warning light BUICK LACROSSE 2009 Owner's Guide

Page 244 of 428

This light, along with the
TRACTION CONTROL
OFF message, will display
briey on the DIC when
TCS is not on.
If there is a problem with the system, the SERVICE
TRACTION SYSTEM message will also come on in the
DIC. When this warning light is on, the system will
not limit wheel spin. Adjust driving accordingly.
To limit wheel spin, especially in slippery road
conditions, TCS should always be left on. But the
system can be turned off if needed. TCS should be
turned off if the vehicle ever gets stuck in sand, mud or
snow and rocking the vehicle is required. SeeRocking
Your Vehicle to Get It Out on page 4-20andIf Your
Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 4-19.
To turn TCS on or off, press the TCS button located
above the radio.When TCS is turned off, the TCS warning light will
come on along with the TRACTION CONTROL OFF
message on the DIC. It will turn off when TCS is turned
back on. If TCS is limiting wheel spin when the TCS
button is pressed, the TCS warning light will come
on and TCS will turn off right away.
Adding non-dealer/non-retailer accessories can affect
the vehicle’s performance. SeeAccessories and
Modifications on page 5-3for more information.
Enhanced Traction System (ETS)
The vehicle may have an Enhanced Traction System
(ETS) that limits wheel spin. This is especially useful in
slippery road conditions. The system operates only if
it senses that one or both of the front wheels are
spinning or beginning to lose traction. When this
happens, the system reduces engine power and may
also upshift the transmission to limit wheel spin.
The system may be heard or felt while it is working, but
this is normal.
The TRACTION CONTROL ACTIVE message on the
Driver Information Center (DIC) will be displayed
when the system is limiting wheel spin.
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If cruise control is being used when ETS begins to limit
wheel spin, the cruise control automatically disengages.
The cruise control can be reengaged when road
conditions allow. SeeCruise Control on page 3-10for
more information.
ETS operates in all transmission shift lever positions. But
the system can upshift the transmission only as high as
the chosen shift lever position, so use the lower gears
only when necessary. SeeAutomatic Transmission
Operation on page 2-26for more information.
This warning light, along
with the TRACTION
CONTROL OFF message,
will display briey on the
DIC when ETS is not on.
If there is a problem with the system, the SERVICE
TRACTION SYSTEM message will also come on in the
DIC. When this warning light is on, the system will
not limit wheel spin. Adjust your driving accordingly.To limit wheel spin, especially in slippery road
conditions, ETS should always be left on. But the
system can be turned off if needed. ETS should be
turned off if the vehicle ever gets stuck in sand, mud or
snow and rocking the vehicle is required. SeeIf Your
Vehicle is Stuck in Sand, Mud, Ice, or Snow on
page 4-19.
To turn ETS on or off,
press the Traction Control
button located above
the radio.
When ETS is turned off, the ETS warning light will come
on along with the TRACTION CONTROL OFF message
on the DIC. It will turn off when ETS is turned back on. If
ETS is limiting wheel spin when the traction control button
is pressed, the ETS warning light comes on and ETS will
turn off right away.
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Page 249 of 428

While driving on a surface with reduced traction, try
your best to avoid sudden steering, acceleration, or
braking, including reducing vehicle speed by shifting
to a lower gear. Any sudden changes could cause the
tires to slide. You may not realize the surface is slippery
until the vehicle is skidding. Learn to recognize warning
clues — such as enough water, ice, or packed snow on
the road to make a mirrored surface — and slow down
when you have any doubt.
Remember: Any Antilock Brake System (ABS) helps
avoid only the braking skid.
Driving at Night
Night driving is more dangerous than day driving
because some drivers are likely to be impaired — by
alcohol or drugs, with night vision problems, or by
fatigue.Night driving tips include:
Drive defensively.
Do not drink and drive.
Reduce headlamp glare by adjusting the inside
rearview mirror.
Slow down and keep more space between you and
other vehicles because headlamps can only light up
so much road ahead.
Watch for animals.
When tired, pull off the road.
Do not wear sunglasses.
Avoid staring directly into approaching headlamps.
Keep the windshield and all glass on your vehicle
clean — inside and out.
Keep your eyes moving, especially during turns or
curves.
No one can see as well at night as in the daytime. But,
as we get older, these differences increase. A
50-year-old driver might need at least twice as much
light to see the same thing at night as a 20-year-old.
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Page 250 of 428

