure is above 38 psi (262 kPa).
The system will display the air pressure, the tire location
(LF, RF, RR or LR) and if the air pressure is low or high.
The tire pressure information is available in English or
metric measurements. For example, a driver's side front
tire that is low may be shown as: 22 PSI LF TIRE LOW.
3-61

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 5-27.
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 5-27.
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.
HEADLAMPS SUGGESTED ± 23:If it's dark enough
outside and the headlamps and Twilight Sentinel
ž
controls are off, this message will display on the DIC.
This message informs the driver that turning on the
exterior lamps is recommended even though the DRL
are still illuminated. It has become dark enough outside
to require the headlamps and/or other exterior lamps.
This message will also appear if the optional
RainsenseŸ wiping feature is on and the Twilight
Sentinel
žis off.
ICE POSSIBLE ± 13:This message appears when the
outside air temperature is cold enough to create icy
road conditions.
LEFT REAR DOOR AJAR ± 142:The left rear door is
open or ajar when this message appears. The ignition
must be in ON and the transaxle not in PARK (P) for this
message to display. A chime will sound if the vehicle's
speed is greater than 3 mph (5 km/h).
OIL PRESSURE LOW STOP ENGINE ± 35:If this
message appears while the engine is running, stop the
engine and do not operate it until the cause of low oil
pressure is corrected. Severe damage to the engine can
result. A multiple chime will sound when this message is
displayed.
3-63

PASSENGER DOOR AJAR ± 141:The right front
passenger's door is open or ajar when this message
appears. The ignition must be in ON and the transaxle
not in PARK (P) for this message to display. A chime
will sound if the vehicle's speed is greater than
3 mph (5 km/h).
RIGHT REAR DOOR AJAR ± 143:The right rear door
is open or ajar when this message appears. The
ignition must be in ON and the transaxle not in PARK (P)
for this message to display. A chime will sound if the
vehicle's speed is greater than 3 mph (5 km/h).
SERVICE AC SYSTEM ± 14:This message appears
when the electronic sensors that control the air
conditioning and heating systems are no longer working.
Have the climate control system serviced if you notice
a drop in heating and air conditioning efficiency.
SERVICE AIR BAG ± 83:There is a problem with the
air bag system when this message appears. Let
only a quali®ed technician work on your vehicle. Have
your vehicle serviced by your dealership immediately.
SERVICE CHARGING SYS ± 102:This message
will display when a problem with the charging system
has been detected. Have your vehicle serviced at
your dealership.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.
3-64

THEFT ATTEMPTED ± 40:This message is displayed
if the theft system has detected a break-in attempt
while you were away from your vehicle.
TOP SPEED FUEL CUT-OFF ± 111:This message will
appear when the Powertrain Control Module (PCM)
detects that the maximum speed for your vehicle has
been reached. The speed of your vehicle will surge
as the fuel supply is cut off. Your vehicle's top speed is
based on the top speed rating of the tires. This
ensures that your vehicle stays in a safe operating
range for the tires.
TRACTION ENGAGED ± 91:When your traction
control system is limiting wheel spin, the TRACTION
ENGAGED message will be displayed. Slippery
road conditions may exist if this message is displayed,
so adjust your driving accordingly. This message
will stay on for a few seconds after the traction control
system stops limited wheel spin.
TRACTION OFF ± 89:This message will be displayed
after the traction control system has been turned off using
the TRAC ON/OFF button on the center console.
TRACTION READY ± 90:This message informs the
driver that the traction control system is available.
Pressing the TRAC ON/OFF button on the center console
once turns the traction control system off; pressing the
button again turns the system back on. This message will
automatically disappear from the display after ®ve
seconds.TRACTION SUSPENDED ± 56:This message displays
when the traction control system has been temporarily
shut off because your vehicle's brakes have overheated.
This message does not indicate a problem with your
vehicle's traction control system. After a few minutes,
the traction control system will be available again
and the TRACTION READY message will appear.
TRANS HOT IDLE ENGINE ± 112:This message
indicates that the transaxle ¯uid in your vehicle is too
hot. Stop and allow your vehicle to idle until it cools
down or until this message is removed.
TRUNK OPEN ± 24:This message indicates that the
trunk is open when the ignition is on.
TURN SIGNAL ON ± 20:If you drive your vehicle for
more than a mile with a turn signal on, this message will
appear as a reminder to turn off the turn signal. A
multiple chime will sound when this message is
displayed.
VEHICLE OVERSPEED ± 52:This message is
displayed when the vehicle speed exceeds a certain
limit as required by some export countries. A continuous
chime will sound when this message is displayed.
3-66