air conditioning BUICK LUCERNE 2007 Owner's Manual

3. Slide the new battery into the transmitter with
the positive side of the battery facing down.
Use a type CR2032 battery, or equivalent
type. Make sure the cover is on tightly,
so water will not get in.
4. Snap the front and the back of the transmitter
together.
5. Test the operation of the transmitter with the
vehicle.
Remote Vehicle Start
Your vehicle may have a remote starting feature.
This feature allows you to start the engine from
outside the vehicle. It may also start the vehicle’s
heating or air conditioning systems, rear window
defogger, and heated seats. SeeHeated Seats on
page 11andHeated and Cooled Seats on page 12
for additional information. When the remote start
system is active, the climate control system will
heat or cool the inside of the vehicle at the setting
the vehicle was set to when the vehicle was last
turned off. The rear window defogger will be turned
on by the climate control system when it is cold
outside. If the vehicle has heated seats, they may
also turn on. Cooled seats are not activated during
a remote start. Normal operation of the system will
return after the key is turned to the RUN position.Laws in some communities may restrict the use of
remote starters. For example, some laws may
require a person using the remote start to have
the vehicle in view when doing so. Check local
regulations for any requirements on remote starting
of vehicles.
Do not use the remote start feature if your vehicle
is low on fuel. Your vehicle may run out of fuel.
If your vehicle has remote start, the RKE transmitter
provides, an increased range of operation.
However, the range may be less while the vehicle is
running. As a result, you may need to be closer to
your vehicle to turn it off, than you were to turn it on.
There are other conditions which can affect the
performance of the transmitter, seeRemote
Keyless Entry (RKE) System on page 94for
additional information.
/(Remote Start):If your vehicle has the remote
start feature, the RKE transmitter will have a
button with this symbol on it.
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#(Air Conditioning):Press this button to turn
the air conditioning system on or off. When this
button is pressed, an indicator light below the
button will come on to let you know the air
conditioning is activated. Air conditioning can
be selected in any mode as long as the fan knob
is not in the off position.
On hot days during the vehicle’s initial start-up,
open the windows to let hot inside air escape; then
close them. This helps to reduce the time it takes
for the vehicle to cool down. It also helps the
system to operate more efficiently.
For quicker cool down on hot days, do the
following:
1. Select the vent air mode.
2. Select the recirculation mode.
3. Select the air conditioner.
4. Select the coolest temperature.
5. Select the highest fan speed.
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.Defogging and Defrosting
Fog on the inside of the vehicle is a result of high
humidity causing moisture to condense on the cool
window glass. This can be minimized if the climate
control system is used properly. There are two
modes to clear frost or fog from the windshield.
Use the oor/defog mode to clear the windows of
condensation and to warm the vehicle’s occupants.
Use the defrost mode to remove frost or
condensation from the windshield quickly.
See “Rear Window Defogger” later in this section
for information on clearing the rear window of
fog or ice.
Turn the right knob to select the defog or defrost
mode. The recirculation mode cannot be selected
while in these modes.
-(Floor/Defog):This mode directs half of the air
to the windshield and the side window outlets and
half to the oor outlets. The system runs the air
conditioning compressor unless the outside
temperature is near or below freezing.
0(Defrost):This mode directs most of the air to
the windshield and the side window outlets. The
system runs the air conditioning compressor unless
the outside temperature is near or below freezing.
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4. Wait a few minutes for the system to
automatically regulate. Then adjust the
temperature as necessary to nd your
comfort setting.
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 “Sensors” later in this section.
After your vehicle is started, the display will show
the interior temperature settings.
When the ENG/MET (English/metric) button on the
Driver Information Center (DIC) is pressed, the
display will show readings in Fahrenheit or Celsius.
Use the ENG/MET button to toggle between them.
AUTO (Automatic Air Conditioning):If AUTO
is selected on the fan or mode control, the
system will automatically control the air
conditioning compressor. The A/C compressor
will run automatically even at cool outside
temperatures in order to dehumidify the air.
The A/C indicator light will be lit when the system
is operating automatically, even at near
freezing outside temperatures. Press the A/C
button on the fan control to turn off the A/C.For improved window clearing performance in
defog or defrost modes, the A/C compressor will
run automatically in damp cool conditions.
h(Auto Recirculation):If AUTO is selected
on either the fan or mode control, the system
will automatically control the air inlet to supply
fresh outside air or recirculate the interior air
to cool the car faster. The indicator light on the
recirculation button will light whenever the system
switches to recirculation. You may force outside
air by pressing the outside air button. The
next time AUTO fan or mode is selected, the
air inlet will reset back to AUTO operation.
