BUICK LUCERNE 2007 Owner's Manual

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.
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Outlet Adjustment
Use the levers, located in the middle of the front
outlets, to change the direction of the airow.
Use the thumbwheel located between the outlets
to turn them on and off.
If your vehicle has rear seat outlets, adjust the
direction of the airow 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 ow of air into your vehicle.
Use of non-GM approved hood deectors 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
The passenger compartment air lter traps most of
the pollen from the air entering your vehicle. Like
your vehicle’s engine air cleaner/lter, it may need
to be changed periodically. For how often to change
the passenger compartment air lter, see
Scheduled Maintenance on page 442.
The access panel for the passenger compartment
air lter is located under the hood near the
windshield, on the passenger’s side of the vehicle.
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To access the passenger compartment air lter,
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 lter compartment
to carefully pry the pin out.3. To remove the air lter, insert a tool between
the air lter and the compartment wall on the
outboard side of the vehicle. Then, push in to
atten the pin holding the air lter in place.
Gently remove the air lter and any loose
debris that may be inside the air lter
compartment.
4. Insert the new air lter by pushing until you
hear a click. Reinstall the push pin and snap
the cover into place.
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Warning Lights, Gages, and
Indicators
This part describes the warning lights and gages
that may be on your vehicle. The pictures will
help you locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to
cause an expensive repair or replacement. Paying
attention to your warning lights and gages could
also save you or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As you
will see in the details on the next few pages, some
warning lights come on briey when you start the
engine just to let you know they are working. If you
are familiar with this section, you should not be
alarmed when this happens.
Gages can indicate when there may be or is a
problem with one of your vehicle’s functions.
Often gages and warning lights work together to
let you know when there is a problem with
your vehicle.When one of the warning lights comes on and stays
on when you are driving, or when one of the gages
shows there may be a problem, check the section
that tells you what to do about it. Please follow this
manual’s advice. Waiting to do repairs can be
costly — and even dangerous. So please get to
know your warning lights and gages. They are a
big help.
Your vehicle has a DIC that works along with the
warning lights and gages. SeeDriver Information
Center (DIC) on page 212.
Instrument Panel Cluster
Your instrument panel cluster is designed to let
you know at a glance how your vehicle is running.
You will know how fast you are going, how
much fuel you have, and many other things you
will need to drive safely and economically.
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Your vehicle has this cluster or one very similar to it. It includes indicator warning lights and gages that
are explained on the following pages. Be sure to read about them.
United States shown, Canada similar
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Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour
(km/h). Your odometer shows how far your vehicle
has been driven, in either miles or kilometers.
Your vehicle has a tamper resistant odometer.
You may wonder what happens if your vehicle
needs a new odometer installed. If the new one
can be set to the mileage total of the old odometer,
then it must be. But if it cannot, then it is set at
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 can tell you how far you have
driven since you last set it to zero. SeeDriver
Information Center (DIC) on page 212for
information on resetting the trip odometer.
Tachometer
The tachometer tells you how fast the engine is
running. It displays engine speed in thousands of
revolutions per minute (rpm).
Safety Belt Reminder Light
When the key is turned to RUN or START, a chime
will be provided for several seconds to remind
people to buckle their safety belts. The driver
safety belt light will also be provided and stay on
for several seconds, then it will ash for several
more. You should buckle your seat belt.
This chime and light will
be repeated if the driver
remains unbuckled and
the vehicle is in motion.
If the driver’s belt is buckled, neither the chime nor
the light will be provided.
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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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If the airbag readiness light stays on after you
start the vehicle or comes on when you are driving,
your airbag system may not work properly.
Have your vehicle serviced right away.
{CAUTION:
If the airbag readiness light stays on after
you start your vehicle, it means the airbag
system may not be working properly. The
airbags in your vehicle may not inate in
a crash, or they could even inate without
a crash. To help avoid injury to yourself
or others, have your vehicle serviced right
away if the airbag readiness light stays on
after you start your vehicle.
The airbag readiness light should ash for a few
seconds when you turn the ignition key to RUN.
If the light does not come on then, have it xed so
it will be ready to warn you if there is a problem.
If there is a problem with the airbag system in your
vehicle, the Service airbag message will appear
on the DIC display. SeeDIC Warnings and
Messages on page 221for more information.
Passenger Airbag Status Indicator
Your vehicle has the passenger sensing system.
Your overhead console has a passenger airbag
status indicator.
When the ignition key is turned to RUN or START,
the passenger airbag status indicator will light ON
and OFF, or the symbol for on and off, for several
seconds as a system check. Then, after several
more seconds, the status indicator will light either
ON or OFF, or either the on or off symbol to let you
know the status of the right front passenger’s frontal
airbag and seat-mounted side impact airbag.
If the word ON or the on symbol is lit on the
passenger airbag status indicator, it means that
the right front passenger’s frontal airbag and
seat-mounted side impact airbag are enabled
(may inate).
United StatesCanada
198

{CAUTION:
If the on indicator comes on when you have
a rear-facing child restraint installed in the
right front passenger’s seat, it means that
the passenger sensing system has not
turned off the passenger’s frontal airbag
and seat-mounted side impact airbag.
A child in a rear-facing child restraint can
be seriously injured or killed if the right
front passenger’s airbag inates. This is
because the back of the rear-facing child
restraint would be very close to the
inating airbag. Do not use a rear-facing
child restraint in the right front passenger’s
seat if the airbag is turned on.
Your vehicle has a rear seat that will accommodate
a rear-facing child restraint. A label on your sun
visor says, “Never put a rear-facing child seat
in the front.” This is because the risk to the
rear-facing child is so great, if the airbag deploys.
{CAUTION:
Even though the passenger sensing
system is designed to turn off the
passenger’s frontal airbag and
seat-mounted side impact airbag if the
system detects a rear-facing child restraint,
no system is fail-safe, and no one can
guarantee that an airbag will not deploy
under some unusual circumstance, even
though it is turned off. We recommend that
rear-facing child restraints be secured in
the rear seat, even if the airbag is off.
If the word OFF or the off symbol is lit on the
airbag status indicator, it means that the passenger
sensing system has turned off the right front
passenger’s frontal airbag and seat-mounted side
impact airbag. SeePassenger Sensing System on
page 81for more on this, including important safety
information.
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If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag readiness
light ever come on together, it means that
something may be wrong with the airbag
system. If this ever happens, have the
vehicle serviced promptly, because an
adult-size person sitting in the right front
passenger seat may not have the
protection of the airbags. SeeAirbag
Readiness Light on page 197.
Charging System Light
When you turn the key to
RUN or START, this light
will come on briey to
show that it is working.
If this light stays on, your vehicle needs service.
You should take your vehicle to the dealer at once.
To save your battery until you get there, turn off
all accessories.
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