2002 CADILLAC DEVILLE battery

2-95
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
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, see your dealer or qualified service center to
prepare the vehicle for inspection.

2-100
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.INFO (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 (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
ªOdometerº in the Index.

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.

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MILES RANGE: (Analog Cluster Only.) This message
shows about how many miles you can drive without
refilling 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 ªDriver Information
Center (DIC) Messagesº later in this section for
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:

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 ªVehicle
Programming and Personalization Featuresº in the Index.
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 ªDriver Information Center (DIC)
Messagesº later in this section for more information.
ENG/MET (English/Metric): Press this button to
display information in the English (miles) or metric
(kilometers) system.

2-103
Driver Information Center (DIC) Messages
These messages will appear if there is a problem sensed in
one of your vehicle's systems. Vehicles that are first sold
in Canada will have a number after each message. This
number helps to identify the problem. You must then press
INFO or INFO RESET to clear the display screen for
further use. However, be sure to take any message that
appears on the display screen seriously and remember that
pressing the INFO or INFO RESET button will only make
the message disappear, not the problem.
DIC messages can also be displayed in French, German,
Spanish and Japanese. Contact your dealer to have the
language display adjusted for your vehicle.
BATTERY NOT CHARGING
- 7: This message
will appear if the battery is not being charged. Have the
electrical system checked by your dealership at your
earliest convenience.
BATTERY SAVER ACTIVE
- 27: This message is
displayed when the vehicle has detected that the battery
voltage is dropping beyond a reasonable point. The
battery saver system will start reducing certain features
of the vehicle that you may not be able to notice. At the
point that features are disabled, this message is
displayed. It means that the vehicle is trying to save the
charge in the battery. Turn off unnecessary accessories
to allow the battery to recharge.BATTERY VOLTAGE HIGH
- 8: This message shows
that the electrical charging system is overcharging (more
than 16 volts). To avoid being stranded, have the electrical
system checked by your dealership. You can reduce the
charging overload by using the accessories. Turn on the
lamps and radio, set the climate control on AUTO and the
fan speed on HI, and turn the rear window defogger on.
You can monitor battery voltage on the DIC by pressing
the INFO button. The normal range is 11.5 to 15.5 volts
when the engine is running.
BATTERY VOLTAGE LOW
- 6: 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. You can monitor battery voltage on
the DIC by pressing the INFO button. The normal range
is 11.5 to 15.5 volts.

3-13
SOURCE: Press this button to select a source, either
cassette or compact disc. The audio source must be
loaded to play. Available loaded sources are shown on
the display. If a source is being used, it will be
underlined on the display. If none of the audio sources
are loaded, NO SOURCE LOADED will appear on the
display. Press this button again or press BAND to switch
back to the radio.
Finding a Station
BAND: Press this button to select AM, FM1 or FM2.
~' TUNE SEEK !': When this button is pressed it
has two positions. Press this button to the first position
to manually tune to the next or previous stations. If this
button is held at the first position for a few seconds, the
radio will continue tuning until this button is released.
Press this button to the second position and release it to
seek to the next or previous radio station.
SCAN: Press this button for less than two seconds
to scan radio stations and associated tone settings.
The radio will go to a station, play for five seconds,
then go on to the next station. Press this button again
to stop scanning.To scan preset stations, press and hold SCAN for more
than two seconds until you hear a beep. The radio will
go to the first preset station stored on your pushbuttons,
play for five seconds, then go on to the next preset
station. Press SCAN again to stop scanning. The radio
will scan preset stations with a strong signal only.
Setting Preset Stations
The six numbered pushbuttons let you return to
your favorite stations. You can set up to 18 stations
(six AM, six FM1 and six FM2), by performing the
following steps:
1. Turn the radio on.
2. Press BAND to select AM, FM1 or FM2.
3. Tune in the desired station.
4. Press and hold one of the six numbered pushbuttons
for more than two seconds until you hear a beep.
5. Repeat the steps for each pushbutton. Whenever
you press that numbered pushbutton for less than
two seconds, the station you set will return.
When battery power is removed and later applied, you
will not have to reset your radio presets because the
radio remembers them.