Manual Operation
9(Fan):Turn the left knob either to the left or
right to adjust the fan speed. Turning this control
completely counterclockwise will turn on the
automatic fan operation.
If the airow seems low when the fan speed is at
the highest setting, the passenger compartment air
lter may need to be replaced. For more
information, seePassenger Compartment Air Filter
on page 192andScheduled Maintenance on
page 442.
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9(Off):Turn the left control to this position to
turn the entire climate control system off.
To change the current mode, select one of the
following positions using the right control:
F(Vent):Turn the control to this mode to direct
air to the instrument panel outlets.
*(Bi-Level):Turn the control to this mode to
direct about half of the air to the instrument panel
outlets and 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.
7(Floor):Turn the control to this mode to direct
most of the air to the oor outlets with some air
directed to the side window outlets and the
windshield.
The mode control can also be used to select the
oor/defog mode. Information on defogging
and defrosting can be found later in this section.
#(Air Conditioning):Press this button to
override the automatic system and turn the air
conditioning system on or off. When in AUTO,
the air conditioning compressor will come
on automatically, as necessary.
The air conditioning system removes moisture
from the air, so you may notice a small amount
of water dripping underneath your vehicle while
idling or after turning off the engine. This is normal.
:(Outside Air):This mode allows outside air
to enter the vehicle. It can be used to prevent
the inside from becoming too dry. Press this button
to turn outside air on. Pressing the recirculation
button will cancel this mode. When the button
is pressed, an indicator light will turn on.
?(Recirculation):Press this button to keep
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. Press this button to turn the
recirculation mode on or off. When the button is
pressed, an indicator light will come on.
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There is also an exterior temperature sensor
located behind the front grille. This sensor reads
the outside air temperature and helps maintain
the temperature inside the vehicle. Any cover on
the front of the vehicle could cause a false
reading in the displayed temperature.
In order to prevent false temperature readings at
startup, the displayed temperature will not
change until the following occurs:
Vehicle speed is above 10 mph (16 k/mh) for
5 minutes.
Vehicle speed is above 32 mph (51 k/mh) for
2 and a half minutes.
The climate control system uses the information
from these sensors to maintain your comfort setting
by adjusting the outlet temperature, fan speed, and
the air delivery mode. The system may also supply
cooler air to the side of the vehicle facing the sun.
The recirculation mode will also be used as needed
to maintain cool outlet temperatures.
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 from your windshield, defog and defrost.
W(Floor/Defog):Use this mode to clear the
windows of fog or moisture and to warm the
passengers. Turning the control to this mode
directs about half of the air to the oor outlets and
the remaining air is directed to the side window
outlets and to the windshield. When you select this
mode, the system turns off recirculation and runs
the air-conditioning compressor unless the
outside temperature is at or below freezing.
The recirculation mode cannot be selected while
in the oor/defog mode.
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0(Defrost):Use this mode to remove fog or
frost from the windshield more quickly. Turning the
control to this mode directs most of the air to the
windshield and the side window outlets. In this
mode, the system will automatically turn off
recirculation and run the air-conditioning
compressor, unless the outside temperature is at 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.
<(Rear Defogger):Press this button to turn
the rear window defogger on or off. An indicator
light below the button will come on to let you know
that the rear window defogger is activated. Be
sure to clear as much snow from the rear window
as possible.The rear window defogger will only work when the
ignition is in RUN. The rear window defogger will
stay on for about 20 minutes after the button is
pressed if you are traveling at slower vehicle
speeds. At higher vehicle speeds the rear window
defogger may stay on continuously. If turned
on again, the defogger will only run for about
10 minutes before turning off. The defogger can be
turned off by pressing the button again, by turning
the ignition to ACCESSORY or RUN, or by turning
off the engine.
The heated outside rearview mirrors will heat to
help clear fog or frost from the surface of the mirror
when the rear window defogger is on. SeeOutside
Automatic Dimming Heated Mirror on page 135for
more information.
Notice:Do not use a razor blade or sharp
object to clear the inside rear window. Do not
adhere anything to the defogger grid lines
in the rear glass. These actions may damage
the rear defogger. Repairs would not be
covered by your warranty.
191

CHANGE ENGINE OIL SOON
This message displays when service is required for
the vehicle. See your dealer. SeeEngine Oil on
page 337andScheduled Maintenance on
page 442for more information.
Acknowledging the CHANGE ENGINE OIL SOON
message will not reset the OIL LIFE REMAINING.
That must be done at the OIL LIFE screen
under the vehicle information menu. See “Oil Life”
underDIC Controls and Displays on page 212
andEngine Oil Life System on page 340.
