air conditioning CADILLAC DEVILLE 1998 7.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine down or the message is removed. 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”
in
the Index.
ENGINE HOT - NC 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 so that air conditioned air is not delivered. If
the coolant temperature returns to normal, you must
select AC to return
to a normal A/C compressor
operation. If this message continues to appear, have
the system repaired as soon as possible to avoid
compressor damage.
ENGINE MISFIRE, EASE OFF GAS PEDAL - 114:
An engine misfire has occurred. You’ll need to ease off
the gas pedal.
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” in the Index.
A multiple chime will also sound when this message
is displayed.
ENGINE POWER REDUCED - 41: This message
informs the driver that their vehicle is reducing engine
power because the transaxle is being placed in gear
under conditions that may cause damage to the vehicle
powertrain or vehicle acceleration.
FUEL LEVEL LOW - 11: This message serves as a
warning that the fuel level in the tank
is critically low.
Stop for fuel soon.
HEADLAMPS SUGGESTED - 23: If it’s dark enough
outside and the twilight sentinel control is
off, a
HEADLAMPS SUGGESTED message will display on
the Driver Information Center (DIC). This message
informs the driver that turning on the exterior lamps is
recommended even though the Daytime Running
Lamps (Dm) are still illuminated. It’s become dark
enough outside to require the headlamps andQr
exterior lamps.
ICE POSSIBLE - 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.

Downloaded from www.Manualslib.com manuals search engine LOW-REFRIG A/C OFF - 12: This message means
that the air conditioning system detects a refrigerant
level that is low enough to cause damage to the air
conditioning compressor.
To avoid damage, the air
conditioning compressor automatically
turns off and the
electronic climate control system will automatically switch from AUTO to
ECON and remain there.
Have the air conditioning system serviced if this
message appears.
MONITORED SYSTEMS OK - 1: This message only
appears in the “recall” mode by pressing the RESET
(INFO RESET) button. It lets you know that no other
messages are stored or currently active.
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 also sound when this
message is displayed.
OPTIONS NOT SET - 99: This message will display if
a fault has occurred in your vehicle’s memory. See your
dealership for service.
PROGRAM PASS KEY - 31: This warning message
displays when the PASS-Key I1 pellet information has
not been programmed into your vehicle. See your dealership for service.
PHONE NOT PRESENT - 126: This message will
appear when the steering wheel controls for the optional
phone system are activated but the phone is not plugged
into the vehicle. Make sure your phone is plugged in.
If
your phone appears to be connected, see your dealership
for service.
REMOVE KEY - 70: This message will appear when
the Personalized Automotive Security System
(PASS-Key
11) is unable to read the pellet on the
ignition key or an improper key pellet has been inserted.
This message typically appears following the display of
STARTING DISABLED,
REMOVE KEY. The
instrument panel cluster will then run a timer and
change the messages to WAIT
3 MINUTES, WAIT
2 MINUTES, WAIT 1 MINUTE and then START CAR.
When the REMOVE KEY message is displayed, remove
the ignition key. Check the ignition key for damage. If it
is damaged, it may need to be replaced. If you see no
damage, clean the pellet contacts with a soft cloth or
napkin before inserting the key back into the ignition.
Have your vehicle serviced if the message still appears.
SERVICE A/C 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.

