2001 CADILLAC SEVILLE heating

2-96
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 ªEngine Overheatingº in the Index.
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 also sound when
this message is displayed.HEADLAMPS SUGGESTED
- 23: If it's dark enough
outside and the headlamps and the Twilight Sentinel

controls are off, a HEADLAMPS SUGGESTED
message will display on the DIC. This message
informs the driver that turning on the exterior lamps is
recommended even though the Daytime Running Lamps
(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
Rainsense wiping feature is on and the Twilight
Sentinel

is 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 also sound when
the vehicle's speed is greater than 3 mph (4.8 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 also sound when this
message is displayed.

2-97
PASSENGER DOOR AJAR - 141: The 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
also sound when the vehicle's speed is greater
than 3 mph (4.8 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
also sound when the vehicle's speed is greater
than 3 mph (4.8 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
supplemental inflatable restraint (air bag) system when
this message appears. Let only a qualified technician
work on your vehicle. See your dealership for service
at once.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. See your
dealership for service.
SERVICE IDLE CONTROL
- 107: A problem with
the idle control has occurred when this message displays.
Take your vehicle to your dealership for service.
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.

3-
3-1
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 (If Equipped)
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
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 Navigation/Radio System (Option)
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
-32 Audio Steering Wheel Controls
3
-32 Understanding Radio Reception
3
-33 Tips About Your Audio System
3
-33 Care of Your Cassette Tape Player
3
-35 Care of Your Compact Discs
3
-35 Care of Your Compact Disc Player
3
-35 Diversity Antenna System

3-3
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.
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.

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.

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 up or down arrow on the fan button 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.
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.

3-10 HVAC Steering Wheel Controls
(If Equipped)
Some heating and cooling
controls can be adjusted at
the steering wheel. Other
touch controls operate some
audio controls. See ªAudio
Steering Wheel Controlsº in
the Index.
FAN: Press the up arrow on the control to increase
the fan speed and the down arrow to decrease fan speed.
TEMP: Press the up arrow on the control to increase the
temperature and the down arrow to decrease temperature.
Climate Control Personalization
(If Equipped)
With this feature, your vehicle will recall the latest
climate control settings as adjusted the last time your
vehicle was operated. These settings include the set
temperatures for driver and passenger, air conditioning,
mode and fan speed. (This feature does not recall
recirculation or defrost modes.) This feature allows two
different drivers to store and recall their own climate
control settings. The settings recalled by the climate
control system are determined by which Remote
Keyless Entry (RKE) transmitter (ª1º or ª2º) was used
to enter the vehicle. The number on the back of the RKE
transmitter corresponds to driver 1 or to driver 2. After
any button is pressed on the RKE transmitter or the key
is placed in the ignition, the climate control settings will
automatically adjust to where they were last set. The
settings can also be changed by briefly pressing buttons
1 or 2 located on the driver's door.

4-38 Driving On Grades
Reduce speed and shift to a lower gear before you
start down a long or steep downgrade. If you don't
shift down, you might have to use your brakes so
much that they would get hot and no longer work well.
On long uphill grades, reduce speed to 45 to 50 mph
(70 to 90 km/h) and avoid prolonged use of SECOND (2)
gear and engine speeds above 3800 rpm.
Climbing grades steeper than four percent at
temperatures above 90
F (32
C) with a loaded
vehicle and trailer is not recommended. The cooling
system may temporarily overheat. See ªEngine
Overheatingº in the Index.
Parking on Hills
CAUTION:
You really should not park your vehicle, with
a trailer attached, on a hill. If something goes
wrong, your rig could start to move. People can
be injured, and both your vehicle and the trailer
can be damaged.
But if you ever have to park your rig on a hill, here's
how to do it:
1. Apply your regular brakes, but do not shift
into PARK (P).
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then shift into
PARK (P) firmly and apply your parking brake.
5. Release the regular brakes.