CHECK TIRE PRESSURE
This message displays when the tire pressure in
one of the tires needs to be checked. This message
also displays LEFT FRONT, RIGHT FRONT, LEFT
REAR, or RIGHT REAR to indicate which tire needs
to be checked. You can receive more than one tire
pressure message at a time. To read the other
messages that may have been sent at the same
time, press the set/reset button. If a tire pressure
message appears on the DIC, stop as soon as you
can. Have the tire pressures checked and set to
those shown on the Tire Loading Information Label.SeeTires on page 385,Loading Your Vehicle
on page 307, andInation - Tire Pressure on
page 392. The DIC display also shows the tire
pressure values for the front and rear tires by
pressing the vehicle information button. SeeDIC
Controls and Displays on page 212. If the tire
pressure is low, the low tire pressure warning light
comes on. SeeTire Pressure Light on page 205.
DRIVER DOOR OPEN
This message displays when the driver’s door is
not closed properly. When this message appears,
make sure that the driver’s door is closed
completely.
ENGINE HOT A/C
(Air Conditioning) 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 automatically resumes.
You can continue to drive your vehicle. If this
message continues to appear, have the system
repaired by your dealer as soon as possible to
avoid compressor damage.
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REMOTE KEY LEARNING ACTIVE
This message displays while you are matching
a Remote Keyless Entry (RKE) transmitter to your
vehicle. See “Matching Transmitter(s) to Your
Vehicle” underRemote Keyless Entry (RKE)
System Operation on page 95andDIC Controls
and Displays on page 212for more information.
REPLACE BATTERY IN REMOTE KEY
This message displays when the battery in the
Remote Keyless Entry (RKE) transmitter needs to
be replaced. To replace the battery, see “Battery
Replacement” underRemote Keyless Entry (RKE)
System Operation on page 95.
RIGHT REAR DOOR OPEN
This message displays when the passenger’s
side rear door is not closed properly. When this
message appears, make sure that the passenger’s
door is closed completely.
SERVICE A/C (Air Conditioning)
SYSTEM
This message displays when the electronic
sensors that control the air conditioning and
heating systems are no longer working. Have the
climate control system serviced by your dealer
if you notice a drop in heating and air conditioning
efficiency.
SERVICE AIR BAG
This message displays when there is a problem
with the airbag system. Have your vehicle serviced
by your dealer immediately. SeeAirbag Readiness
Light on page 197for more information.
SERVICE BATTERY CHARGING
SYSTEM
This message displays when there is a problem
with the generator and battery charging systems.
Driving with this problem could drain the battery.
Turn off all unnecessary accessories. Stop
and turn off the vehicle as soon as it is safe to do
so. Have the electrical system checked by your
dealer immediately.
226

(C) Aspect Ratio:A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 60,
as shown in item C of the illustration, it would
mean that the tire’s sidewall is 60 percent 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 R means radial ply construction;
the letter D means diagonal or bias ply
construction; and the letter B means belted-bias
ply construction.
(E) Rim Diameter:Diameter of the wheel in
inches.
(F) Service Description:These characters
represent the load range and speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The load index
can range from 1 to 279. The speed rating is
the maximum speed a tire is certied to carry a
load. Speed ratings range from A to Z.Tire Terminology and Denitions
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/
transaxle, 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.
389

Fuses Usage
F7 Spare
F8 Spare
F9 Spare
F10Passenger’s Side High-Beam
Headlamp
F11 Driver’s Side High-Beam Headlamp
F12 Windshield Washer Pump
F13 Spare
F14Climate Controls, Instrument Panel
Cluster
F15 Spare
F16 Fog Lamps
F17 Horn
F18 Windshield Wiper
F19 Driver’s Side Corner Lamp
F20 Passenger’s Side Corner Lamp
F21 Oxygen Sensor
F22 Powertrain
F23Engine Control Module (ECM),
Crank
F24 Injector Coil
F25 Injector Coil
F26 Air Conditioning
F27 Air SolenoidFuses Usage
F28Engine Control Module, Transaxle
Control Module (ECM/TCM)
F29 Spare
F30 Spare
F31 Spare
F32 Spare
J-Case Fuse Usage
JC1 Heated Windshield Washer
JC2 Cooling Fan 1
JC3 Spare
JC4 Crank
JC5 Cooling Fan 2
JC6 Anti-lock Brake System 2
JC7 Anti-lock Brake System 1
JC8 Air Pump
Relays Usage
R1 Cooling Fan 1
R2 Cooling Fan
R3 Crank
R4 Powertrain
R5 Spare
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