Downloaded from www.Manualslib.com manuals search engine Section 3 Comfort Controls and Audio Systems
In this section, you’ll find out how to operate the comfort control and audio systems offered with your vehicle. Be
sure to read about the particular systems supplied
with your vehicle.
3-2 Comfort Controls 3-22
AM-FM Stereo with Cassette Tape and
3-2 Digital
Cluster Climate Control.Pane1
Systems
(RDS) and Digital Signal Processing
(DeWlle and DeVille d’Elegance Only) Compact Disc Player with Radio Data
. .
3-6 Analog Cluster Climate Control Panel
(DSP) (If Equipped)
. (DeVille Concours Only) 3-3 1 Radio Data Systems (RDS) Program Type
3-
10 Air Conditioning. 3-32 Trunk Mounted CD Changer (If Equipped)
3-10
’ Heating
3- 11 Ventilation System
3-4
1 Power Antenna Mast Care 3- 18 AM-FM Stereo with Cassette Tape and 3-41 Care
of Your Compact Disc Player
3-14 AM-FM Stereo with Cassette Tape Player 3-40 Care
of Your
Compact Discs
3-14 Setting the Clock 3-39 Care
of Your
Cassette Tape Player
3-14 Audio Systems 3-38 Tips
About Your
Audio System
3-13 Climate Control Personalization If (Equipped) 3-38 Understanding Radio Reception
3-13 HVAC Steering Whed Controls 3-37 Audio Steering Wheel Controls
(If Equipped) 3-12 Rear Window Defogger 3-36 Theft-Deterrent Feature
3- 12 Defogging and Defrosting 3-36 Radio Personalization (If Equipped)
319
Electronic Solar Sensor
(PTY) Selections
.-- 3-35 CD Adapter Kits
Compact Disc Player
(If Equipped)
3-1

Downloaded from www.Manualslib.com manuals search engine Driver’s Side Temperature Button
The red and blue temperature buttons adjust the air
temperature coming through the system. Press the
blue button for a cooler setting or the red button for a
warmer setting.
Passenger’s Side Temperature Knob
With this feature, the right front passenger can control
the temperature of air for hisher own zone. The
passenger can select a four degree warmer or cooler
temperature from the driver’s setting.
To turn the system on, press the knob on the passenger’s
side armrest. Rotate the knob to the right to increase
the temperature and turn to the left to decrease the
temperature. Press the knob again to turn the system
off.
Outside Temperature Display
The outside temperature is always displayed when your
vehicle is running. You can change it from Fahrenheit to
Celsius by pressing the ENG/MET (EnglisWmetric)
button on the Driver Information Center (DIC).
The outside temperature sensor is located near the
front grille. The sensor can be affected by road or
engine heat during idling, slow driving or when the engine
is first started after a
short trip. In order to ensure
proper automatic climate control operation, the outside
air temperature display may not update as quickly as
expected. This is to allow the air surrounding the outside
temperature sensor to be as close to the actual outside
conditions as possible. This is determined by how much
time has elapsed since the vehicle has been turned
off
and by vehicle speed.
Mode Controls
The AUTOECON button automatically controls the
direction
of air delivery for air conditioning and non-air
conditioning modes.
Automatic Operation
When the system is set for automatic operation, sensors
will control the air delivery mode. Air will come from
the floor, middle or windshield outlets. The fan speed
will
vary as the system maintains the selected
temperature setting.
Be careful not to put anything over the solar sensor
located in the middle of the instrument panel near the
windshield. This sensor is used by the automatic system
to regulate temperature.

Downloaded from www.Manualslib.com manuals search engine To find your comfort zone, start with the 75 "F (24°C)
setting and allow about 30 minutes for the system to
regulate. Press the red or blue temperature buttons
to adjust the temperature if necessary. If you choose
60°F (16"C), the system will remain at that maximum
cooling setting and
will not regulate fan speed. If you
choose the temperature of
90°F (32" C), the system will
remain at that maximum heating setting and will not regulate fan speed. Choosing either maximum setting
will not cause the system to heat or cool any faster.
With the automatic setting, the air conditioning
compressor automatically cycles when needed to cool
the air. In cold weather, when the system senses the need for heat, the airflow will be directed out the floor
outlets.
As the interior temperature approaches a desired
setting, the blower speed will decrease.
To maintain
interior comfort, the airflow may move to the instrument
panel air outlets and floor outlets (bi-level mode). On
bright sunny days in cold weather, the airflow may come
out of the air conditioning outlets
(AC mode) to
maintain comfort and prevent stuffiness. If your vehicle is sitting
out on a hot day and you have
it set on
AUTO, the air will first flow out the floor air
outlets for a few seconds. That is normal.
This is to
expel hot air from the air outlets.
As the air is cooled,
the airflow will move through the air conditioning
outlets. If you start your vehicle with the
fan setting on
HI, it will
skip the air conditioning purge.
To avoid blowing cold
air in cold weather, the system will
delay turning on the fan until warm air is available. The
length of delay depends on the outside air temperature,
engine coolant temperature or the time since the engine
was last started.
As the coolant warrns up, the blower fan
speed
will gradually increase and air will flow from the
heater outlets, with some airflow to the windshield to
prevent fogging under most normal conditions.
If you leave your vehicle, the system will remember the
control setting the next time you start your engine,
except for recirculation and defrost. Each ignition cycle
cancels recirculation, whereas, DEFROST will change
to automatic operation when the ignition is shut off and
then turned back on.

