2004 CADILLAC XLR air conditioning

Automatic Operation
AUTO (Automatic):When this button is pressed and
the temperature is set, the system will automatically
control the inside temperature, the air delivery mode, the
air-conditioning compressor and the fan speed. AUTO
will appear on the display.
1. Press the AUTO button.
2. Adjust the temperature to a comfortable setting
between 70ÉF (21ÉC) and 80ÉF (27ÉC).
Choosing the warmest or coldest temperature
setting will not cause the system to heat or cool any
faster. If you set the system at the warmest or
coldest temperature setting, the system will remain
in manual mode at that temperature and it will
not go into automatic mode.
In cold weather, the system will start at reduced fan
speeds to avoid blowing cold air into your vehicle
until warmer air is available. The system will
start out blowing air at the ¯oor but may change
modes automatically as the vehicle warms up
to maintain the chosen temperature setting. The
length of time needed for warm up will depend on
the outside temperature and the length of time
that has elapsed since your vehicle was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature, if
necessary.You can switch from English to metric units through the
Driver Information Center (DIC). SeeDIC Controls
and Displays on page 3-55for more information.
The air-conditioning system removes moisture from the
air, so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling
or after turning off the engine. This is normal.
Do not cover the solar sensor located in the center of
the instrument panel, near the windshield. For more
information on the solar sensor, see ªSensorsº later in
this section.
Manual Operation
wPWRx(Power/Temperature):Press the PWR
button on the left side of the climate control panel to turn
the entire climate control system on or off. Press the
up or down arrow on the switch to manually increase or
decrease the temperature inside the vehicle.
Press the PWR button on the right side of the climate
control panel to turn the passenger's climate control
system on or off. Press the up or down arrow on
the switch to manually increase or decrease the
temperature for the passenger.
If the passenger's PWR button is off, the driver's
temperature switch controls the temperature for the
entire vehicle.
3-34

«9ª(Fan):Press this switch to increase or
decrease the fan speed. Pressing this switch cancels
automatic operation and places the system in manual
mode. Press AUTO to return to automatic operation.
If the air¯ow seems low when the fan speed is at
the highest setting, the passenger compartment air ®lter
may need to be replaced. For more information, see
Passenger Compartment Air Filter on page 3-38andScheduled Maintenance on page 6-4.
ªN«(Mode):Pressing the switch and changing the
mode cancels automatic operation and places the
system in manual mode. Press the AUTO button to
return to automatic operation.
To change the current mode, select one of the following:
H(Vent):This mode directs air to the instrument
panel outlets.
%(Bi-Level):This mode directs approximately half of
the air to the instrument panel outlets, and then
directs most of the remaining air to the ¯oor outlets. In
automatic operation, cooler air is directed to the
upper outlets and warmer air to the ¯oor outlets.
6(Floor):This mode directs most of the air to the
¯oor outlets with some air directed to the side window
outlets, and a little air directed to the windshield.
The mode switch can also be used to select the defog
mode. Information on defogging and defrosting can
be found later in this section.
A/C OFF (Air Conditioning):Press this button to turn
off the air conditioning compressor. Press AUTO to
return to automatic operation. The compressor cannot
be turned off in either the defrost or ¯oor/defog mode.
((Heated/Cooled Seat):Press this button to turn the
feature on. The button on the left controls the driver's
seat and the button on the right controls the passenger's
seat. Each press of the button will take you to a
different setting. The settings available in order are HI
HEAT, LO HEAT, OFF, HI COOL, LO COOL and
OFF. You will be able to feel the temperature change in
a few minutes.
The feature will automatically shut off when the vehicle
is turned off.
3-35

