Page 468 of 692
4686-2. Using the air conditioning system
IS300h_EE(OM53D89E)
■Adjusting the temperature setting
To adjust the temperature setting,
touch and slide your finger up or
down on the sensor.
The temperature setting can also be adjusted by touching on the sensor.
When the temperature setting is
changed, a buzzer sounds.
■Fan speed setting
Press to increase the fan speed.
Press to decrease the fan speed.
■Change the airflow mode
To change the airflow, press .
With a Lexus Display AudioWith a 10.3-inch display
The air outlets used are switched each time the button is pressed.
Air flows to the upper body.
Air flows to the upper body and feet.
Air flows to the feet.
Air flows to the feet and the windshield defogger operates
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Page 470 of 692
4706-2. Using the air conditioning system
IS300h_EE(OM53D89E)
With a Lexus Display Audio
Adjust the left-hand side temperature setting
Adjust the fan speed setting
Select to set auto mode on/off
Select to change the fan speed setti ng during the automatic mode opera-
tion. ( P. 475)
Select to set cooling and de humidification function on/off
Adjust the temperature fo r driver and passenger seats separately (“DUAL”
mode) ( P. 473)
Display the option control screen ( P. 472)
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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Page 472 of 692
4726-2. Using the air conditioning system
IS300h_EE(OM53D89E)
■Option control screen
Select on the air conditioning co ntrol 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)
With a Lexus Display Audio With a 10.3-inch display
Removing pollen from the ai r (Pollen removal mode) (P. 474)1
With “DUAL” modeWithout “DUAL” mode
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 de humidification function on/off
Adjust the temperature fo r driver and passenger seats separately (“DUAL”
mode) ( P. 473)
Adjust the temperature setting
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Page 508 of 692

5087-1. Maintenance and care
IS300h_EE(OM53D89E)
NOTICE
■Cleaning detergents
●Do not use the following liquids, as they may discolor the vehicle interior or cause
streaks or damage to painted surfaces:
• Audio system screen: Organic substances such as benzine or gasoline, alkaline solutions, and alcohol
• Seats: Alkaline solutions, organic substances such as thinner or benzine, and alco-
hol • Other parts: Organic substances such as benzine or gasoline, alkaline or acidic
solutions, dye, and bleach
●Do not use polish wax or polish cleaner. The instrument panel’s or other interior part’s
painted surface may be damaged.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces:
●Remove any dust or dirt from leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park the
vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or containing wax on the upholstery, as they may stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water. Vehicle systems such as the audio system ma y be damaged if water comes into contact
with electrical components such as the au dio system above or under the floor of the
vehicle. Water may also cause the body to rust.
■When cleaning the inside of the windshie ld (vehicles with Lexus Safety System+)
Do not allow glass cleaner to contact the lens. Also, do not touch the lens. ( P. 259)
■Cleaning the inside of the rear window
●Do not use glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke-
warm water to gently wipe the window clean. Wipe the window in strokes running parallel to the heater wires or antenna.
●Be careful not to scratch or dama ge the heater wires or antenna.
Page 579 of 692

5798-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insu fficient or the voltage temporarily drops, the electric power steering system warning light may come on and the warning buzzer
may sound.
■When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure an d adjust to the appropriate level.
●If the warning light does not go out even after several minutes, check that the tire infla- tion pressure is at the specifie d level and carry out initialization.
The warning light may come on again if the above operations are conducted without first
allowing the tire temperature to lower sufficiently.
■The tire pressure warning light ma y come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
■Conditions that the tire pressure warning system may not function properly
P. 529
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
power switch is turned to ON mode, have it checked by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■Warning buzzer
In some cases, the buzzer ma y not be heard due to being in a noisy location or audio
sound.
Page 633 of 692

6338-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
Maintain the engine speed of the second vehicle and start the hybrid system
of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator comes on. If the indicator does not come
on, contact any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer.
Once the hybrid system has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the hybrid system starts, have the vehicle inspected at any authorized
Lexus retailer or Lexus authorized repair er, or any reliable repairer as soon as
possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical componen ts when the vehicle is running at a low
speed for an extended period , such as in heavy traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery w ill discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical appli-
ances. If the vehicle is left for a long time, the 12-volt battery may discharge, and the hybrid system may be unable to start. (The 12-volt battery recharges automatically while
the hybrid system is operating.)
■When recharging or repl acing the 12-volt battery
●In some cases, it may not be possible to unlock the doors using the smart entry & start
system when the 12-volt battery is discharged. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery has
recharged but will start normally after the second attempt. This is not a malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt battery is reconnected, the system will retu rn to the mode it was in before the 12-volt battery was
discharged. Before disconnecting the 12-vol t battery, turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt battery dis- charged, be especially careful when reconnecting the 12-volt battery.
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Page 657 of 692

657
IS300h_EE(OM53D89E)
9
Vehicle specifications
9-2. Customization
When customizing vehicle features, ensure that the vehicle is parked in a safe
place with the shift lever in P and the parking brake set.
■Changing by using the Remote Touch or Lexus Display Audio controller (if
equipped)
Vehicles with a Remote Touch
Press the “MENU” button on the Remote Touch.
Select on the “Menu” screen and select .
Various setting can be changed. Refer to the list of settings that can be
changed for details.
Vehicles with a Lexus Display Audio controller
Press the “MENU” button on the Lexus Display Audio controller.
Select “Setup” on the “MENU” screen and select “Vehicle”.
Various setting can be changed. Refer to the list of settings that can be
changed for details.
■Changing by using the meter control switches
P. 119
Customizable features
Your vehicle includes a variety of electronic features that can be personalized
to suit your preferences. The settings of these features can be changed by
using the meter control switches, the Remote Touch or Lexus Display Audio
controller or at any auth orized Lexus retailer or Lexus authorized repairer, or
any reliable repairer.
Customizing vehicle features
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Page 658 of 692
6589-2. Customization
IS300h_EE(OM53D89E)
Some function settings are changed simu ltaneously with other functions being
customized. Contact any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer.
Vehicles with a Remote Touch or Lexus Display Audio controller: Settings that
can be changed using the Remote Touc h or Lexus Display Audio controller
Settings that can be changed by any au thorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer
Definition of symbols: O = Available, — = Not available
■Gauges, meters and multi-information display (P. 105, 111)
*1: The default setting varies according to countries.
*2:Except F SPORT models
Customizable features
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FunctionDefault settingCustomized setting
Units*1km (L/100km)km (km/L) O—miles (MPG)
Color*2Color 1Color 2O—
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