1999 CADILLAC SEVILLE Owners Manual

3-
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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
-2 Climate Control Panel
3
-6 Air Conditioning
3
-6 Heating
3
-7 Defrosting and Defogging
3
-7 Rear Window Defogger
3
-8 Ventilation System
3
-10 HVAC Steering Wheel Controls
3
-10 Climate Control Personalization (If Equipped)
3
-11 Audio Systems
3
-11 Setting the Clock
3
-11 AM-FM Stereo with Cassette Tape and
Compact Disc Player (If Equipped)
3
-16 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data
Systems (RDS) and Digital Signal Processing
(DSP) (If Equipped)3
-26 Radio Data Systems (RDS) Program Type
(PTY) Selections
3
-27 CD Adapter Kits
3
-28 Console-Mounted CD Changer (Option)
3
-30 Radio Personalization with Home and Away
Feature (If Equipped)
3
-31 Theft-Deterrent Feature
3
-31 Audio Steering Wheel Controls
3
-32 Understanding Radio Reception
3
-32 Tips About Your Audio System
3
-33 Care of Your Cassette Tape Player
3
-34 Care of Your Compact Discs
3
-35 Care of Your Compact Disc Player
3
-35 Diversity Antenna System

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Comfort Controls
This section tells you how to make your air system work
for you. Your climate control system uses
ozone
-friendly R-134a refrigerant.
Climate Control Panel
Your vehicle is equipped with a dual-zone electronic
climate control system. This system can automatically
adjust and control temperature, fan speed, air delivery
mode, air conditioning operation and air intake. You can
use the AUTO (automatic) setting or override the
automatic operation by manually altering the controls.
If your vehicle is equipped with the Climate Control
Personalization feature, you will be able to programyour preferred climate control settings by using your
remote keyless entry transmitter. See ªClimate Control
Personalizationº in the Index.
AUTO: The AUTO button will turn on the system
and automatically adjust the fan blower speed, air
delivery mode and temperature to your previously
programmed settings.
TEMP: This knob adjusts the air temperature coming
through the system. Turn the TEMP knob clockwise
to increase the temperature and counterclockwise to
decrease the temperature. You may also press the TEMP
knob to turn the system on and off. (You can turn the
comfort control system on by pressing any button on the
panel. The passenger's TEMP knob only turns off the
system of the passenger's side.) Once the system is
turned off, fresh air will continue to flow through the
vehicle, and the system will try to maintain the
previously set temperature.
Driver's Side Temperature Knob
You can control the temperature of the driver's side
independently from the passenger's side. Turn the
driver's side TEMP knob clockwise to increase the
temperature and counterclockwise to decrease
the temperature.

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Passenger's Side Temperature Knob
The right front passenger can control the temperature
of air for both the front passenger and rear seat area.
(The passenger's and driver's knob adjust from 60
F
(16
C) to 90
F (32
C) independent of each other. It is
suggested, however, that the passenger's setting stay no
more than four degrees warmer or cooler in temperature
from the driver's setting.) To turn the system on, press
the passenger's side TEMP knob. Turn the passenger's
side TEMP knob clockwise to increase the temperature
and counterclockwise to decrease the temperature. Press
the passenger's side TEMP knob again to turn off the
passenger's side system. If the passenger's side is turned
off, the driver's side will control the temperature of the
entire vehicle.
Automatic Operation
When the system is set for automatic operation, sensors
will control the air delivery mode. Air will come from
the floor, the instrument panel or windshield outlets.
The fan speed will vary as the system maintains the
selected temperature setting.
Be careful not to put anything over the electronic solar
sensors located near the ends of the instrument panel
near the windshield. These sensors are 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 knob 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 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 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 (A/C mode) to maintain
comfort and prevent stuffiness.

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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 outlets
for a few seconds. This is normal. This is to remove hot
air from the air outlets. As the air is cooled, the airflow
will move through the air conditioning outlets.
To avoid blowing cold air in cold weather, the system
will start at reduced fan speeds until warm air is
available. The length of reduction 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. If you select defrost mode or a
manual fan speed, this function will be skipped.
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. Defrost will change to automatic
operation when the ignition is shut off and then turned
back on.Manual Operation
You may manually adjust the air delivery mode, fan
speed, air input and compressor operation using the
following controls.
DEFROST (FRONT): Press this button to quickly
remove fog or frost from the windshield. This setting
sends most of the airflow to the windshield with only a
small amount to the floor outlets.
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. Recirculation is not available in the defrost mode.