Downloaded from www.Manualslib.com manuals search engine Mode Button
Press this button to deliver air through the floor, middle
or windshield outlets. The system will stay in the
selected mode until the
MODE button is pushed again.
Press the up or down arrow to cycle through the
available modes.
Automatic Operation
When the system is set for automatic operation, sensors
will control the air delivery mode. Air will come from
the floor, middle or windshield outlets. The fan speed
will vary as the system maintains the selected
temperature setting.
Be careful not to put anything over the solar sensor
located in the middle of the instrument panel near the
windshield. This sensor is used by the automatic system
to regulate temperature.
To find your comfort zone, start with the 75°F (24°C)
setting and allow about
30 minutes for the system to
regulate. Turn the TEMP/AUTO knob to adjust the
temperature
if necessary. If you choose 60 "F (1 6 " C),
the system will remain at that maximum cooling
setting and will not regulate fan speed. If you choose the
temperature
of 90°F (32"C), the system will remain at
that maximum heating setting and will not regulate fan speed. Choosing either maximum setting will not cause
the system to heat or cool any faster. With the automatic setting, the air conditioning
compressor automatically cycles when needed to cool
the air. In cold weather, when the system senses the
need for heat, the airflow will be directed out the floor
outlets.
As the interior temperature approaches a desired
setting, the blower speed will decrease.
To maintain
interior comfort, the airflow may move to the instrument
panel
air outlets and floor outlets (bi-level mode). On
bright sunny days in cold weather, the airflow may come
out of the air conditioning outlets (AC mode) to
maintain comfort and prevent stuffiness.
If your vehicle is sitting out on a hot day and you have
it set on AUTO,
the air will first flow out the floor air
outlets for a few seconds. That is normal. This is to
expel hot air from the air outlets.
As the air is cooled,
the airflow will move through the air conditioning
outlets.
If you start your vehicle with the fan setting
on HI, it will skip the air conditioning purge.
To avoid blowing cold air in cold weather, the
system will delay turning on the fan until warm air is
available. The length of delay depends on the outside
air temperature, engine coolant temperature or the time
since the engine was last started. As the coolant warms
up, the blower fan speed will gradually increase and air will flow from the heater outlets, with some
airflow to the windshield to prevent fogging under
most normal conditions.
3-7

Downloaded from www.Manualslib.com manuals search engine OFF: Press this button to turn the system off. Fresh
air will continue to flow through the vehicle, and the
system will try
to maintain the previously set
temperature. The outside temperature will show on
the display when the system is
OFF.
AC: Press this button to turn the air conditioning on and
off. The system will cool and dehumidify the air inside
the vehicle. In the
AUTO mode, the display will show
that
AC is active, but the air conditioning compressor
only operates when the system determines it is needed.
0 RECIRCULATION: Press this button to limit the
amount of fresh air entering your vehicle. This is helpful
when you are trying to cool the air quickly or limit odors
entering your vehicle. In the
AUTO mode, the system
will use recirculation as necessary to cool the air.
Pressing the recirculation button will change the
operation to a manual mode and the air will recirculate
non-stop. Press this button again to turn off the
recirculation feature.
If you notice the windows fogging, press the recirculation button to exit the recirculation mode.
Electronic Solar Sensor
The sensor monitors the sun's solar radiation and is
located on top of the instrument panel near the
windshield. The
ECC panel uses this information to
automatically make the necessary temperature and
airflow adjustments to maintain your comfort.
3-9