?(Recirculation):Press this button to turn the
recirculation mode on or off. The air-conditioning
compressor also comes on. This mode keeps outside
air from coming in the vehicle. It can be used to prevent
outside air and odors from entering your vehicle or to
help cool the air inside your vehicle more quickly.
Recirculation is not available in defrost or
¯oor/defog mode.
Using recirculation for long periods of time may cause
the air inside your vehicle to become too dry. To prevent
this from happening, after the air in your vehicle has
cooled, turn the recirculation mode off.
Sensors
There are sensors to measure the temperature and
sun's effect on passenger comfort.
The solar sensor on your vehicle monitors the solar
radiation then uses the information to maintain the
selected temperature when operating in AUTO mode by
initiating needed adjustments to the temperature, the
fan speed and the air delivery system. The system may
also supply cooler air to the side of the vehicle facing
the sun. The recirculation mode will also be activated, as
necessary. Do not cover the solar sensor located on
the top right side of the instrument panel near the
windshield or system will not work properly.There is also a sensor located behind the front bumper.
This sensor reads the outside air temperature and
helps maintain the temperature inside the vehicle. The
outside temperature will be displayed in the navigation
system only when the engine is running. Any cover
on the front of the vehicle could give a false reading of
the temperature.
If the outside temperature goes up, the display
temperature will not change until:
·The vehicle's speed is above 10 mph (16 km/h) for
®ve minutes.
·The vehicle's speed is above 32 mph (51 km/h) for
two and one-half minutes.
These delays prevent false readings. If the temperature
goes down, the outside temperature will be shown
when you start the vehicle. If it has been turned off for
less than three hours, the temperature will be recalled
from the previous vehicle operation.
There is also an inside temperature sensor located to
the left of the ignition button. The automatic climate
control system uses this sensor to receive information,
so if you block or cover it, the system will not function
properly.
3-36

Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(moisture) condensing on the cool window glass. This
can be minimized if the climate control system is
used properly. There are two modes to clear fog or frost
from your windshield. Use the ¯oor/defog mode to
clear the windows of fog or moisture and warm
the passengers. Use defrost to remove fog or frost from
the windshield more quickly.
-(Floor/Defog):Press the mode button until the
defog mode appears on the display. This mode directs
the air between the windshield, ¯oor outlets and
side windows. When you select this mode, the system
turns off recirculation and runs the air-conditioning
compressor unless the outside temperature is near or
below freezing. The recirculation mode cannot be
selected while in the ¯oor/defog mode.
1(Defrost):Press this button to direct most of the
air to the windshield, with some air directed to the
side windows. In this mode, the system will automatically
turn off the recirculation and run the air-conditioning
compressor, unless the outside temperature is near or
below freezing. Recirculation cannot be selected while in
the defrost mode. Do not drive the vehicle until all the
windows are clear.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
The rear window defogger will only work when the
engine is running.
=(Rear Window Defogger):Press this button to
turn the rear window defogger on or off. Be sure to clear
as much snow from the rear window as possible.
The rear window defogger will turn off approximately
10 minutes after the button is pressed when traveling
less than 30 mph (48 km/h). If turned on again, the
defogger will only run for approximately ®ve minutes
before turning off. The defogger can also be turned off
by pressing the button again or by turning off the
engine.
The heated outside rearview mirrors will heat to help
clear fog or frost from the surface of the mirrors
when the rear window defogger is on.
The rear window defogger and heated mirrors are
automatically disabled when the retractable hardtop is
moving or down.
Notice:Don't use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs wouldn't be
covered by your warranty. Do not attach a temporary
vehicle license, tape, a decal or anything similar
to the defogger grid.
3-37

ENGINE PROTECTION REDUCE ENGINE RPM:If this
message appears, the control system has determined
that continued operation at the existing engine
speed may lead to engine overheating. Therefore, you
should lower the engine speed by upshifting the
transmission or drive at a lower speed.
HEADLAMPS SUGGESTED:If it is dark enough
outside and the headlamps and Twilight Sentinel
ž
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
RainsenseŸ wiping feature is on and the Twilight
Sentinel
žis off.
HIGH TRANS TEMP:This message indicates that the
transaxle ¯uid in your vehicle is too hot. Stop and
allow your vehicle to idle until it cools down or until this
message is removed.
HIGH VOLTAGE:This message shows that the
electrical charging system is overcharging. 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.
HOT ENGINE±A/C OFF: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.
ICE POSSIBLE:This message appears when the
outside air temperature is cold enough to create icy road
conditions.
LEFT DOOR AJAR:This message will display anytime
the vehicle engine is running, the transmission 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).
LOW BRAKE FLUID:This message will display if the
vehicle is running to inform the driver that the brake
¯uid level is low. Have the brake system serviced by a
technician as soon as possible. See ªBrake Fluidº
under
Brakes on page 5-35.
3-59