Driving in Rain and on Wet Roads
Rain and wet roads can reduce vehicle traction
and affect your ability to stop and accelerate. Always
drive slower in these types of driving conditions
and avoid driving through large puddles and
deep-standing or owing water.
{CAUTION:
Wet brakes can cause crashes. They might not
work as well in a quick stop and could cause
pulling to one side. You could lose control of the
vehicle.
After driving through a large puddle of water or a
car/vehicle wash, lightly apply the brake pedal until
the brakes work normally.
Flowing or rushing water creates strong forces.
Driving through owing water could cause your
vehicle to be carried away. If this happens, you
and other vehicle occupants could drown. Do not
ignore police warnings and be very cautious about
trying to drive through owing water.
Hydroplaning
Hydroplaning is dangerous. Water can build up under
your vehicle’s tires so they actually ride on the
water. This can happen if the road is wet enough and
you are going fast enough. When your vehicle is
hydroplaning, it has little or no contact with the road.
There is no hard and fast rule about hydroplaning. The
best advice is to slow down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet weather driving tips
include:
Allow extra following distance.
Pass with caution.
Keep windshield wiping equipment in good shape.
Keep the windshield washer uid reservoir lled.
Have good tires with proper tread depth. SeeTires
on page 5-54.
Turn off cruise control.
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Page 279 of 428

{CAUTION:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. This spray
can happen if the tank is nearly full, and is more
likely in hot weather. Open the fuel cap slowly and
wait for any hiss noise to stop. Then unscrew the
cap all the way.
Be careful not to spill fuel. Do not top off or overll the
tank and wait a few seconds after you have nished
pumping before removing the nozzle. Clean fuel from
painted surfaces as soon as possible. SeeWashing
Your Vehicle on page 5-93.
When replacing the fuel cap, turn it clockwise until it
clicks. Make sure the cap is fully installed. The diagnostic
system can determine if the fuel cap has been left off or
improperly installed. This would allow fuel to evaporate
into the atmosphere. SeeMalfunction Indicator Lamp on
page 3-40.The vehicle may also have a check gas cap warning
light, which displays on the instrument panel cluster
if the fuel cap is not properly installed. SeeCheck
Gas Cap Light on page 3-47for more information.
If the vehicle has a Driver Information Center (DIC),
the CHECK GAS CAP message displays if the fuel
cap is not properly installed. SeeDIC Warnings
and Messages on page 3-56for more information.
{CAUTION:
If a re starts while you are refueling, do not
remove the nozzle. Shut off the ow of fuel by
shutting off the pump or by notifying the station
attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer/retailer can get one
for you. If you get the wrong type, it may not t
properly. This may cause the malfunction indicator
lamp to light and may damage the fuel tank and
emissions system. SeeMalfunction Indicator Lamp
on page 3-40.
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Page 288 of 428

Engine Oil Additives / Engine Oil
Flushes
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet GM Standard
GM6094M are all that is needed for good performance
and engine protection.
Engine oil system ushes are not recommended and
could cause engine damage not covered by the vehicle
warranty.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that indicates
when to change the engine oil and lter. This is based
on engine revolutions and engine temperature, and not
on mileage. Based on driving conditions, the mileage at
which an oil change is indicated can vary considerably.
For the oil life system to work properly, the system must
be reset every time the oil is changed.When the system has calculated that oil life has been
diminished, it indicates that an oil change is necessary.
A change engine oil light or, if the vehicle has the Driver
Information Center (DIC), a CHANGE OIL SOON
message comes on. SeeChange Engine Oil Light on
page 3-43orDIC Warnings and Messages on page 3-56.
Change the oil as soon as possible within the next
600 miles (1 000 km). It is possible that, if driving under
the best conditions, the oil life system might not indicate
that an oil change is necessary for over a year. However,
the engine oil and lter must be changed at least once
a year and at this time the system must be reset.
Your dealer/retailer has trained service people who
will perform this work using genuine parts and reset
the system. It is also important to check the oil regularly
and keep it at the proper level.
If the system is ever reset accidentally, the oil must be
changed at 3,000 miles (5 000 km) since the last oil
change. Remember to reset the oil life system whenever
the oil is changed.
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How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to change
the engine oil and lter based on vehicle use. Whenever
the oil is changed, reset the system so it can calculate
when the next oil change is required. If a situation occurs
where the oil is changed prior to a change engine oil light
or CHANGE OIL SOON message being turned on, reset
the system.
After changing the engine oil, reset the system:
Vehicles with Driver Information Center (DIC)
1. Press the option button on the DIC until
ENGINE OIL MONITOR appears on the
DIC screen.
2. Press the set/reset button to reset the system.
The next screen indicates that the CHANGE
OIL SOON message has been reset.
If the vehicle has the uplevel DIC, when the
gages button is pressed and the OIL LIFE
REMAINING mode appears, it should read
100 percent OIL LIFE REMAINING.
3. Turn the key to LOCK/OFF.
Vehicles without Driver Information Center (DIC)
1. With the engine off, turn the ignition key to
ON/RUN.
2. Fully press and release the accelerator pedal
slowly three times within ve seconds.
3. Turn the key to LOCK/OFF, then start the
vehicle.
If the light or message comes back on when the vehicle
is started, the oil life system has not reset. Repeat
the procedure.
What to Do with Used Oil
Used engine oil contains certain elements that can be
unhealthy for your skin and could even cause cancer.
Do not let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good hand
cleaner. Wash or properly dispose of clothing or rags
containing used engine oil. See the manufacturer’s
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from the
lter before disposal. Never dispose of oil by putting it
in the trash, pouring it on the ground, into sewers, or into
streams or bodies of water. Recycle it by taking it to a
place that collects used oil.
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Page 301 of 428