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A/C: Press this button to turn the air conditioning
compressor on and off. When you press the button, an
A/C OFF message appears on the climate control panel's
display. Press the button again and the air conditioner
will return to automatic control. The system will cool
and dehumidify the air inside the vehicle. In the
automatic mode, the air conditioning compressor only
operates when the system determines it is needed. The
A/C OFF function is not available in the defrost mode.
MODE: Press this button (the right or left arrow) to
deliver air through the floor, instrument panel or
windshield outlets. The climate control system will stay
in the selected mode until the MODE button, the
DEFROST button or the AUTO button is pressed again.
Press the left or right arrow to cycle through the
following available modes.

UPPER: This setting directs airflow through the
middle instrument panel outlets. Your vehicle is
equipped with a driver's side lap cooler which will also
come on when the upper vents are being used.
BI-LEVEL: This setting directs air into your
vehicle in two ways. Cool air is directed to the upper
portion of your body through the four instrument panel
outlets while warmed air is directed to the floor.
DEFOG: This setting directs air to the floor
outlets and toward the windshield.

HEATER: This setting directs warmed air
through the floor outlets. Some warm air is diverted to
the windshield to minimize fogging.
FAN: The button with the fan symbol adjusts the
fan speed. Press the up arrow to increase fan speed and
the down arrow to decrease fan speed. Press the AUTO
button to set the fan speed for automatic operation.
If it is cold outside, the blower may not run in the
maximum high fan speed right away. The system checks
the temperature of the engine coolant to assure it is
warm enough to provide heat. When the engine coolant
is warm, the controller allows the fan to gradually
increase to a higher speed. This prevents cold air from
blowing into the passenger's compartment. Selecting a
manual fan speed will override this feature.

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3-6 Electronic Solar Sensor
The sensor monitors the sun's solar radiation and is
located near the end of the instrument panel near
the windshield.
The climate control panel uses this information to
automatically make the necessary temperature and
airflow adjustments to maintain your comfort. The
climate control system may supply cooler air to one side
of your vehicle, if that side is facing the sun. Be careful
not to put anything over the sensor on top of the
instrument panel.
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. Your A/C setting
may be adjusted automatically or manually. It may also
be set separately on the passenger's side from the
driver's side. See ªClimate Control Panelº earlier in
this section.
Heating
Adjust the interior temperature to a comfortable level
and if the fan speed needs adjusting, press the up or
down arrow. Adjusting the fan speed will cancel the cold
air delay.
Outside air will be brought in and sent through the floor,
air conditioning or bi
-level outlets. The heater works
best if you keep your windows closed while using it.
In automatic operation, your fan will not run at high
speed to minimize warm
-up time.

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3-7 Defrosting and Defogging
Use defrost (front) on cool and humid days to keep the
windshield and side windows clear. This setting will
remove fog or ice from the windshield quickly in
extremely humid or cold conditions. If you desire to
have more air on your feet, turn the control to the defog
mode. You may do this by pressing the right or left
arrow on the MODE button.
Press the fan button's up or down arrow to control the
blower speed. You may also adjust the temperature by
turning the TEMP knob.
The recirculation mode and the A/C OFF message are
not available in the defrost mode.
Rear Window Defogger
The grid lines you see on
the rear window warm the
glass. Press this button to
turn on the rear defogger.
With it, the rear window
and both outside rearview
mirrors are heated. The
light on the button will
come on while the system
is activated.The system will automatically shut off after 10 minutes.
If further defogging is desired, press the button again.
The system will automatically shut off after five minutes
for any cycles after the initial activation.
Note: The lines along the top of the window are for
the diversity antenna and are not intended to defog the
rear window.
Do not attach a temporary vehicle license, tape or decals
across the defogger grid on the rear window.
NOTICE:
Scraping the inside of your rear window could
cut and damage the heating grids. Your warranty
would not cover this damage. Don't put decals
there because you might have to scrape them off.

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3-8 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 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 airflow by moving the control dial
located on each outlet downward.Rear Ventilation
The direction and quantity of airflow for the rear seats
can also be adjusted at the back of the console. Heater
outlets are located under the front seat to warm the feet
of rear passengers.
Move the fan lever to adjust the blower speed from LO
to HI. Adjust the knob to direct the air flow. To reduce
airflow to the rear outlets, slide the fan lever all the way
to the left. Turning the knob to OFF will completely
stop airflow, no matter where the fan blower control
is set.