climate control BUICK LUCERNE 2010 User Guide

Section 4 Instrument Panel
Instrument Panel Overview. . . . . . . . . . . . . . . . . . . . . . . .4-3
Hazard Warning Flashers . . . . . . . . . . . . . . . . . . . . . . . 4-3
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tilt Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Power Tilt Wheel and Telescopic Steering Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Heated Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Turn Signal/Multifunction Lever . . . . . . . . . . . . . . . . . . 4-5
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . 4-5
Headlamp High/Low-Beam Changer . . . . . . . . . . . . 4-6
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Windshield Wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Rainsense™ II Wipers . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Windshield Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Exterior Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Wiper Activated Headlamps . . . . . . . . . . . . . . . . . . . 4-13
Headlamps on Reminder . . . . . . . . . . . . . . . . . . . . . . 4-13
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . 4-13
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Cornering Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . 4-14
Instrument Panel Brightness . . . . . . . . . . . . . . . . . . . 4-14
Courtesy Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Delayed Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 4-15 Theater Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Delayed Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Perimeter Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Front Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Electric Power Management . . . . . . . . . . . . . . . . . . . 4-16
Inadvertent Power Battery Saver . . . . . . . . . . . . . . . 4-16
Battery Run-Down Protection . . . . . . . . . . . . . . . . . . 4-17
Accessory Power Outlet(s) . . . . . . . . . . . . . . . . . . . . . 4-17
Ashtray(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . 4-18
Dual Automatic Climate Control System . . . . . . . 4-22
Outlet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Passenger Compartment Air Filter . . . . . . . . . . . . . 4-28
Warning Lights, Gauges, and Indicators . . . . . . . .4-30
Instrument Panel Cluster . . . . . . . . . . . . . . . . . . . . . . . 4-30
Speedometer and Odometer . . . . . . . . . . . . . . . . . . . 4-32
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Safety Belt Reminders . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Airbag Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . 4-33
Passenger Airbag Status Indicator . . . . . . . . . . . . . 4-34
Charging System Light . . . . . . . . . . . . . . . . . . . . . . . . 4-35
Brake System Warning Light . . . . . . . . . . . . . . . . . . . 4-36
Antilock Brake System (ABS) Warning Light . . . 4-37
4-1

Electric Power Management
The vehicle has Electric Power Management (EPM) that
estimates the battery's temperature and state of charge.
It then adjusts the voltage for best performance and
extended life of the battery.
When the battery's state of charge is low, the voltage is
raised slightly to quickly bring the charge back up.
When the state of charge is high, the voltage is lowered
slightly to prevent overcharging. If the vehicle has a
voltmeter gauge or a voltage display on the Driver
Information Center (DIC), you may see the voltage
move up or down. This is normal. If there is a problem,
an alert will be displayed.
The battery can be discharged at idle if the electrical
loads are very high. This is true for all vehicles. This is
because the generator (alternator) may not be spinning
fast enough at idle to produce all the power that is
needed for very high electrical loads.
A high electrical load occurs when several of the
following are on, such as: headlamps, high beams, fog
lamps, rear window defogger, climate control fan at high
speed, heated seats, engine cooling fans, trailer loads,
and loads plugged into accessory power outlets.EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator's output
and the vehicle's electrical needs. It can increase
engine idle speed to generate more power, whenever
needed. It can temporarily reduce the power demands
of some accessories.
Normally, these actions occur in steps or levels, without
being noticeable. In rare cases at the highest levels of
corrective action, this action may be noticeable to the
driver. If so, a Driver Information Center (DIC) message
might be displayed, such as BATTERY SAVER
ACTIVE, BATTERY VOLTAGE LOW, or LOW
BATTERY. If this message is displayed, it is
recommended that the driver reduce the electrical loads
as much as possible. See
DIC Warnings and Messages
on page 4‑55.
Inadvertent Power Battery Saver
This feature is designed to protect your vehicle's battery
against drainage from the interior lamps, or garage
door opener. When the ignition is turned off, the power
to these features will automatically turn off after
10 minutes. Power will be restored for an additional
10 minutes if any door is opened, the trunk is opened or
the courtesy lamp switch is turned on.
4-16

