2017 Lexus IS300h change time

4776-2. Using the air conditioning system
6
Interior features
IS300h_EE(OM53D89E)
■Registering air conditioning settings to electronic keys (vehicles with driving position
memory)
●Unlocking the vehicle using an electronic key and turning the power switch to ON mode will recall that ke y’s registered air conditioning settings.
●When the power switch is turned off, the current air conditioning settings will automati-
cally 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 conditioning setting when unlocked using the smart entry & start system can be changed.* For details, contact any authorized Lexus
retailer or Lexus authorized re pairer, 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 accordin g 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 outlets 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 ai r mode. This is effective in preventing out- side air from entering the vehicle interi or. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature.
■Operation of the air conditioni ng 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

4786-2. Using the air conditioning system
IS300h_EE(OM53D89E)
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior
to turning the vehicle off. • The start timing of the blower may be dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.
■Air conditioning filter
 P. 547
■Customization
Settings (e.g. A/C Auto switch operation) can be changed. (Customizable features: P. 663)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The differ- ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on.
●Do not touch the glass at lower part of the windshield or to the side of the front pillars
when the windshield wiper de-icer is on.
NOTICE
■To prevent 12-vol t battery discharge
Do not leave the air conditioni ng system on longer than necessary when the hybrid sys- tem is off.
●Do not place anything on the instrumentpanel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

4806-2. Using the air conditioning system
IS300h_EE(OM53D89E)
●The heated steering wheel can be used when the power switch is in ON mode.
●The heated steering wheel will automatically turn off after about 30 minutes.
Each time the switch is pressed, the
intensity of the seat heater changes and
the level indicator lights (amber) light
as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
■The seat heaters can be used when
The power switch is in ON mode.
■Seat heater timer control
To enable seat heater timer control, press and hold the driver and front passenger seat heater switches at the same time until a buzzer sounds once. If a seat heater is turned on
while seat heater timer control is enabled, the intensity of the seat heater will automati-
cally change from Hi MidLo.
The timing of the change in seat heater intensity differs depending on the temperature
inside the cabin, etc. when the seat heater is operating.
To disable seat heater timer control, press and hold the driver and front passenger seat heater switches at the same time until a buzzer sounds twice.
Each time the switch is pressed, the
intensity of the seat ventilator changes
and the level indicator lights (green)
light as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The seat ventilators can be used when the power switch is in ON mode.
Seat heaters
Type A Type B
Seat ventilators

4836-3. Using the interior lights
6
Interior features
IS300h_EE(OM53D89E)
■The interior lights and personal lights can be operated when
The interior lights and person al lights can be used regardless of the power switch mode.
However, when the power switch is turned off, they can be used only when the 12-volt battery protection function is not operating.
■12-volt battery protection function
To prevent the 12-volt battery from being discharged, approximately 20 minutes after the power switch is turned off, the power supp lied to the interior lights, personal lights,
and other lights will be cut off au tomatically. (If the interior lights, etc. are left on when the
power switch is turned off, they will be turned off automatically.)
To turn the interior lights, etc. back on , turn the power switch to ACCESSORY or ON
mode or operate the interior light swit ch until the interior lights turn on.
If any of the lights are illumina ted automatically due to the illuminated entry system, the 12-volt battery protection function will be canceled.
■Illuminated entry system
The lights automatically turn on/off according to power switch mode, the presence of the electronic key, whether the doors are locked/unlocked, and whether the doors are
opened/closed.
■Customization
Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 657)
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than necessary when the hybrid system is off.

5297-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53D89E)
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire th at is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size. • Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects th e radio wave signals is installed. • If there is a lot of snow or ice on the vehi cle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level. • If tires not equipped with tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered
in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air- port or other facility that generates strong radio waves or electrical noise
• When carrying a portable ra dio, cellular phone, cordless phone or other wireless
communication device
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
■The initialization operation
●Make sure to carry out init ialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carr ying out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the power switch off during initialization, it is not neces- sary to press the reset switch again as initialization will restart automatically when the
power switch has been turned to ON mode for the next time.
●If you accidentally press the reset switch when initialization is not necessary, adjust the tire inflation pressure to th e specified level when the tires are cold, and conduct initial-
ization again.
■Warning performance of the tire pressure warning system
The warning of the tire pressu re warning system will change in accordance with the con-
ditions under which it was initialized. For this reason, the system may give a warning even
if the tire pressure does not reach a low enough level, or if the pressure is higher than the pressure that was adjusted to when the system was initialized.

6308-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
■Stopping the hybrid system
Shift the shift lever to P and pr ess the power switch as you normally do when stopping the
hybrid system.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. (P. 549)
■Alarm (if equipped)
Using the mechanical key to lock th e doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the alarm may be triggered.
■Changing power switch modes
Release the brake pedal and press the power switch in step above. The hybrid system does not start and modes will be changed each time the switch is
pressed. ( P. 220)
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the
customization setting. If it is off, turn the function on.
(Customizable features: P. 657)
●Check if battery-saving mode is set. If it is set, cancel the function. (P. 158)
WARNING
■When using the mechanical key and operating the power windows or moon roof
Operate the power window or moon roof after checking to make sure that there is no possibility of any passenger having any of their body parts caught in the window or
moon roof.
Also, do not allow children to op erate the mechanical key. It is possible for children and other passengers to get caught in the power window or moon roof.
3

6629-2. Customization
IS300h_EE(OM53D89E)
■Turn signal lever ( P. 233)
*1: After flashing the turn signal lights when turning left or right while this function is off
and the turn signal lever is moved to the first position in the direction of the flashing
light, the turn signal lights can be selected to be flashing or off.
*2: The turn signal lights keep flashing if the turn signal lever is moved to the first position
in the direction of flashing light.
*3: The turn signal lights will be off if the turn signal lever is moved to the first position in
the direction of flashing light.
■Automatic light control system ( P. 237)
FunctionDefault settingCustomized setting
The number of times the turn sig-
nal lights flash automatically when
the turn signal lever is moved to the first position during a lane
change*1
3
5
—O7
Off *2
Off*3
12
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off30 seconds
60 seconds
—O90 seconds
120 seconds
12

665
9
9-2. Customization
Vehicle specifications
IS300h_EE(OM53D89E)
■Vehicle customization
●When the speed-detecting automatic door lock and shift-linked automatic door lock
are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be locked.
• If the vehicle is started with all doors locked, the speed-detecting automatic door
lock will not operate. • If the vehicle is started with any door unlocked, the speed-detecting automatic door
lock will operate.
●When the smart entry & start system is off, the entry unlock function cannot be custom-
ized.
●When the doors remain closed after unlocking the doors and the timer activated auto- matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational signal (Emergency flashers) function set-
tings.
●Some settings can be changed using a switch or the audio system screen. If a setting is
changed using a switch , the changed setting will not be reflected on the audio system
screen until the power switch is turned off and then to ON mode.
WARNING
■During customization
As the hybrid system needs to be operating during customization, ensure that the vehi-
cle is parked in a place with adequate ventil ation. In a closed area such as a garage, exhaust gases including harmful carbon mo noxide (CO) may collect and enter the
vehicle. This may lead to deat h or a serious health hazard.
NOTICE
■During customization
To prevent 12-volt battery discharge, ensure that the hybrid system is operating while
customizing features.