engine Lexus ES300h 2014 Warranty and Services Guide / Owner's Manual (OM33A60U)

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4-5. Using the driving support systems
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheat-
ing when there is frequent steering input over an extended period of time. The steer-
ing wheel may feel heavy as a result. Should this occur, refrain from excessive
steering input or stop the vehicle and turn the engine off. The effec-
tiveness will improve after a short while.
CAUTION
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operating may exceed that of normal condi-
tions
The ABS is not designed to shorten the ve hicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you, especially in the following situa-
tions:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery
road surfaces, even if the TRAC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause
an accident. Exercise particular care when the indicator light flashes.
■When the TRAC/VSC systems are turned off
Be especially careful and drive at a spee d appropriate to the road conditions. As
these are the systems to ensure vehicle stability and driving force, do not turn the
TRAC/VSC systems off unless necessary.

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4-6. Driving tips
Control your speed and keep at a constant speed. Also, before stopping
at a toll booth or similar, allow plenty of time to release the accelerator and
gently apply the brakes. A greater am ount of electrical energy can be
retained when slowing down.
Use the air conditioning only when ne cessary. Doing so can help control
excessive gasoline consumption.
In summer: In high temperatures, use th e recirculated air mode. Doing so
will help to reduce the burden on th e air conditioner and reduce fuel con-
sumption as well.
In winter: Because the gasoline engine will not automatically cut out until
the gasoline engine and the interior of the vehicle are warm, it will con-
sume fuel. Also, fuel consumption can be improved by avoiding overuse of
the heater.
Make sure to check the tire inflati on pressure frequently. Improper tire
inflation pressure can cause poor fuel consumption.
Also, as snow tires can cause large am ounts of friction, their use on dry
roads can lead to poor fuel consumptio n. Use a tire that is appropriate for
the season.
Carrying heavy luggage can lead to poor fuel consumption. Avoid carry-
ing unnecessary luggage. Installing a la rge roof rack can also cause poor
fuel consumption.
Highway driving
Air conditioning
Checking tire inflation pressure
Luggage

ES350_300h_OM_OM33A60U_(U)
3294-6. Driving tips
4
Driving
Since the gasoline engine starts up and cuts out automatically when cold,
warming up the engine is unnecessary. Moreover, frequently driving short
distances will cause the engine to repeatedly warm up, which can lead to
poor fuel consumption.
Warming up before driving

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4-6. Driving tips
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures. • Engine oil
• Engine coolant
• Power control unit coolant (hybrid vehicles)
• Washer fluid
●Have a service technician inspect th e condition of the 12-volt battery.
●Have the vehicle fitted with four sno w tires or purchase a set of tire
chains for the front tires.
Ensure that all tires are the specified size and brand, and that chains match the
size of the tires.
Carry out the necessary preparati ons and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropriate
to the prevailing weather conditions.
Preparation for winter

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ES350_300h_OM_OM33A60U_(U)
4-6. Driving tips
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used,
or 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting opera-
tions that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
●Do not use LDA (Lane Departure Alert) system.

3405-1. Lexus Display Audio system
ES350_300h_OM_OM33A60U_(U)
When the “START STOP ENGINE”
<“POWER”> switch is turned to
ACCESSORY or IGNITION ON
mode, the initial screen will
be displayed for a few seconds as
the system starts up.
Images shown on the initial screen can
be changed to image1 or image2.
( P. 3 4 6 )
Initial screen