SERVICE A/C: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 ABS:If the SERVICE ABS message is
displayed when you are driving, stop as soon as
possible and turn the ignition off. Then start the engine
again to reset the system. If the message stays on,
or comes back on again while you are driving,
your vehicle is in need of service.
If the SERVICE ABS message is being displayed, your
Traction Control System and Stabilitrak
žSystem will
also be disabled. The Driver Information Center
will scroll three messages: SERVICE ABS, SERVICE
TRACTION SYS and SERVICE STABILITRAK, and the
traction control warning light on the instrument panel
cluster will be illuminated. The driver can acknowledge
these messages by pressing the RESET button
three times. When the service message is displayed the
computer controlled systems will not assist the driver
and you should have the system repaired as soon
as possible. Adjust your driving accordingly.
SERVICE ELECT SYSTEM: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:The Powertrain Control
Module (PCM) has detected a problem within the fuel
system when this message appears. Have your
vehicle serviced by your dealership. This message will
also be displayed when the cluster is not getting
fuel information from the PCM.
SERVICE RADAR CRUISE:This message indicates
that the Adaptive Cruise Control (ACC) system is
disabled and needs service.
SERVICE RIDE CONTROL:This message indicates
there is a problem with the Magnetic Ride Control
System. Have your vehicle serviced by your dealership.
SERVICE TRACTION SYS:This message indicates
there is a problem with the Traction Control System
(TCS). Have your vehicle serviced by your dealership.
SERVICE STABILITRAK:If this message appears
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 STABILITRAK 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.
3-62

(A) P-Metric Tire:The United States version of a
metric tire sizing system. The letter ªPº as the
®rst character in the tire size means a passenger
vehicle tire engineered to standards set by the U. S.
Tire and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio:A two-digit number that indicates
the tire height-to-width measurements. For example, if
the tire size aspect ratio is ª70,º as shown in item ªCº of
the illustration, it would mean that the tire's sidewall is
70% as high as it is wide.
(D) Construction Code:A letter code is used to
indicate the type of ply construction in the tire. The letter
ªRº means radial ply construction; the letter ªDº means
diagonal or bias ply construction; and the letter ªBº
means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:These characters represent
the load range and the speed rating of a tire. The
load range represents the load carrying capacity a tire is
certi®ed to carry. The load index can range from 1 to
279. The speed rating is the maximum speed a tire
is certi®ed to carry a load. Speed ratings range
from ªAº to ªZº.Tire Terminology and De®nitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire's height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold In¯ation Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi)
before a tire has built up heat from driving. See
In¯ation - Tire Pressure on page 5-57.
5-53

Fuses Usage
5 Stop/Back-Up Lamps
6 Oxygen Sensor
7 Battery 5
8 Parking Lamps
9 Electronic Throttle Control
10 Fuel Pump
11Engine Control Module,
Transmission Control Module
12 Odd Injectors
13 Magnetic Ride Control
14 Emission Controls
15 Air Conditioning Compressor
16 Even Injectors
17 Windshield Washer
18 Headlamp Washer
19 Right Low Beam Headlamp
20 Not Used
21 Left Low Beam Headlamp
22 Fog LampFuses Usage
23 Right High Beam Headlamp
24 Left High Beam Headlamp
25 Not Used
26 Battery 3
27 Anti-Lock Brakes
28 Climate Controls
29 Battery 2
30 Starter
31 Audio Ampli®er
32 Cooling Fan
33 Battery 1
48 Spare
49 Spare
50 Spare
51 Spare
52 Spare
53 Not Used
54 Fuse Puller
5-89