Radiator Pressure Cap
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
The radiator pressure cap is located in the front of the
engine compartment on the passenger’s side of the
vehicle. SeeEngine Compartment Overview on
page 5-12for more information on location.
Pressure Cap
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
SeeEngine Compartment Overview on page 5-12for
more information on location.
Engine Overheating
The vehicle has several indicators to warn of engine
overheating.
There is a coolant temperature gage and a warning
light on the instrument panel cluster that indicate an
overheated engine condition. SeeEngine Coolant
Temperature Gage on page 3-38andEngine Coolant
Temperature Warning Light on page 3-38for more
information.
In addition, if your vehicle is equipped with a Driver
Information Center (DIC), you will nd an ENGINE
COOLANT HOT and a REDUCED POWER STOP
WHEN SAFE message displayed on the DIC.
SeeDIC Warnings and Messages on page 3-56
for more information.
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Page 304 of 428

Overheated Engine Protection
Operating Mode
This emergency operating mode allows your vehicle
to be driven to a safe place in an emergency situation.
If an overheated engine condition exists, an overheat
protection mode which alternates ring groups of
cylinders helps prevent engine damage. In this mode,
you will notice a signicant loss in power and engine
performance. The REDUCED POWER STOP WHEN
SAFE message will come on in the Driver Information
Center (DIC), if the vehicle has one, along with the engine
coolant temperature warning light on the instrument
panel, to indicate the vehicle has entered overheated
engine protection operating mode. The temperature
gage will also indicate an overheat condition exists.
Driving extended miles (km) and/or towing a trailer in
the overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine damage,
allow the engine to cool before attempting any
repair. The engine oil will be severely degraded.
Repair the cause of coolant loss, change the oil
and reset the oil life system. SeeEngine Oil
on page 5-15.
Power Steering Fluid
SeeEngine Compartment
Overview on page 5-12for
reservoir location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A uid loss in this system
could indicate a problem. Have the system inspected
and repaired.
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Page 306 of 428

Adding Washer Fluid
When the windshield washer uid is low, a low washer
uid light may appear on the instrument panel cluster.
SeeLow Washer Fluid Warning Light on page 3-45
for more information.
In addition, if your vehicle has a Driver Information
Center (DIC), the LOW WASHER FLUID message will
display when the uid level is low. SeeDIC Warnings
and Messages on page 3-56for more information.
Open the cap with the
washer symbol on it.
Add washer uid until the
tank is full. SeeEngine
Compartment Overview
on page 5-12for reservoir
location.Notice:When using concentrated washer uid, follow
the manufacturer’s instructions for adding water.
Do not mix water with ready-to-use washer uid.
Water can cause the solution to freeze and
damage your washer uid tank and other parts
of the washer system. Also, water does not clean
as well as washer uid.
Fill the washer uid tank only three-quarters
full when it is very cold. This allows for uid
expansion if freezing occurs, which could
damage the tank if it is completely full.
Do not use engine coolant (antifreeze) in your
windshield washer. It can damage the vehicle’s
windshield washer system and paint.
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