3425-1. Lexus Display Audio system
ES350_300h_OM_OM33A60U_(U)
■When using the screen
●Under extremely cold conditions, the Lexus Display Audio controller may react
slowly.
●If the screen is cold, the display may be dark, or the system may seem to be operat-
ing slightly slower than normal.
●The screen may seem dark and hard to see when viewed through sunglasses.
Change your angle of viewing, adjust th e display on the “Display Settings” screen
(  P. 343) or remove your sunglasses.
CAUTION
■Using the Lexus Display Audio controller
●Do not allow fingers, fingernails or hair to become caught in the Lexus Display
Audio controller as this may cause an injury.
●Be careful when touching the Lexus Display Audio controller in extreme temper-
atures as it may become very hot or cold due to the temperature inside the vehi-
cle.
NOTICE
■To prevent the Lexus Display Audio controller malfunction
●Do not allow the Lexus Display Audio controller to come into contact with food,
liquid, stickers or lit cigarettes as doing so may cause it to change color, emit a
strange odor or stop functioning.
●Do not subject the Lexus Display Audio controller to excessive pressure or
strong impact as the controller may bend or break off.
●Do not allow coins, contact lenses or other such items to become caught in the
Lexus Display Audio controller as this may cause it to stop functioning.
●Items of clothing may rip if they beco me caught on the Lexus Display Audio con-
troller.
●If your hand or any object is on the Lexus Display Audio controller when the
“START STOP ENGINE” <“POWER”> swit ch is turned to ACCESSORY mode,
the Lexus Display Audio controller may not operate properly.

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5-1. Lexus Display Audio system
5
Interior features
Display settings
Turns off screen
The screen is turned off. To turn it on,
press the “AUDIO” or “MENU” but-
ton on the Lexus Display Audio con-
troller.
Changes to day mode
(P. 343)
Adjusts screen contrast/bright-
ness ( P. 344)
Adjusts screen contrast/bright-
ness of rear view monitor camera
( P. 3 4 4 )
When the headlights are turned on, the screen dims.
However, the screen can be switched to day mode by selecting “Day
Mode”.
If the screen is set in day mode with the headlight switch turned on, this condition
is memorized even with the “START STOP ENGINE” <“POWER”> switch is
turned off.
You can adjust the contrast and brig htness of the screen and also turn
the display off.
To display the “Displ ay Settings” screen, press the “MENU” button on
the Lexus Display Audio controller and then select “Display” on the
“Menu” screen.
1
2
3
4
Changing between day mode and night mode

3465-1. Lexus Display Audio system
ES350_300h_OM_OM33A60U_(U)
This screen is used for various settings.Display the “Setup” screen. ( P. 345)
Select “General” on the “Setup” screen.
Select language ( P. 3 4 7 )
Beep on/off
Select button color
Customize Startup Image
The initial screen displayed when the “START STOP ENGINE” <“POWER”>
switch is turned to ACCESSORY or IGNITION ON mode can be
changed to image 1, or image 2 which displays the vehicle screen.
Animation on/off
The animation effect for audio source se lection screen, screen transitions, etc.
can be set to “On” or “Off”.
Personal data can be deleted. ( P. 3 4 7 )
When you complete settings, select “Save”.
General settings
1
2
Pa g e 1Pa g e 2
1
2
3
4
5
6
3

ES350_300h_OM_OM33A60U_(U)
3615-2. Using the air conditioning system and defogger
5
Interior features
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the “START STOP
ENGINE” <“POWER”> switch to IGNITION ON mode will recall that key’s
registered air conditioning settings.
●When the “START STOP ENGINE” <“POWER”> is turned off, the current air con-
ditioning settings will automatically be re gistered 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 access system with push-button start is used to unlock a passenger
door.
Settings for the electronic key and th e corresponding door can be changed.
Contact your Lexus dealer.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow immedi-
ately after is pressed.
■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high. Selecting on will dehumidify the air from the outlets and defog the windshield effec-
tively.
●If you turn off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Windshield fog detection function (if equipped)
When automatic mode is set, the humidity sensor ( P. 364) detects fog on the
windshield and controls the air conditioning system to prevent fog.
■Outside/recirculated air mode
●When driving on dusty roads such as tunn els or in heavy traffic, set the outside/
recirculated air mode button to the recirculated air mode. This is effective in pre-
venting outside air from entering the vehicl e interior. During cooling operation, set-
ting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tem-
perature setting or the inside temperature.