3-19
Setting Preset Stations
The six numbered pushbuttons let you return to your
favorite stations and associated tone and DSP settings.
The RDS PTY mode must be off to use this mode. You
can set up to 36 stations (six AM, six FM1, six FM2,
six XM1, six XM2 and six weather if your radio is
equipped with the XM Satellite Radio Service), by
performing the following steps:
1. Turn the radio on.
2. Press BAND to select AM, FM1, FM2, XM1, XM2
or weather.
3. Tune in the desired station.
4. Press and hold one of the six numbered pushbuttons
for more than two seconds. Whenever you press that
numbered pushbutton for less than two seconds, the
station you set will return.
5. Repeat the steps for each pushbutton.
When battery power is removed and later applied, you
will not have to reset your radio presets because the
radio remembers them.Setting the Tone (Bass/Treble)
TONE: Press and release this button until the desired
tone BASS, TREBLE or MIDRANGE appears on the
display. The radio keeps separate tone settings for each
band, preset (except weather band presets) and source.
- LEVEL +: After selecting the desired tone control,
press the plus or minus symbol on this button to select
the desired level.
To save the tone settings for your presets, press and hold
the numbered button for the desired preset for more than
two seconds until you hear a beep.
Adjusting the Speakers (Balance/Fade)
TONE: Press and release this button until BALANCE
or FADE appears on the display.
- LEVEL +: After selecting the desired control, press
the plus or minus symbol on this button to select the
desired level.
To save the tone settings for your presets, press and hold
the numbered pushbutton for the desired preset for more
than two seconds until you hear a beep.

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Your radio can store home and away presets. Home and
away presets allow you to use one set of preset radio
settings in the area where you live, and another set when
you go out of town. That way, you will not need to
reprogram your presets every time you travel. With the
radio off and the clock displayed, use fast forward and
reverse to select home or away presets. To select the
away presets, press and hold FF for five seconds until
you hear a beep. The next time the radio comes on, the
away presets will be active. To select the home presets,
press and hold RW or REV for five seconds until you
hear a beep. The next time the radio comes on, the home
presets will be active.
When battery power is removed and later applied, you
will not have to reset your home radio presets because
the radio remembers them. However, you will have to
reset your away radio presets.Theft-Deterrent Feature
THEFTLOCK
is designed to discourage theft of your
radio. Your vehicle has a ªbuilt
-inº theft-deterrent
feature on each radio that is automatic
-- there is no
programming required. The radio in your vehicle cannot
be used in any other vehicle. When the radio was
originally installed in your vehicle at the factory, it
stored the Vehicle Identification Number (VIN). Each
time the ignition is turned on, the VIN is verified. If the
vehicle's VIN does not match the VIN stored in the
radio, THEFTLOCK will be activated and the audio
system will not play. If the radio is removed from your
vehicle, the original VIN in the radio can be used to
trace the radio back to your vehicle.

3-33
Cellular Phone Usage
Cellular phone usage may cause interference with your
vehicle's radio. This interference may occur when
making or receiving phone calls, charging the phone's
battery or simply having the phone ªonº. This
interference is described as an increased level of static
while listening to the radio. If you notice static while
listening to the radio, unplug the cellular phone and turn
if off.
Weather Band (If Equipped)
Weather band is restricted to speech and the audio
quality is not as good as with the AM or FM bands.
Depending on location, the radio should receive one or
two channels.
Tips About Your Audio System
Hearing damage from loud noise is almost undetectable
until it is too late. Your hearing can adapt to higher
volumes of sound. Sound that seems normal can be loud
and harmful to your hearing. Take precautions by
adjusting the volume control on your radio to a safe
sound level before your hearing adapts to it.To help avoid hearing loss or damage do the following:
1. Adjust the volume control to the lowest setting.
2. Increase volume slowly until you hear comfortably
and clearly.
NOTICE:
Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two
-way radio -- be sure you can
add what you want. If you can, it's very
important to do it properly. Added sound
equipment may interfere with the operation of
your vehicle's engine, radio or other systems, and
even damage them. Your vehicle's systems may
also interfere with the operation of sound
equipment that has been added improperly.
So, before adding sound equipment, check with
your dealer and be sure to check federal rules
covering mobile radio and telephone units.