Battery Run-Down Protection
This feature helps prevent the battery from being
drained, if the interior courtesy lamps, reading/map
lamps, visor vanity lamps or trunk lamp are accidentally
left on. If any of these lamps are left on, they
automatically turn off after 10 minutes, if the ignition is
off. The lamps will not come back on again until one of
the following occurs:
.The ignition is turned on.
.The exterior lamps control is turned off, then on
again.
The headlamps will timeout after 10 minutes, if they are
manually turned on with the ignition on or off.
Accessory Power Outlet(s)
The accessory power outlets can be used to plug in
electrical equipment, such as a cellular telephone.
The vehicle may have up to three power outlets
depending on the type of front seat installed. If
the vehicle has front bucket seats with a center
console, there are two outlets inside the rear storage
compartment. An extra power outlet can be found under
the climate control system next to the ashtray.
The vehicle may have a small cap that must be pulled
down to access the accessory power outlet. Cover the
outlet with the protective cap when it is not being used. Notice:
Leaving electrical equipment on for
extended periods will drain the battery. Always
turn off electrical equipment when not in use
and do not plug in equipment that exceeds the
maximum amperage rating.
Certain electrical accessories may not be compatible to
the accessory power outlets and could result in blown
vehicle or adapter fuses. If you experience a problem
see your dealer for additional information on the
accessory power outlets.
Notice: Adding any electrical equipment to the
vehicle can damage it or keep other components
from working as they should. The repairs would not
be covered by the vehicle warranty. Do not use
equipment exceeding maximum amperage rating of
20 amperes. Check with your dealer before adding
electrical equipment.
When adding electrical equipment, be sure to follow
the proper installation instructions included with the
equipment.
Notice: Improper use of the power outlet can cause
damage not covered by the vehicle warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.
4-17

Ashtray(s)
Notice:If papers, pins, or other flammable items are
put in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
the vehicle. Never put flammable items in the
ashtray.
For vehicles without the floor console, pull the tray
located below the climate controls to reveal the ashtray.
The ashtray can be removed by pulling on the ledge
located at the top of the ashtray.
The vehicles with a full floor console do not have an
ashtray. There is a storage bin below the climate control
system. For more information, see Front Storage Area
on page 3‑51.
Climate Controls
Climate Control System
The heating, cooling, and ventilation for the vehicle can
be controlled with this system.
For vehicles with the remote start feature, when
activated, the climate control system heats or cools the
inside of the vehicle with the settings used before the
vehicle was turned off. The heated seats, if the vehicle
has them, and the rear window defogger will also be
turned on when it is cold outside. The cooled seat
setting is not activated during a remote start. Normal
operation of the system will return after the key is
turned to the ON/RUN position. See Remote Keyless
Entry (RKE) System Operation
on page 3‑4for more
information.
4-18

A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control D. Recirculation
E. Air Conditioning F. Rear Window Defogger
Operation
(
(Off): Turns the climate control system off. Outside
air still enters the vehicle and is directed to the floor.
The airflow direction and temperature can be adjusted.
Temperature Control: Turn clockwise or
counterclockwise to increase or decrease the
temperature.
9(Fan Control): Turn clockwise or counterclockwise
to increase or decrease the fan speed. The fan speed is
temporarily reduced between the transition to a new
mode. The fan will resume when the new mode is
complete.
If the airflow seems low when the fan speed is at the
highest setting, the passenger compartment air filter
may need to be replaced. For more information, see
Passenger Compartment Air Filter
on page 4‑28and
Scheduled Maintenance on page 7‑3.
Air Delivery Mode Control: Turn clockwise or
counterclockwise to change the direction of the airflow
in the vehicle.
4-19

Dual Automatic Climate Control
System
The heating, cooling, and ventilation for the vehicle can
be controlled with this system.
For vehicles with the remote start feature and it is
activated, the climate control system heats or cools the
inside of the vehicle, with the settings used before the
vehicle was turned off. The heated seats, if the vehicle
has them, and the rear window defogger will be turned
on by the climate control system when it is cold outside.
The cooled seat setting is not activated during a remote
start. Normal operation of the system will return after
the key is turned to the ON/RUN position. SeeRemote
Keyless Entry (RKE) System Operation
on page 3‑4for more information.
A. Driver and Passenger
Temperature Controls
B. Fan Control
C. Display
D. Air Delivery Mode Control E. Air Conditioning
F. Outside Air
G. Recirculation
H. PASS I. Rear Window Defogger
4-22

