2007 BUICK LUCERNE sensor

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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wx(Driver’s Temperature Controls):Press
these buttons next to the fan control to manually
increase or decrease the temperature inside
your vehicle.
wx(Passenger’s Temperature Controls):
Press these buttons next to the mode control to
manually increase or decrease the temperature for
the front passenger. If the passenger’s climate
control system is off, pressing one of these buttons
will turn it on.
PASS (Passenger’s Climate Control):Press
this button to turn the passenger’s climate control
systems on or off.
If the PASS button is pressed to turn the
passenger temperature setting off, the driver’s
temperature setting will control the temperature
for the entire vehicle.
Sensors
The solar sensor, located in the defrost grille,
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 your vehicle.
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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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Passenger Safety Belt
Reminder Light
Several seconds after the key is turned to RUN or
START, a chime will sound for several seconds to
remind the front passenger to buckle their safety
belt. This would only occur if the passenger airbag
is enabled. SeePassenger Sensing System on
page 81for more information. The passenger
safety belt light will also come on and stay on for
several seconds, then it will ash for several more.
This chime and light
will be repeated if the
passenger remains
unbuckled and the
vehicle is in motion.
If the passenger’s safety belt is buckled, neither
the chime nor the light will come on.
Airbag Readiness Light
There is an airbag readiness light on the instrument
panel, which shows the airbag symbol. The system
checks the airbag’s electrical system for
malfunctions. The light tells you if there is an
electrical problem. The system check includes the
airbag sensors, the airbag modules, the wiring and
the diagnostic module. For more information on the
airbag system, seeAirbag System on page 70.
This light will come on
when you start your
vehicle, and it will ash
for a few seconds. Then
the light should go out.
This means the system
is ready.
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Units
Press the vehicle information button until UNITS
displays. This display allows you to select between
English or Metric units of measurement. Once in
this display, press the set/reset button to select
between ENGLISH or METRIC units.
Tire Pressure
The pressure for each tire can be viewed in the
DIC. The tire pressure will be shown in either
pounds per square inch (psi) or kilopascals (kPa).
Press the vehicle information button until the
DIC displays FRONT TIRES PSI (kPa) LEFT ##
RIGHT ##. Press the vehicle information button
again until the DIC displays REAR TIRES
PSI (kPa) LEFT ## RIGHT ##.
If a low or high tire pressure condition is detected by
the system while driving, a message advising you
to check the pressure in a specic tire will appear
in the display. SeeInation - Tire Pressure on
page 392andDIC Warnings and Messages on
page 221for more information.
If the tire pressure display shows dashes instead of
a value, there may be a problem with your vehicle.
If this consistently occurs, see your dealer for
service.
Learn Tire Positions
To access this display, the vehicle must be in
PARK (P). After rotating the tires or after replacing
a tire or sensor, the Tire Pressure Monitor (TPM)
system must re-learn the tire positions. To re-learn
the tire positions, seeTire Pressure Monitor System
on page 393. SeeTire Inspection and Rotation on
page 398andDIC Warnings and Messages on
page 221for more information.
Compass Zone
Your vehicle may have this feature. Under
certain circumstances, such as during a long
distance cross-country trip, it will be necessary to
compensate for compass variance and reset the
zone. To change the compass zone through the
DIC, seeDIC Compass on page 218.
Compass Calibration
The compass can be manually calibrated. To
calibrate the compass through the DIC, seeDIC
Compass on page 218.
217

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

SERVICE STABILITRAK
If your vehicle has StabiliTrak®, this message
displays if there has been a problem detected with
StabiliTrak
®. A warning light also appears on
the instrument panel cluster. SeeTraction Control
System (TCS) Warning Light on page 202. See
StabiliTrak
®System on page 284for more
information.
If this message turns on while you are driving, pull
off the road as soon as possible and stop carefully.
Try resetting the system by turning the ignition off
and then back on. If this message still stays on or
turns back on again while you are driving, your
vehicle needs service. Have the StabiliTrak
®
System inspected by your dealer as soon as
possible.
SERVICE SUSPENSION SYSTEM
This message displays to indicate that the
suspension system is not operating properly.
See your dealer for service.
SERVICE THEFT SYSTEM
This message displays when there is a problem
with the theft-deterrent system programmed in the
key. A fault has been detected in the system which
means that the system is disabled and it is not
protecting the vehicle. The vehicle usually restarts;
however, you may want to take the vehicle to
your dealer before turning off the engine. See
PASS-Key
®III+ on page 111for more information.
SERVICE TIRE MONITOR SYSTEM
This message displays if a part on the Tire
Pressure Monitor (TPM) system is not working
properly. If you drive your vehicle while any of the
four sensors are missing or inoperable, the warning
comes on in about 20 minutes. A sensor would be
missing, for example, if you put different wheels on
your vehicle without transferring the sensors. If the
warning comes on and stays on, there may be a
problem with the TPM. See your dealer.
228

THEFT ATTEMPTED
This message displays if the content theft-deterrent
system has detected a break-in attempt while
you were away from your vehicle. SeeContent
Theft-Deterrent on page 110for more information.
TIGHTEN GAS CAP
This message may be displayed if the gas cap is
not on, or is not fully tightened. Check the gas
cap to ensure that it is on properly. SeeFilling the
Tank on page 330for more information.
TIRE LEARNING ACTIVE
This message displays when the Tire Pressure
Monitor (TPM) system is re-learning the tire
positions. SeeTire Pressure Monitor System on
page 393. The tire positions must be re-learned
after rotating the tires or after replacing a tire
or sensor. SeeTire Inspection and Rotation on
page 398andInation - Tire Pressure on page 392
for more information.
TRACTION CONTROL OFF
This message displays when the Traction Control
System (TCS) is turned off. Adjust your driving
accordingly. SeeTraction Control System
(TCS) on page 283for more information.
TRACTION CONTROL ON
This message displays when the Traction Control
System (TCS) is turned on. SeeTraction Control
System (TCS) on page 283for more information.
TRANSMISSION HOT IDLE ENGINE
This message displays when the transaxle uid in
your vehicle is too hot. Stop the vehicle and
allow it to idle until it cools down. If the warning
message continues to display, have the vehicle
serviced by your dealer as soon as possible.
TRUNK OPEN
This message displays when the trunk is not
closed completely. Make sure that the trunk is
closed completely. SeeTrunk on page 106.
230