
Black plate (17,1)Buick Lucerne Owner Manual - 2011
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 4‑25and
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:
H(Vent): Air is directed to the instrument panel
outlets.
)(Bi-Level): Air is divided between the instrument
panel outlets and the floor outlets. Slightly cooler air is
directed to the instrument panel outlets and warmer air
is directed to the floor outlets.
6(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.
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Black plate (19,1)Buick Lucerne Owner Manual - 2011
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear Window Defogger):Press to turn the rear
window defogger on or off. An indicator light below the
button comes on to show that the rear window defogger
is on. Be sure to clear as much snow from the rear
window as possible.
The rear window defogger only works when the
ignition is in ON/RUN. The rear window defogger stays
on for about 20 minutes after the button is pressed if
traveling at slow speeds. At higher vehicle speeds, the
rear defogger may stay on continuously. If turned on
again, the defogger only runs for about 10 minutes
before turning off. The defogger can be turned off by
pressing the button again, by turning the ignition to
ACC/ACCESSORY or ON/RUN, or by turning off the
engine. If the vehicle has heated outside rearview mirrors, the
mirrors heat to help clear fog or frost from the surface
of the mirror when the rear window defogger is on.
See
Outside Heated Mirrors
on page 3‑34for more
information.
Notice: Do not use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs would not be
covered by the vehicle warranty. Do not attach a
temporary vehicle license, tape, a decal, or anything
similar to the defogger grid.
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Black plate (20,1)Buick Lucerne Owner Manual - 2011
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
Automatic Operation
AUTO (Automatic Fan): When AUTO is selected on
the fan control, the system automatically adjusts the fan
speed. If the OnStar
®system is activated when this
position is selected, the fan speed will lower.
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Black plate (22,1)Buick Lucerne Owner Manual - 2011
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 4‑25and
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.
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.
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Black plate (24,1)Buick Lucerne Owner Manual - 2011
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.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
<(Rear Defogger): Press to turn the rear window
defogger on or off. An indicator light below the button
comes on to show that the rear window defogger is on.
Be sure to clear as much snow from the rear window as
possible.
The rear window defogger only works when the ignition
is in ON/RUN. The rear window defogger stays on for
about 20 minutes after the button is pressed if the
vehicle is traveling at slower vehicle speeds. At higher
vehicle speeds the rear window defogger may stay on
continuously. If turned on again, the defogger only runs
for about 10 minutes before turning off. The defogger
can be turned off by pressing the button again, by
turning the ignition to ACC/ACCESSORY or ON/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. See Outside Heated
Mirrors
on page 3‑34for 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.
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Black plate (25,1)Buick Lucerne Owner Manual - 2011
Outlet Adjustment
Use the levers, located in the middle of the front
outlets, to change the direction of the airflow. Use the
thumbwheel located between the outlets to turn them on
and off.
If the vehicle has rear seat outlets, adjust the direction
of the airflow using the lever in the center of each outlet.
Operation Tips
.Clear away any ice, snow, or leaves from the air
inlets at the base of the windshield that could block
the flow of air into the vehicle.
.Use of non-GM approved hood deflectors can
adversely affect the performance of the system.
.Keep the path under the front seats clear of
objects to help circulate the air inside the vehicle
better.
Passenger Compartment Air Filter
Outside air is routed through a passenger compartment
air filter before entering the vehicle. This filter removes
certain particles from the air, including pollen and dust
particles. The filter should be replaced as part of routine
scheduled maintenance. SeeScheduled Maintenance
on page 7‑3for when to replace the filter. The access panel for the passenger compartment air
filter is located under the hood near the windshield, on
the passenger's side of the vehicle.
To access the passenger compartment air filter, do the
following:
1. Press the tabs back and left to remove the cover.
2. Insert a tool behind the push pin located on the inboard side of the air filter compartment to
carefully pry the pin out.
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Black plate (29,1)Buick Lucerne Owner Manual - 2011
Speedometer and Odometer
The speedometer shows the vehicle speed in both
miles per hour (mph) and kilometers per hour (km/h).
The odometer shows how far the vehicle has been
driven, in either miles or kilometers.
This vehicle has a tamper resistant odometer.
If the vehicle needs a new odometer installed, the new
one can be set to the mileage total of the old odometer.
If this is not possible, it is set to zero and a label must
be put on the driver's door to show the old mileage
reading when the new odometer was installed.
Trip Odometer
A trip odometer show how far the vehicle has been
driven since the odometer was last set to zero. See
Driver Information Center (DIC)
on page 4‑42for
information on resetting the trip odometer.
Tachometer
The tachometer displays the engine speed in
revolutions per minute (rpm).
Safety Belt Reminders
Driver Safety Belt Reminder Light
When the engine is started, a chime sounds for several
seconds to remind a driver to fasten the safety belt,
unless the driver safety belt is already buckled.
The safety belt light
comes on and stays on
for several seconds, then
flashes for several more.
This chime and light are repeated if the driver remains
unbuckled and the vehicle is in motion. If the driver
safety belt is already buckled, neither the chime nor the
light comes on.
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Black plate (30,1)Buick Lucerne Owner Manual - 2011
Passenger Safety Belt Reminder Light
For vehicles equipped with the passenger safety belt
reminder light, several seconds after the engine is
started, a chime sounds for several seconds to remind
the front passenger to buckle their safety belt. The
passenger safety belt light, located on the instrument
panel, comes on and stays on for several seconds and
then flashes for several more.
This chime and light are
repeated if the passenger
remains unbuckled and
the vehicle is in motion.
If the passenger safety belt is buckled, neither the
chime nor the light comes on.
The front passenger safety belt warning light and chime
may turn on if an object is put on the seat such as a
briefcase, handbag, grocery bag, laptop or other
electronic device. To turn off the warning light and or
chime, remove the object from the seat or buckle the
safety belt.
Airbag Readiness Light
The system checks the airbag's electrical system for
possible malfunctions. If the light stays on it indicates
there is an electrical problem. The system check
includes the airbag sensor, the pretensioners, the
airbag modules, the wiring and the crash sensing and
diagnostic module. For more information on the airbag
system, see Airbag System on page 2‑55.
The airbag readiness light
flashes for a few seconds
when the engine is
started. If the light does
not come on then, have it
fixed immediately.
{WARNING:
If the airbag readiness light stays on after the
vehicle is started or comes on while driving, it
means the airbag system might not be working
properly. The airbags in the vehicle might not
inflate in a crash, or they could even inflate
without a crash. To help avoid injury, have the
vehicle serviced right away.
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