2002 CADILLAC SEVILLE air condition

2-84
Are you low on fuel?
As your engine starts to run out of fuel, your engine
may not run as efficiently as designed since small
amounts of air are sucked into the fuel line causing a
misfire. The system can detect this. Adding fuel should
correct this condition. Make sure to install the fuel cap
properly. See ªFilling Your Tankº in the Index. It will
take a few driving trips to turn the light off.
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.

2-93
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 inflation 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.
The correct tire inflation pressure should be set
to those shown on the Tire Loading
-Information
Label, located on the rear edge of the driver's door.
For more information regarding proper tire inflation,
see ªInflation
-- Tire Pressureº in the Index. If a tire
is low, you should stop as soon as possible and inspect
your tire(s) for damage. If a tire is flat, see ªIf a Tire
Goes Flatº in the Index.Once the TPM system detects the low or high tire
pressure condition, the message ªCHECK TIRE
PRESSUREº will be displayed whenever you start
the engine. To remove or clear the CHECK TIRE
PRESSURE message, you will need to set the tire(s) to
the proper tire pressure. See ªInflation
-- Tire Pressureº
in the Index.
CAUTION:
When the CHECK TIRE PRESSURE message is
displayed on the Driver Information Center and
the tire pressure is low, your vehicle handling
capabilities will be reduced during severe
maneuvers. If you drive too fast, you could lose
control of your vehicle. You or others could be
injured. Don't drive over 55 mph (90 km/h) when
the tire pressure is low. Drive cautiously and
correct the tire pressure as soon as you can.

2-94
CHECK WASHER FLUID - 25: This message means
that your vehicle is low on windshield washer fluid.
DRIVER DOOR AJAR
- 140: This message will
display anytime the key is in ON, the transaxle is not
in PARK (P) and the driver's door is open or ajar.
A chime will sound when the vehicle's speed is greater
than 3 mph (4.8 km/h).
DRIVER NO. X (1 OR 2): This message will be
displayed with the key in ON and while entering
FEATURE PROGRAMMING, but only if the vehicle
is equipped with memory seats. The message will show
which driver is activating the personalization feature.
It will only stay on for five seconds. This message can
be customized for you by your dealer.
ENGINE COOLANT HOT, IDLE ENGINE
- 44:
This message will appear when the engine coolant
temperature is over 262
F (128
C). 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 ªEngine Overheatingº in the Index.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 sound when this
message is displayed.

2-95
HEADLAMPS SUGGESTED - 23: If it's dark enough
outside and the headlamps and Twilight Sentinel

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
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 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.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 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 supplemental inflatable restraint (air bag) system
when this message appears. Let only a qualified
technician work on your vehicle. Have your vehicle
serviced by your dealership immediately.

2-111 Comfort Controls and Radio
System Personalization
These features allow both drivers to personalize their
own climate control settings as well as their radio
settings. For more information, see ªClimate Control
Personalizationº and ªRadio Personalizationº in
the Index.
The outside temperature is always available for display
if it has been selected for a DIC display when your
vehicle is running unless an overriding DIC message
appears. You can change the temperature from
Fahrenheit to Celsius by pressing the ENG/MET
(English/metric) button on the instrument panel.
For more information on the DIC, see ªDIC Messagesº
in the Index.
The electronic sensor can be affected by road or engine
heat during idling, slow driving or when the engine is
first started after a short trip. 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.
Continuous Variable Road Sensing
Suspension (CVRSS) -- STS Only
The CVRSS automatically adjusts the ride of your
vehicle. Automatic ride control is achieved through a
computer used to control and monitor the suspension
system. The controller receives input from various
sensors to determine the proper system response.
If the controller detects a problem within the system,
the DIC will display a SERVICE SUSPENSION SYS
message. If this message appears, have your vehicle
serviced at your dealership.

2-115
If the URPA system is not functioning properly, the
display will flash red, indicating that there is a problem.
The light will also flash red while driving if a trailer is
attached to your vehicle, or a bicycle or object is on
the back of, or hanging out of your trunk. The light
will continue to flash until the trailer or the object is
removed and your vehicle is driven forward at least
15 mph (25 km/h).
It may also flash red if the ultrasonic sensors are not
kept clean. So be sure to keep your rear bumper free
of mud, dirt, snow, ice and slush or materials such as
paint or the system may not work properly. If after
cleaning the rear bumper and driving forward at least
15 mph (25 km/h), the display continues to flash red,
see your dealer. For cleaning instructions, see ªCleaning,
Outside of Your Vehicleº in the Index.It may also flash red if your vehicle is moving in
REVERSE (R) at a speed greater than 3 mph (5 km/h).
Other conditions that may affect system performance
include things like the vibrations from a jackhammer or
the compression of air brakes on a very large truck.
As always, drivers should use care when backing up a
vehicle. Always look behind you, being sure to check
for other vehicles, obstructions and blind spots.

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
-6 Defogging and Defrosting
3
-7 Rear Window Defogger
3
-8 Ventilation System
3
-10 HVAC Steering Wheel Controls
3
-10 Climate Control Personalization (If Equipped)
3
-12 Audio Systems
3
-12 Setting the Clock
3
-12 AM-FM Stereo with Cassette Tape and
Compact Disc Player
3
-17 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data
Systems (RDS), Digital Signal
Processing (DSP) and XM
Satellite
Radio Service (If Equipped)3
-27 Navigation/Radio System (Option)
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
-33 Tips About Your Audio System
3
-34 Care of Your Cassette Tape Player
3
-35 Care of Your Compact Discs
3
-35 Care of Your Compact Disc Player
3
-36 Diversity Antenna System
3
-36 XM Satellite Radio Antenna (If Equipped)

3-2
Comfort Controls
This section tells you how to make your air system work
for you.
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 settings.If your vehicle is equipped with the climate control
personalization feature, you will be able to program
your preferred climate control settings and recall them
using your remote keyless entry transmitter. See
ªClimate Control Personalizationº in the Index.
TEMP (Temperature): These knobs adjust the air
temperature coming through the system. Turn a TEMP
knob clockwise to increase the temperature and
counterclockwise to decrease the temperature.
Both TEMP knobs adjust from 60
F (16
C) to
90
F (32
C) independent of each other. It is
recommended that the passenger's setting stay no more
than four degrees warmer or cooler in temperature from
the driver's setting.