Fuel system Lexus IS300h 2017 Owner's Guide

2274-2. Driving procedures
4
Driving
IS300h_EE(OM53D89E)
*1: To improve fuel efficiency and reduce noise, shift the shift lever to D for normal driv-
ing.
*2: By selecting shift ranges using S mode, yo u can control accelerating force and engine
braking force.
■Sport mode/Eco drive mode
 P. 348
■Snow mode
Snow mode can be selected to suit th e conditions when driving on slippery
road surfaces, such as snow.
Press the switch.
Press the switch again to return to
normal mode.
Shift position purpose
Shift positionObjective or function
PParking the vehicle/starting the hybrid system
RReversing
NNeutral
(Condition in which the power is not transmitted)
DNormal driving*1
SS mode driving*2 ( P. 229)
Selecting the driving mode

2544-4. Refueling
IS300h_EE(OM53D89E)
WARNING
■When refueling the vehicle
Observe the following precautions while refu eling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting from static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fu el tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances th at are harmful if inhaled.
●Do not smoke while refueling the vehicle. Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any pe rson or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to preven t fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.

2564-4. Refueling
IS300h_EE(OM53D89E)
After refueling, turn the fuel tank cap
until you hear a click. Once the cap
is released, it will turn slightly in the
opposite direction.
Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door unt il you hear a click.
When you lock the doors, the fuel filler
door will also lock.
■Fuel filler door lock condition
The fuel filler door may not be locked even wh en the vehicle’s doors are locked in the fol- lowing situations:
●When operating the door lock button inside the vehicle
●When the automatic door locking system is operated (P. 148)
●When the fuel filler door is closed after the vehicle’s doors are locked
Closing the fuel tank cap
1
2
WARNING
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing so may cause a fire or other incident whic h may result in death or serious injury.

3484-5. Using the driving support systems
IS300h_EE(OM53D89E)
Vehicles without Adaptive Variable Suspension System
Normal mode
Provides an optimal balance of fuel ec onomy, 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-fr iendly manner and improve fuel econ-
omy through moderate throttle charact eristics 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 hybrid system to prov ide quick, powerful acceleration. This
mode also changes the steering feel, maki ng it suitable for when agile driving
response is desired, such as when driving on roads with many curves.
When not in sport mode and the driving mode select switch is turned to the right, the “SPORT” indicator comes on, and the hybrid system indicator changes to the
tachometer. ( P. 105)
Driving mode select switch
The driving modes can be selected to suit driving conditions.
Except F SPORT
models
F SPORT
models
1
2
3

3494-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D89E)
Vehicles with Adaptive Variable Suspension System
Normal mode/Customized mode
Normal mode and customized mode ar e selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “CUSTOMIZE” indicator will be illuminated.
When Eco drive mode or sport mode is se lected, pressing the switch changes the driving mode to normal mode.
• Normal mode
Provides an optimal balance of fuel economy, quietness, and dynamic per-
formance. Suitable for city driving.
• Customized mode
Allows you to drive with the following functions set to your preferred set-
tings.
Customized mode settings can on ly be changed on the drive mode
customization display of the audio system screen.
(Displaying the drive mode customization display: P. 657)
1

3504-5. Using the driving support systems
IS300h_EE(OM53D89E)
Eco drive mode
Helps the driver accelerate in an eco-fr iendly manner and improve fuel econ-
omy through moderate throttle charact eristics 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
•SPORT S mode
Controls the hybrid system to prov ide quick, powerful acceleration. This
mode is suitable for when agile drivin g response is desired, such as when
driving on roads with many curves.
When not in sport mode and the driving mode select switch is turned to the right, the “SPORT” indicator comes on, and the hy brid system indicator changes to the
tachometer. ( P. 105)
•SPORT S+ mode
Helps to ensure steering performanc e and driving stability by simultane-
ously controlling the steering and suspension in addition to the hybrid sys-
tem. Suitable for sportier driving.
When in SPORT S mode, if the driving mode select switch is turned to the right, the “SPORT S+” indicator will come on.
FunctionSetting
Powertrain
Normal
Power
Eco
ChassisNormal
Sport
Air conditioning systemNormal
Eco
2
3