Downloaded from www.Manualslib.com manuals search engine . 3.
Air Conditioning
.On hot days, open the windows long enough to let hot
inside
air escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the
air conditioner to work its best. I ,
With the digital cluster climate control panel, press the
AUTOLECON button to assist 'in cooling air and in
maintaining proper airflow. Adjust the temperature to a
comfortable setting by pressing the blue,button to cool
your vehicle and pressing the red button to warm your
vehicle. Press the fan button
arrows up or down to
,adjust the fan speed.
If your vehicle has a climate control panel (which is
standard with the analog cluster), press the AC button
or
the TEMPLAUTO knob to turn the system on. The
system'will cool and dehumidify the
air inside the
vehicle. Also while in the AUTO mode, the system will
use recirculation as necessary
to cool the air. You may
also need to adjust- the interior temperature and the fan
speed as needed.
When'the
air conditioner is on, you may sometimes
notice slight changes
in your vehicle's engine speed
and power. This is normal because the system is
designed to cycle the compressor
on and off to keep
the desiied temperature.
Heating
With the digital cluster climate control panel, press the
AUTOECON button to direct airflow and to help save
fuel. Adjust the temperature, if necessary, by pressing
the blue button to decrease temperature and pressing the
red button to increase temperature.
Also remember to
adjust the fan speed by pressing the up or downarrow.
If your vehicle has a climate control panel (which is
standard with the analog cluster), press the
MODE
button to select heater. Adjust the interior temperature to a comfortable level and if the fan speed needs adjusting,
press the up
or down arrow.
With each system, outside
air will be brought in and sent
through the floor, air conditioning or bi-level outlets
(depending on the condition). The heater works best
if
you keep your windows closed whiIe using it.
3-10 1 _--- -

Downloaded from www.Manualslib.com manuals search engine Ventilation System
Your vehicle's flow-through ventilation system supplies
outside air into the vehicle when it is moving. Outside
air will also enter the vehicle when the heater or the air
conditioning fan is running.
The direction
of airflow to the rear seats can be adjusted
if you have the optional full console (DeVille Concours
Only). Move the fan lever to adjust the blower speed
from LO to
HI. Motre the vent lever to direct the airflow.
The front outlets are located in the center and at each
side
of the instrument panel. You can adjust the
direction of airflow by moving the center control levers
or you can stop the aifflow by moving the lever located
on each side
of the outlets downward.
3-11

Downloaded from www.Manualslib.com manuals search engine &&* -%%-,
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel informa\
tion,
and then it shows how to check important fluid and lubricant levels. There is also techn\
ical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3
6-5 6-5
6-8
6-8
6-11
6-15
6-18
6-22
6-26
6-28
6-3 1
6-32
6-3
8
6-3 8
Service
Fuel
Fuels in Foreign Countries Filling Your Tank
Filling a Portable Fuel Container
Checking Things Under the Hood
Engine Oil
Air Cleaner
Automatic Transaxle Fluid
Engine Coolant
Windshield Washer Fluid
Brakes
Battery
Bulb Replacement
Windshield Wiper Blade Replacement Headlamp Aiming 6-4
1
6-49
6-49
6-52
6-54
6-55
6-55
6-56
6-57 6-57
6-66
6-66
6-67
6-67 Tires
Appearance Care
Cleaning the Inside of Your Vehicle
Cleaning the Outside
of Your Vehicle
Cleaning Aluminum or Chrome Wheels
(If Equipped)
Underbody Maintenance
Chemical Paint Spotting
Appearance Care Materials Chart
Vehicle Identification Number (VIN)
Electrical System Replacement Bulbs
Capacities and Specifications
Air Conditioning Refrigerants
Normal Maintenance Replacement
Parts