h(Auto Recirculation) :If AUTO is selected on
either the fan or mode control, the system automatically
controls the supply of fresh outside air or recirculates
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, it will reset back to
AUTO operation.
Manual Operation
9(Off): Turns the climate control system off. Outside
air still enters the vehicle and is directed to the floor.
The airflow direction and temperature can be adjusted.
If the temperature is adjusted while the system is off,
the display will light to show the current settings.
w x(Driver Temperature Controls): Press these
buttons next to the fan control to increase or decrease
the temperature inside the vehicle.
w x(Passenger Temperature Controls): Press
these buttons next to the mode control to increase or
decrease the temperature for the front passenger. If the
passenger climate control system is off, pressing one of
these buttons turns it on.
9(Fan Control): Turn clockwise or counterclockwise
to increase or decrease the fan speed. Turning this
control completely counterclockwise turns on the
automatic fan operation.
If the airflow seems low when the fan speed is at the
highest setting, the passenger compartment air filter
may need to be replaced. For more information, see
Passenger Compartment Air Filter
on page 4‑28and
Scheduled Maintenance on page 7‑3.
Air Delivery Mode Control: Turn clockwise or
counterclockwise to change the direction of the airflow
in the vehicle.
To change the current mode, select one of the following:
F(Vent): Air is directed to the instrument panel outlets.
*(Bi-Level): Air is divided between the instrument
panel outlets and the floor outlets. In automatic
operation, cooler air is directed to the upper outlets and
warmer air to the floor outlets.
7(Floor): Air is directed to the floor outlets, with some
air directed to the windshield and side window outlets.
If recirculation is selected while in this mode, it stays on
for three minutes to reduce windshield fogging.
4-24

W(Floor/Defog):This mode clears the windows of fog
or moisture. Air is directed to the floor outlets, with
some air directed to the windshield and side window
outlets. 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 floor/defog mode.
0(Defrost): This mode removes fog or frost from the
windshield more quickly. Air is directed to the
windshield and the side window outlets. The system
automatically turns off recirculation and runs the
air-conditioning compressor, unless the outside
temperature is at or below freezing. Recirculation
cannot be selected while in the defrost mode.
#(Air Conditioning): Press to turn the air
conditioning system on or off and override the
automatic system. An indicator light below the
button comes on to show that this mode is on.
The air conditioning system removes moisture from the
air, so a small amount of water might drip under the
vehicle while idling or after turning off the engine. This
is normal.
:(Outside Air): Press to let outside air enter the
vehicle. An indicator light comes on to show this mode
is on. Pressing
?cancels this mode.
?(Recirculation): Press to turn the recirculation
mode on. An indicator light below the button comes on
to show that this mode is on. This mode recirculates
and helps to quickly cool the air inside the vehicle.
It can be used to prevent outside air and odors from
entering the vehicle. This mode cannot be selected
while in the defog or defrost modes. If you try to select
the recirculation mode, the indicator light flashes three
times and turns off.
Operation in this mode during periods of high humidity
and cool outside temperatures may result in increased
window fogging. If window fogging is experienced,
select the defrost mode.
PASS (Passenger Climate Control): Press to turn the
passenger climate control systems on or off.
When the passenger climate control system is on, the
passenger temperature setting is displayed.
If the PASS button is pressed to turn the passenger
temperature setting off, the driver temperature setting
controls the temperature for the entire vehicle.
4-25

Sensors
The solar sensor, located in the defrost grille, in the
middle of the instrument panel, monitors the solar
radiation. Do not cover the solar sensor or the system
will not work properly.
There is also an interior temperature sensor located
next to the steering wheel that measures the
temperature of the air inside the vehicle.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 temperature reading to display.
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 km/h) for
five minutes.
.Vehicle speed is above 32 mph (51 km/h) for
two 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.
4-26

Compass Calibration
The compass can be manually calibrated. Only calibrate
the compass in a magnetically clean and safe location,
such as an open parking lot, where driving the vehicle
in circles is not a danger. It is suggested to calibrate
away from tall buildings, utility wires, manhole covers,
or other industrial structures, if possible.
If CAL should ever appear in the DIC display, the
compass should be calibrated.
If the DIC display does not show a heading, for
example, N for North, or the heading does not change
after making turns, there may be a strong magnetic field
interfering with the compass. Interference may be
caused by a magnetic antenna mount, magnetic note
pad holder, or any other magnetic item. Turn off the
vehicle, move the magnetic item, then turn on the
vehicle and calibrate the compass.To calibrate the compass, use the following procedure:Compass Calibration Procedure
1. Before calibrating the compass, check that the
compass zone is set to the variance zone in which
the vehicle is located. See “Compass Variance
(Zone) Procedure” earlier in this section.
Do not operate any switches such as window,
sunroof, climate controls, seats, etc. during the
calibration procedure.
2. Press the vehicle information button until PRESS
VTO CALIBRATE COMPASS displays.
3. Press the set/reset button to start the compass calibration.
4. The DIC will display CALIBRATING: DRIVE IN CIRCLES. Drive the vehicle in tight circles at less
than 5 mph (8 km/h) to complete the calibration.
The DIC will display CALIBRATION COMPLETE
for a few seconds when the calibration is complete.
The DIC display will then return to PRESS
VTO
CALIBRATE COMPASS.
4-54