TABLE OF CONTENTS6
IS300h_EE(OM53D56E)
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................. 442
Cleaning and protecting the vehicle interior ..................446
7-2. Maintenance Maintenance requirements............................. 449
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................. 451
Hood ...............................................453
Positioning a floor jack ............. 454
Engine compartment................455
12-volt battery..............................463
Tires ..................................................466
Replacing the tire ........................476
Tire inflation pressure................482
Wheels............................................484
Air conditioning filter................486
Electronic key battery ............. 488
Checking and replacing fuses ............................................... 491
Light bulbs .....................................495 8-1. Essential information
Emergency flashers.................... 512
If your vehicle has to be stopped in an
emergency .................................. 513
8-2. Steps to take in an emergency
If your vehicle needs to be towed ...................................... 514
If you think something is wrong ...........................................520
If a warning light turns on or a warning buzzer
sounds........................................... 521
If a warning message is displayed..................................... 527
If you have a flat tire (vehicles with
emergency tire
puncture repair kit).................545
If you have a flat tire (vehicles with run-flat
tires) ..............................................559
If the hybrid system will not start ...................................... 560
If the shift lever cannot be shifted from P ............................ 562
7Maintenance and care8When trouble arises
15Pictorial index
IS300h_EE(OM53D56E)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 238
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 322
To prevent freezing (windshield wiper de-icer)
*1. . . . . . . . . . . . . . . . . . . . . . . . P. 419
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 444
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 2 4 6
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 246
Fuel type/fuel tank capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 580
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 466
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 586
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 22
Checking/rotation/tire pressure warning system. . . . . . . . . . . . . . . . . . . . . . . . P. 466
Coping with flat tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 545, 559
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 453
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 453
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 581
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 57 1
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 52 9
Headlights/front position lights/daytime running lights . . . . . . . . . . . . P. 229
Front fog lights
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Stop lights
Emergency brake signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 297
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Rear fog light
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Back up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 21 9
Rear fog light*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 236
Back up light
*3
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 21 9
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 495, Watts: P. 588)
*1: If equipped
*2: Left-hand drive vehicles
*3: Right-hand drive vehicles
8
9
10
11
12
13
14
15
561-1. For safe use
IS300h_EE(OM53D56E)
When the sensors located at the back of the front bumper detect an impact with
a body, such as a pedestrian, which meets or exceeds the threshold level while
the vehicle is being driven within the operational speed range, the system
becomes operational and raises the rear portion of the hood.
Sensors
Hood
Lifters
Pop Up Hood
In the event of a frontal collision with a body, such as a pedestrian, the Pop Up
Hood system raises the rear portion of the hood to reduce the possibility of a
serious impact to the pedestrian’s head area by adding clearance to the
engine compartment.
Pop Up Hood mechanism
1
2
3
79
1
For safety and security
IS300h_EE(OM53D56E)1-2. Hybrid system
Gasoline engine
Electric motor (traction motor)
Hybrid system features
Your vehicle is a hybrid vehicle. It ha
s characteristics different from conven-
tional vehicles. Be sure you are closely familiar with the characteristics of your
vehicle, and operate it with care.
The hybrid system combines the use of a gasoline engine and an electric
motor (traction motor) according to dr iving conditions, improving fuel effi-
ciency and reducing exhaust emissions.
1
2
801-2. Hybrid system
IS300h_EE(OM53D56E)
◆When stopped/during start off
The gasoline engine stops when the vehicle is stopped. During start off, the
electric motor (traction motor) drives the vehicle. At slow speeds or when
traveling down a gentle slope, the engine is stopped and the electric motor
(traction motor) is used.
◆During normal driving
The gasoline engine is predominantly used. The electric motor (traction
motor) charges the hybrid battery (traction battery) as necessary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the hybrid bat-
tery (traction battery) is added to that of the gasoline engine via the electric
motor (traction motor).
◆When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery (traction bat-
tery).
811-2. Hybrid system
1
For safety and security
IS300h_EE(OM53D56E)
■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and decelera-
tion force can be obtained in conjunction with the recharging of the hybrid battery (trac-
tion battery).
●The accelerator pedal is released while driving with the shift lever in D or S.
●The brake pedal is depressed while driving with the shift lever in D or S.
■EV indicator
■Conditions in which the gasoline engine may not stop
The gasoline engine starts an d stops automatically. However, it may not stop automati-
cally in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
●As the gasoline engine charges the hybrid battery (traction battery), the battery does
not need to be charged from an outside source. However, if the vehicle is left parked for
a long time the hybrid battery will slowly discharge. For this reason, be sure to drive the
vehicle at least once every few months for at least 30 minutes or 16 km (10 miles). If the
hybrid battery becomes fully discharged and you are unable to jump-start the vehicle
with a 12-volt battery, contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
●If the shift lever is in N, the hybrid battery (traction battery) will not be charged. Always
shift the shift lever to P when the vehicle is stopped. When driving in heavy traffic, oper-
ate the vehicle with the shift lever in D or S to avoid discharging the battery.
■Charging the 12-volt battery
→ P. 5 6 8
The EV indicator comes on when the vehicle is
driven using only the electric motor (traction
motor) or the gasoline engine is stopped.
821-2. Hybrid system
IS300h_EE(OM53D56E)
■After the 12-volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is being driven by the hybrid battery
(traction battery). If this continues for a few days, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move. For
safety, apply the parking brake and make sure to shift the shift lever to P when parked.
The following sounds or vibrations may occu r when the hybrid system is operating and
are not a malfunction:
●Motor sounds may be heard from under the vehicle.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the hybrid transmission when the hybrid system starts or
stops.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vents on the both sides of the rear
seatback.
■Maintenance, repair, recycling, and disposal
Contact any authorized Lexus dealer or repa irer, or another duly qualified and equipped
professional regarding maintenance, repair, re cycling and disposal. Do not dispose of the
vehicle yourself.
■Customization
Settings (e.g. on/off operation of the EV indicator) can be changed.
(Customizable features →P. 5 9 1 )