light BUICK LACROSSE 2008 Workshop Manual

Speedometer and Odometer
Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour (km/h).
Your vehicle’s odometer works together with the driver
information center. You can set a Trip A and Trip B
odometer. See “Trip Information” underDIC Operation
and Displays on page 3-50.
The odometer mileage can be checked without the
vehicle running. Simply press the odometer/trip switch
on the instrument panel cluster.
If your vehicle ever needs a new odometer installed, the
new one will be set to the correct mileage total of the
old odometer.
Tachometer
Your tachometer displays the engine speed in
revolutions per minute (rpm).
Safety Belt Reminders
Safety Belt Reminder Light
When the engine is started, a chime will come on for
several seconds to remind people to fasten their safety
belts, unless the driver’s safety belt is already buckled.
The safety belt light will
also come on and stay on
for several seconds, then it
will ash for several more.
This chime and light is repeated if the driver remains
unbuckled and the vehicle is in motion. If the driver’s belt
is already buckled, neither the chime nor the light will
come on.
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Passenger Safety Belt Reminder Light
Several seconds after the engine is started, 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 1-62for more information.
The passenger safety belt light, located on the
instrument panel, will come on and stay on for several
seconds and then ash for several more.
This chime and light are
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 cluster, 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
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 1-54.
This light will come on
when you start your
vehicle, and it will ash for
a few seconds. The
light should go out and 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 start the engine. If the light does not
come on then, have it xed immediately. If there is a
problem with the airbag system, an airbag Driver
Information Center (DIC) message may also come on.
SeeDIC Warnings and Messages on page 3-58for
more information.
Passenger Airbag Status Indicator
Your vehicle has the passenger sensing system.
Your instrument panel has a has a passenger airbag
status indicator.
When you start the
vehicle, the passenger
airbag status indicator will
light ON and OFF for
several seconds as
a system check.
If you use remote start to start your vehicle from a
distance, if equipped, you may not see the system
check. Then, after several more seconds, the status
indicator will light either ON or OFF to let you know the
status of the right front passenger’s frontal airbag.
If the word ON is lit on the passenger airbag status
indicator, it means that the right front passenger’s frontal
airbag is enabled (may inate).
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If, after several seconds, both 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/retailer for service.
{CAUTION:
If the airbag readiness light in the instrument
panel cluster ever comes on and stays on, 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’s seat may not have the protection
of the airbag(s). SeeAirbag Readiness Light
on page 3-33for more on this, including
important safety information.
Charging System Light
This light will come on
briey when you turn on
the ignition key, but
the engine is not running,
as a check to show
you it is working.
It should go out once the engine is running. If it stays
on, or comes on while driving, there could be a problem
with the charging system. A charging system Driver
Information Center (DIC) message may also appear.
SeeDIC Warnings and Messages on page 3-58
for 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 you must drive a short distance with the light on,
be certain to turn off all the accessories, such as the
radio and air conditioner.
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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
briey 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.
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 4-27.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed for
service.
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Antilock Brake System
Warning Light
For vehicles with
the Antilock Brake
System (ABS), this light
comes on briey when the
engine is started.
That is normal. 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 the ABS light stays on, turn the ignition off, if the light
comes on when you are 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
still stays on, or comes on again while you are driving,
your vehicle needs service. If the regular brake
system warning light is not on, your vehicle still has
brakes, but not antilock brakes. If the regular brake
system warning light is also on, your vehicle does not
have antilock brakes and there is a problem with
the regular brakes. SeeBrake System Warning Light on
page 3-37.For vehicles with a Driver Information Center (DIC), see
DIC Warnings and Messages on page 3-58for all
brake related DIC messages.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.
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The TCS warning light will come on briey 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
®
system inspected as soon as possible. SeeTraction
Control System (TCS) on page 4-6andStabiliTrak®
System on page 4-8for 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 center
console 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 4-7.
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
The engine coolant
temperature warning light
will come on when the
engine has overheated.
If this happens you should pull over and turn off the
engine as soon as possible. SeeEngine Overheating on
page 5-30for more information.
Notice:Driving with the engine coolant temperature
warning light on could cause your vehicle to
overheat. SeeEngine Overheating on page 5-30.
Your vehicle could be damaged, and it might not be
covered by your warranty. Never drive with the
engine coolant temperature warning light on.
This light will also come on briey when starting your
vehicle. If it does not, have your vehicle serviced.
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 5-30.
3-40

Low Coolant Warning Light
If your vehicle has this
light, it comes on briey
when you turn your ignition
on as a bulb check only.
Tire Pressure Light
Your vehicle has a tire
pressure light.
This light comes on briey when the engine is started
and provides information about tire pressures and
the Tire Pressure Monitoring System.
When the Light is Solid
This indicates that one or more of your tires are
signicantly underinated.
A tire pressure message in the Driver Information
Center (DIC), may accompany the light. SeeDIC
Warnings and Messages on page 3-58for more
information. Stop and check your tires as soon as it is
safe to do so. If underinated, inate to the proper
pressure. SeeTires on page 5-63for more information.
When the Light Flashes First and Then
is Solid
This indicates that there may be a problem with the Tire
Pressure Monitor System. The light ashes for about
a minute and stays on solid for the remainder of
the ignition cycle. This sequence will repeat with every
ignition cycle. SeeTire Pressure Monitor System on
page 5-71for more information.
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Malfunction Indicator Lamp
Check Engine Light
A computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation of
the fuel, ignition, and emission control systems. It makes
sure that emissions are at acceptable levels for the life of
the vehicle, helping to produce a cleaner environment.
The check engine light
comes on to indicate that
there is an OBD II
problem and service is
required.
Malfunctions often are indicated by the system before
any problem is apparent. This can prevent more serious
damage to your vehicle. This system is also designed
to assist your service technician in correctly diagnosing
any malfunction.Notice:If you keep driving your vehicle with this
light on, after a while, the emission controls
might not work as well, your vehicle’s fuel economy
might not be as good, and the engine might not
run as smoothly. This could lead to costly repairs
that might not be covered by your warranty.
Notice:Modications made to the engine,
transmission, exhaust, intake, or fuel system of
your vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle’s emission
controls and can cause this light to come on.
Modications to these systems could lead to costly
repairs not covered by your warranty. This could
also result in a failure to pass a required Emission
Inspection/Maintenance test. SeeAccessories
and Modifications on page 5-3.
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