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2-1. Driving procedures
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
NOTICE
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually press the brak e pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds.
●The vehicle will behave abnormally.
Replace a flat tire with a new one. ( →P. 5 3 4 )
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle.
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following.
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, automatic
transmission, transfer (4WD models), differentials, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible) and the function of all joints, bearings, etc.
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2-5. Driving information
2
When driving
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific gravity of
battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■ Before driving the vehicle
Perform the following according to the driving conditions.
● Do not try to forcibly open a window or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumu lated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumul ated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.
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4-2. Maintenance
4
Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■Allow inspection and repairs to be performed by a Lexus dealer
●Lexus technicians are well-trained specialists and are kept up to date with the
latest service information. They are well informed about the operations of all
systems on your vehicle.
●Keep a copy of the repair order. It proves that the maintenance that has been
performed is under warranty coverage. If any problem should arise while your
vehicle is under warranty, your Lexus de aler will promptly take care of it.
CAUTION
■If your vehicle is not properly maintained
It could result in serious damage to the vehicle and possible serious injury or death.
■Hazardous materials
●Engine exhaust, some of its constituents, and a wide variety of automobile com-
ponents contain or emit chemicals known to the State of California to cause can-
cer and birth defects and other reproductive harm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by compo-
nent wear contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Avoid exposure and wash
any affected area immediately.
●12 volt battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands after
handling. ( →P. 434)
●Used engine oil contains chemicals that have been shown to cause cancer in lab-
oratory animals. Avoid prolonged and repeated contact. Always protect your
skin by washing thorough ly with soap and water.
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4-2. Maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
General maintenance
Engine compartment
ItemsCheck points
Brake fluid• At the correct level? (→P. 4 3 3 )
Engine coolant• At the correct level? ( →P. 4 3 1 )
Engine oil• At the correct level? ( →P. 4 2 7 )
Exhaust system• No fumes or strange sounds?
Radiator/condenser/hoses• Not blocked with foreign matter?
(→P. 4 3 2 )
Wa s h e r f l u i d• At the correct level? ( →P. 4 3 7 )
12 volt battery• Maintenance-free (→ P. 4 3 4 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide/Owner’s
Manual Supplement”. It is recomme nded that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.
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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
ItemsPa r t s a n d t o o l s
Engine oil level (→P. 4 2 7 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 4 6 0 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 4 8 5 )• Phillips-head screwdriver
Radiator and condenser (→P. 4 3 2 )
Tire inflation pressure ( →P. 4 4 8 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 4 3 7 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel
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4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator , exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easi ly, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the 12 volt battery.
Fuel and 12 volt battery fumes are flammable.
●Be extremely cautious when working on the 12 volt battery. It contains poisonous
and corrosive sulfuric acid.
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. ( →P. 4 3 2 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air. Also a backfire could cause a fire in the engine compartment.
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4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Engine compartment
GS460
Engine oil level dipstick(→P. 4 2 7 )
Engine oil filler cap (→P. 4 2 8 )
Brake fluid reservoir (→P. 433)
Fuse box ( →P. 460)
Washer fluid tank (→P. 4 3 7 )Engine coolant reservoir
(→P. 4 3 1 )
Electric cooling fans
Condenser ( →P. 4 3 2 )
Radiator ( →P. 4 3 2 )
Fuse box ( →P. 460)
12 volt battery ( →P. 4 3 4 )
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4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
GS350
Engine oil level dipstick(→P. 4 2 7 )
Engine oil filler cap (→P. 4 2 8 )
Brake fluid reservoir (→P. 433)
Fuse box ( →P. 460)
Washer fluid tank (→P. 4 3 7 )Engine coolant reservoir
(→P. 4 3 1 )
Electric cooling fans
Condenser ( →P. 4 3 2 )
Radiator ( →P. 4 3 2 )
Fuse box ( →P. 460)
12 volt battery ( →P. 4 3 4 )
GS_U_G.book Page 425 Monday, April 27, 2009 10:50 AM