2017 Lexus IS200t cooling

3384-5. Using the driving support systems
IS200t_EE(OM53D77E)
Normal mode
Provides an optimal balance of fuel economy, quietness, and dynamic perfor-
mance. Suitable for city driving.
Press the switch to change the driving mode to normal mode when Eco drive mode or
sport mode is selected.
Eco drive mode
Helps the driver accelerate in an eco-friendly manner and improve fuel econ-
omy through moderate throttle characteristics and by controlling the opera-
tion of the air conditioning system (heating/cooling).
When not in Eco drive mode, if the driving mode select switch is turned to the left, the
Eco drive mode indicator will come on.
Sport mode
Controls the transmission and engine to provide quick, powerful acceleration.
This mode also changes the steering feel, making it suitable for when agile
driving response is desired, such as when driving on roads with many curves.
When not in sport mode, if the driving mode se lect switch is turned to the right, the
“SPORT” indicator will comes on.
Driving mode select switch
The driving modes can be select ed to suit driving condition.
Except
F SPORT modelsF SPORT
models
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3394-5. Using the driving support systems
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Driving
IS200t_EE(OM53D77E)
■Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air condi-
tioning system to enhance fuel efficiency ( P. 450). To improve air conditioning perfor-
mance, adjust the fan speed or turn off Eco drive mode.
■Sport mode automatic deactivation
Sport mode is automatically deactivated if the engine switch is turned off after driving in
sport mode.
■Driving mode pop-up display (vehicles with a 10.3-inch display)
When the driving mode is changed, the selected dr iving mode will be temporarily dis-
played on the side display. ( P. 448)

4546-2. Using the air conditioning system
IS200t_EE(OM53D77E)
With a Lexus Display AudioAdjust the left-hand side temperature setting
Adjust the fan speed setting
Select to set auto mode on/off
Select to change the fan speed setting during the automatic mode opera-
tion. ( P. 459)
Select to set cooling and dehu midification function on/off
Adjust the temperature for driver an d passenger seats separately (“DUAL”
mode) ( P. 457)
Display the option control screen ( P. 456)
Select the air flow mode
Adjust the right-hand side temperature setting
Adjust the temperature setting
Air conditioning control screen (if equipped)
(With “DUAL” mode) (Without “DUAL” mode)
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4556-2. Using the air conditioning system
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Interior features
IS200t_EE(OM53D77E)
With a 10.3-inch displayAdjust the left-hand side temperature setting
Adjust the fan speed setting
Select the air flow mode
Adjust the right-hand side temperature setting
Display the option control screen ( P. 456)
Select to set automatic mode on/off
Select to set cooling and dehu midification function on/off
Adjust the temperature for driver an d passenger seats separately (“DUAL”
mode) ( P. 457)
Select to change the fan speed setting during the automatic mode opera-
tion. ( P. 459)
Adjust the temperature setting
(With “DUAL” mode)
(Without “DUAL” mode)
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4566-2. Using the air conditioning system
IS200t_EE(OM53D77E)
■Option control screen
Select on the air conditioning control screen to display the option
control screen. The functions can be switched on and off.
■Side display operation screen (Vehicles with a 10.3-inch display)Select the air flow mode
Adjust the left-hand side temperature setting
Adjust the fan speed setting
Adjust the right-hand side temperature setting
Select to set auto mode on/off
Select to set cooling and dehu midification function on/off
Adjust the temperature for driver an d passenger seats separately (“DUAL”
mode) ( P. 457)
Adjust the temperature setting
With a Lexus Display AudioWith a 10.3-inch display
Removing pollen from the air (Pollen removal mode) ( P. 458)
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With “DUAL” modeWithout “DUAL” mode
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4616-2. Using the air conditioning system
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Interior features
IS200t_EE(OM53D77E)
■Registering air conditioning settings to electronic keys (vehicles with driving position
memory)
●Unlocking the vehicle using an electronic ke y and turning the engine switch to IGNI-
TION ON mode will recall that key's registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat-
ically be registered to the electronic key that was used to unlock the vehicle.
●The system may not operate correctly if more than one electronic key is in the vicinity or
if the smart entry & start system is used to unlock a passenger door.
●The doors that can recall the air conditioni ng setting when unlocked using the smart
entry & start system can be changed.* For details, contact any authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
*: The doors that can recall the driving position memory are changed at the same time.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately
after is pressed or “AUTO” is selected.
■Fogging up of the windows
The windows will easily fog up when the hu midity in the vehicle is high. Turning
(“A/C”) on will dehumidify the air from the ou tlets and defog the windshield effectively.
●If you turn (“A/C”) off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu-
lated air mode button to the recirculated air mode. This is effective in preventing out-
side air from entering the vehicle interior . During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automati cally switch depending on the tempera-
ture setting or the inside temperature.
■Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling capac-
ity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode
■When the outside temperature falls to nearly 0 C (32 F)
The dehumidification function may not operate even when is pressed or “A/C” is
selected.

4967-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
WARNING
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 and 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 corro-
sive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted sur-
faces. If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 504)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your 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.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high.
If the reservoir needs frequent refillin g, it may indicate a serious problem.

4997-3. Do-it-yourself maintenance
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Maintenance and care
IS200t_EE(OM53D77E)For right-hand drive vehicles:
The battery and the fuse box in front of the battery are located on the opposite side of the
engine compartment.
Engine compartment
Fuse boxes (
P. 530)
Battery ( P. 505)
Intercooler
Engine oil level dipstick ( P. 500)
Engine oil filler cap ( P. 501)
Engine coolant reservoir ( P. 503) Washer fluid tank (
P. 508)
Electric cooling fans
Condenser ( P. 504)
Intercooler radiator ( P. 504)
Radiator ( P. 504)
Intercooler coolant reservoir ( P. 503)1
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