coolant Lexus IS220d 2011 Owner's Manual

171
2
When driving
IS250/220d/200d_EE
2-2. Instrument cluster
Gauges and meters
The units used on the speedometer, tachometer and fuel gauge display
may differ depending on the model/type.
The following gauges, meters and display illuminate when the
“ENGINE START STOP” switch is in IGNITION ON mode.
Speedometer
Displays the vehicle speed.
Multi-information display
P. 181
Tachometer
Displays the engine speed in revolutions per minute.
Tacho indicator
When the set engine speed is reached, this ring-shaped indicator
comes on in yellow. The indicator comes on in red when the engine
speed reaches a dangerous range.
Engine coolant temperature gauge
Displays the engine coolant temperature.

239
2-5. Driving information
2
When driving
IS250/220d/200d_EE
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 appropriate to the prevailing outside
temperatures.
• 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 specified size and the same 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 frozen. 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 accumulated on the air inlet
vents in front of the windshield.
Remove any ice that has accumulated on the vehicle chas-
sis.

249
2-5. Driving information
2
When driving
IS250/220d/200d_EEImportant points regarding turning
The wheels of the trailer will travel closer to the inside of the
curve than the wheels of the vehicle. To make allowance for this,
take the turns wider than you would normally.
Important points regarding stability
Vehicle movement resulting from uneven road surfaces and
strong crosswinds will affect handling. The vehicle may also be
rocked by passing buses or large trucks. Frequently check
behind when moving alongside such vehicles. As soon as such
vehicle movement occurs, immediately start to decelerate
smoothly by slowly applying the brakes. Always steer the vehi-
cle straight ahead while braking.
Passing other vehicles
Consider the total combined length of your vehicle and trailer
and ensure that the vehicle-to-vehicle distance is sufficient
before executing lane changes.
Transmission information
Refrain from driving in 6 (manual transmission) or 4 range in S
mode (automatic transmission) to maintain the effectiveness of
the engine brake and the charge performance of electrical com-
ponents.
If the engine overheats...
Towing a loaded trailer up a long steep incline in temperatures
exceeding 30C (85F) may result in the engine overheating. If
the engine coolant temperature gauge indicates that the engine is
overheating, turn the air conditioning off immediately, leave the
road and stop the vehicle in a safe place. (P. 525)
When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle
and trailer. Firmly set the parking brake and shift the shift lever
to P for automatic transmissions, and 1 or R for manual trans-
missions.

397
4-2. Maintenance
4
Maintenance and care
IS250/220d/200d_EE
Where to go for service?
In order to maintain your vehicle in the highest possible condition, Lexus
recommends that all repairs and service operations be carried out by autho-
rized Lexus dealers or repairers or other duly qualified and equipped profes-
sionals. For repairs and services covered by your warranty, please visit an
authorized Lexus dealer or repairer, who will use genuine Lexus parts in
repairing any difficulties you may encounter. There can also be advantages
in utilizing authorized Lexus dealers or repairers for non-warranty repairs
and services, as members of the Lexus network will be able to expertly
assist you with any difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional service department will perform all of the scheduled maintenance
on your vehicle - reliably and economically due to their experience with
Lexus vehicles.
Does your vehicle need repair?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (However, water dripping from the air
conditioning after use is normal.)
Change in exhaust sound (This may indicate a dangerous carbon monox-
ide leak. Drive with the windows open and have the exhaust system
checked immediately.)
Flat-looking tires, excessive tire squeal when cornering, uneven tire
wear
Vehicle pulls to one side when driving straight on a level road
Strange noises related to suspension movement
Loss of brake effectiveness, spongy feeling brake pedal, pedal almost
touches the floor, vehicle pulls to one side when braking
Engine coolant temperature continually higher than normal
If you notice any of these clues, take your vehicle to any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional, as
soon as possible. Your vehicle may need adjustment or repair.

398
IS250/220d/200d_EE
4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct pro-
cedures as given in these sections.
ItemsParts and tools
Battery condition (P. 415)
•Warm water
• Baking soda
• Grease
• Conventional wrench
(for terminal clamp bolts)
Engine coolant level (P. 413)
• “Toyota Super Long Life Cool-
ant” or similar high-quality eth-
ylene glycol-based non-silicate,
non-amine, non-nitrite and non-
borate coolant with long-life
hybrid organic acid technology.
“Toyota Super Long Life Cool-
ant” is pre-mixed with 50%
coolant and 50% deionized
water.
• Funnel (used only for adding
coolant)
Engine oil levelP. 409)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel
(used only for adding oil)
Fuses (P. 438)• Fuse with same amperage rating
as original
Radiator, condenser and inter-
cooler

400
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, 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 driving as they may be hot. Oil and other fluids may also be hot.
Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel or the battery.
Fuel and battery fumes are flammable.
Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience discomfort, see a doctor.
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. 415)
CAUTION
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in the eyes.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
Engine compartment
IS250
*: For right-hand drive vehicles:
They are located on the opposite side of the engine compartment.
Battery (P. 415)
Engine oil level dipstick
(P. 409)
Engine oil filler cap
(P. 410)
Fuse boxes (P. 438)
Washer fluid tank(P. 420)Electric cooling fans
Condenser (P. 415)
Radiator (P. 415)
Engine coolant reservoir
(P. 413)
*
*

406
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
IS220d and IS200d
*: For right-hand drive vehicles:
They are located on the opposite side of the engine compartment.
Battery (P. 415)
Engine oil level dipstick
(P. 409)
Engine oil filler cap
(P. 410)
Fuse boxes (P. 438)
Washer fluid tank(P. 420)Electric cooling fans
Condenser (P. 415)
Intercooler (P. 415)
Radiator (P. 415)
Engine coolant reservoir
(P. 413)
*
*

413
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
Engine coolant
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir when the engine is cold.
IS250
Reservoir cap
“FULL”
“LOW”
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.
IS220d and IS200d
Reservoir cap
“FULL”
“LOW”
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.

414
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high-quality eth-
ylene glycol-based non-silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Enabled: -35C [-31F])
For more details about engine coolant, contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
CAUTION
When the engine is hot
Do not remove the radiator cap (IS250), or the coolant reservoir cap (IS220d
and IS200d).
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
When adding engine coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.