2009 BUICK LACROSSE warning light
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2(Headlamps):Turn the control to this position to
turn on the headlamps together with the following lamps
listed below.
A warning chime will sound if the driver’s door is
opened when the ignition switch is turned to LOCK/OFF
or ACC/ACCESSORY and the headlamps or parking
lamps are on.
Parking Lamps
Taillamps
License Plate Lamps
Instrument Panel Lights
#(Fog lamps) (If Equipped):Push the fog lamps
button to turn them on and off. SeeFog Lamps
on page 3-15for additional information.
Daytime Running Lamps (DRL)/
Automatic Headlamp System
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving conditions,
but they can be especially helpful in the short periods
after dawn and before sunset. DRL lamps are required
to function at all times on all vehicles rst sold in Canada.
A light sensor on top of the instrument panel makes the
DRL work, so be sure it is not covered.
The DRL system will make the low-beam headlamps
come on at reduced brightness when the following
conditions are met:
The ignition is on.
The exterior lamps control is off.
The parking brake is released.
While the DRL are on, only the vehicle’s low-beam
headlamps will be on at reduced brightness. The turn
signal, taillamps, sidemarker, and other lamps will not
be on. The instrument panel will not be lit up either.
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9. Remove the old air lter.
10. Install a new passenger compartment air lter.
SeeMaintenance Replacement Parts on page 6-13
for the type of lter to use. Make sure it slides
under the compartment retainers.
11. Reverse Steps 1 through 8.
For best climate control performance, re-installation of a
clean air lter is required.
Warning Lights, Gages, and
Indicators
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
the warning lights and gages could prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on brie y when the engine is
started to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there may
be a problem, check the section that explains what to do.
Follow this manual’s advice. Waiting to do repairs can be
costly and even dangerous.
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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, seeAirbag
System on page 1-53.The airbag readiness light
ashes for a few seconds
when the engine is started.
If the light does not come
on then, have it xed
immediately.
{CAUTION:
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
in ate in a crash, or they could even in ate
without a crash. To help avoid injury, have
the vehicle serviced right away.
If there is a problem with the airbag system, an airbag
Driver Information Center (DIC) message can also come
on. SeeDIC Warnings and Messages on page 3-56
for more information.
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Charging System Light
This light comes on brie y
when the ignition key is
turned to START, but the
engine is not running, as a
check to show it is working.
If it does not, have the vehicle serviced by your
dealer/retailer.
The light should go out once the engine starts. If it stays
on, or comes on while driving, there could be a problem
with the charging system. A charging system message
in the Driver Information Center (DIC) can also appear.
SeeDIC Warnings and Messages on page 3-56for
more information. This light could indicate that there
are problems with a generator drive belt, or that there
is an electrical problem. Have it checked right away.
If the vehicle must be driven a short distance with the
light on, turn off accessories, such as the radio and air
conditioner.
Brake System Warning Light
Your vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop you. For good braking, though,
you need both parts working well.
If the warning light comes on and the parking brake
is not applied, there is a brake problem. Have your
brake system inspected right away.
This light should come on
brie y when you turn the
ignition key to ON/RUN.
If it does not come on then, have it xed so it will be
ready to warn you if there is a problem.
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When the ignition is on, the brake system warning
light will also come on when you set your parking brake.
The light will stay on if your parking brake does not
release fully. If it stays on after your parking brake is
fully released, it means you have a brake problem.
If the light comes on while you are driving, a chime will
sound and you should pull off the road and stop carefully.
You may notice that the pedal is harder to push. Or, the
pedal may go closer to the oor. It may take longer to
stop. If the light is still on, have the vehicle towed for
service. SeeTowing Your Vehicle on page 4-26.
{CAUTION:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
Antilock Brake System (ABS)
Warning Light
For vehicles with
the Antilock Brake
System (ABS), this light
comes on brie y when
the engine is started.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the ABS light stays on, turn the ignition off. If the
light comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light stays on, or
comes on again while driving, the vehicle needs service.
If the regular brake system warning light is not on, the
vehicle still has brakes, but not antilock brakes. If the
regular brake system warning light is also on, the vehicle
does not have antilock brakes and there is a problem with
the regular brakes. SeeBrake System Warning Light on
page 3-35.
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-56for
all brake related DIC messages.
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Traction Control System (TCS)
Warning Light
Your vehicle has
a Traction Control
System (TCS)
warning light.
If this warning light comes on and stays on, there may
be a problem with the TCS and, if your vehicle has
this feature, the StabiliTrak
®system.
The TCS warning light will come on brie y when the
engine is started. If it does not come on then, have it xed
so it will be ready to warn you if there is a problem. This
light will also come on when the traction control button is
pressed disabling the system.
If the TCS warning light stays on or comes 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 then back on. If the light still stays on or comes back
on again while you are driving, your vehicle needs
service. Have the traction control system and, if your
vehicle has this feature, the StabiliTrak
®systeminspected as soon as possible. SeeTraction Control
System (TCS) on page 4-7andStabiliTrak
®System on
page 4-6for more information.
Enhanced Traction System
Warning Light
For vehicles with the
Enhanced Traction
System (ETS), this light
may come on for the
following reasons:
If the traction control button located on the instrument
panel is pressed, turning the system off. This light will
come on and stay on. To turn the system back on,
press the button again and the warning light should
turn off. SeeEnhanced Traction System (ETS) on
page 4-8.
If the system is affected by an engine-related
problem, the system will turn off and the warning
light will come on.
If the light comes on and stays on for an extended
period of time when the system is turned on, the vehicle
needs service.
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Engine Coolant Temperature
Warning Light
This light comes on brie y
while starting the vehicle.
If it does not, have the vehicle serviced by the
dealer/retailer. If the system is working normally the
indicator light goes off.
Notice:Driving with the engine coolant temperature
warning light on could cause the vehicle to overheat.
SeeEngine Overheating on page 5-31. The vehicle’s
engine could be damaged, and it might not be
covered by the vehicle warranty. Never drive with
the engine coolant temperature warning light on.
The engine coolant temperature warning light comes on
when the engine has overheated.
If this happens pull over and turn off the engine as soon
as possible. SeeEngine Overheating on page 5-31
for more information.
Engine Coolant Temperature Gage
The vehicle has a gage
that shows the engine
coolant temperature.
If the gage pointer moves towards the H, the engine is
too hot.
This reading indicates the same thing as the warning
light. It means that the engine coolant has overheated.
If the vehicle has been operating under normal driving
conditions, pull off the road, stop the vehicle, and turn off
the engine as soon as possible. SeeEngine Overheating
on page 5-31.
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Low Coolant Warning Light
If your vehicle has this
light, it comes on brie y
when you turn your ignition
on as a bulb check only.
Tire Pressure Light
For vehicles with a tire
pressure light, this light
comes on brie y when
the engine is started and
provides information about
tire pressures and the
Tire Pressure Monitoring
System.
When the Light is On Steady
This indicates that one or more of the tires is signi cantly
underin ated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDIC
Warnings and Messages on page 3-56for more
information. Stop and check the tires as soon as it
is safe to do so. If a tire is underin ated, in ate to the
proper pressure. SeeTires on page 5-54for more
information.
When the Light Flashes First and Then is
On Steady
This indicates that there could be a problem with the
Tire Pressure Monitor System. The light ashes for about
a minute and stays on steady for the remainder of the
ignition cycle. This sequence repeats with every ignition
cycle. SeeTire Pressure Monitor System on page 5-62
for more information.
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