3514-5. Using the driving support systems
4
Driving
IS300h_EE(OM53D89E)
■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. To improve air conditioning performance, adjust the fan speed or turn off Eco drive mode.
■Automatic deactivation of sport mode and customized mode
If the power switch is turned off after driv ing in sport mode or customized mode, the drive mode will be changed to normal mode.
■Driving mode pop-up display (veh icles with a 10.3-inch display)
When the driving mode is changed, the sele cted driving mode will be temporarily dis- played on the side display. ( P. 464)

358
IS300h_EE(OM53D89E)
4-6. Driving tips
◆Using Eco drive mode
When using Eco drive mode, the torq ue corresponding to the accelerator
pedal depression amount can be generate d more smoothly than it is in normal
conditions. In addition, the operation of the air conditioning system (heating/
cooling) will be minimized, im proving the fuel economy. (P. 348)
◆Use of Hybrid System Indicator
The Eco-friendly driving is possible by keeping the indicator needle (except F
SPORT models) or bar display (F SPOR T models) of Hybrid System Indicator
within the Eco area. ( P. 109)
◆Shift lever operation
Shift the shift lever to D wh en stopped at a traffic light, or driving in heavy traf-
fic, etc. Shift the shift lever to P when parking. When using the N, there is no
positive effect on fuel consumption. In the N, the gasoline engine operates but
electricity cannot be genera ted. Also, when using the air conditioning system,
etc., the hybrid battery (tractio n battery) power is consumed.
◆Accelerator pedal/brake pedal operation
●Drive your vehicle smoothly. Avoid abrupt acceleration and deceleration.
Gradual acceleration and deceleration will make more effective use of the
electric motor (traction motor) withou t having to use gasoline engine power.
●Avoid repeated acceleration. Repeated acceleration consumes hybrid bat-
tery (traction battery) power, resulting in poor fuel consumption. Battery
power can be restored by driving with the accelerator pedal slightly released.
◆When braking
Make sure to operate the brakes gently and in a timely manner. A greater
amount of electrical energy can be regenerated when slowing down.
Hybrid vehicle driving tips
For economical and ecological driving, pay attention to the following points:

3594-6. Driving tips
4
Driving
IS300h_EE(OM53D89E)
◆Delays
Repeated acceleration and deceleration, as well as long waits at traffic lights,
will lead to bad fuel economy. Check tr affic reports before leaving and avoid
delays as much as possible. When drivin g in a traffic jam, gently release the
brake pedal to allow the vehicle to move forward slightly while avoiding over-
use of the accelerator pedal. Doing so can help control excessive gasoline
consumption.
◆Highway driving
Control and maintain the vehicle at a co nstant speed. Before stopping at a toll
booth or similar, allow plenty of ti me to release the accelerator and gently
apply the brakes. A greater amount of electrical energy can be regenerated
when slowing down.
◆Air conditioning
Use the air conditioning only when necessary. Doing so can help reduce
excessive gasoline consumption.
In summer: When the ambient temperature is high, use the recirculated air
mode. Doing so will help to reduce the burden on the air conditioning system
and reduce fuel consumption as well.
In winter: Because the gasoline engine will not automatically cut out until it
and the interior of the vehicle are warm , it will consume fuel. Also, fuel con-
sumption can be improved by av oiding overuse of the heater.
◆Checking tire inflation pressure
Make sure to check the tire inflation pr essure frequently. Improper tire infla-
tion pressure can caus e poor fuel economy.
Also, as snow tires can cause large amou nts of friction, their use on dry roads
can lead to poor fuel economy. Use ti res that are appropriate for the season.
◆Luggage
Carrying heavy luggage will lead to poor fuel economy. Avoid carrying
unnecessary luggage. Installing a large roof rack will also cause poor fuel
economy.

3695-1. Basic Operations
5
Lexus Display Audio system
IS300h_EE(OM53D89E)
■“MENU” screen
To display the “MENU” screen, press the “MENU” button on the controller unit.
ButtonFunction
“Audio”Display the audio top screen
( P. 394, 396, 402, 406, 411, 420)
“Climate”Display the air conditioning control screen (P. 466)
“Telephone”Display the phone top screen (P. 421)
“Car” Display the energy monitor or fuel consumption screen
( P. 127)
“Info”Display the “Information” screen (P. 450)
“Setup”Display the “Setup” screen (P. 378)
“Display”Display the display settings screen (P. 383)