belt Lexus IS300 2018 Owner's Manual / LEXUS 2018 IS300,IS350 OWNER'S MANUAL (OM53E34U)

IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Pictorial indexSearch by illustration
1For safety
and securityMake sure to read through them
2Instrument clusterHow to read the gauges and meters, the variety of
warning lights and indicators, etc.
3Operation of each
componentOpening and closing the doors and windows,
adjustment before driving, etc.
4DrivingOperations and advice which are necessary for driving
5Lexus Display
Audio systemOperating the Lexus Display Audio system
6Interior featuresUsage of the interior features, etc.
7Maintenance
and careCaring for your vehicle and maintenance procedures
8When trouble
arisesWhat to do in case of malfunction or emergency
9Vehicle
specificationsVehicle specifications, customizable features, etc.
10For ownersReporting safety defects for U.S. owners, and seat belt
and SRS airbag instructio ns for Canadian owners
IndexSearch by symptom
Search alphabetically

TABLE OF CONTENTS2
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
For your information................................... 8
Reading this manual................................... 12
How to search ..............................................13
Pictorial index............................................... 14
1-1. For safe use
Before driving ................................ 26
For safe driving .............................. 28
Seat belts .......................................... 30
SRS airbags ..................................... 36
Front passenger occupant classification system ................. 46
Safety information for children .......................................... 52
Child restraint systems ............... 53
Installing child restraints............. 57
Exhaust gas precautions.............67
1-2. Theft deterrent system Engine immobilizer system....... 68
Alarm ................................................... 71
Theft prevention labels (for U.S.A.).....................................74
2. Instrument cluster Warning lights and indicators........................................76
Gauges and meters .......................81
Multi-information display .......... 86
Fuel consumption information ................................. 103 3-1. Key information
Keys .................................................... 110
3-2. Opening, closing and locking the doors and trunk
Doors ................................................. 116
Trunk ................................................. 122
Smart access system with push-button start....................... 127
3-3. Adjusting the seats Front seats ......................................135
Rear seats ....................................... 137
Driving position memory..........139
Head restraints .............................144
3-4. Adjusting the steering wheel and mirrors
Steering wheel .............................. 147
Inside rear view mirror ..............149
Outside rear view mirrors ........ 151
3-5. Opening, closing the windows and moon roof
Power windows ............................154
Moon roof...................................... 158
1For safety and security
2Instrument cluster
3Operation of each
component

7
1
9 8
7 5 4
3
2
10
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
6
If the electronic key does not
operate properly..................... 569
If the vehicle battery is discharged ................................. 572
If your vehicle overheats......... 576
If the vehicle becomes stuck .............................................580
9-1. Specifications Maintenance data (fuel, oil level, etc.) .................. 584
Fuel information ......................... 596
Tire information .......................... 599
9-2. Customization Customizable features ............... 611
9-3. Initialization Items to initialize......................... 620 Reporting safety defects for
U.S. owners ........................................... 622
Seat belt instructions for Canadian owners (i n French)........ 623
SRS airbag instructions for Canadian owners (i n French)........ 624
What to do if... (Troubleshooting)............................... 634
Alphabetical inde x ................................ 638
9Vehicle specifications
10For owners
Index
For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM
OWNER’S MANUAL” for information re garding the equipment listed below.
• Navigation system
• Audio/video system•Lexus Enform

8
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Please note that this manual applies to all
models and explains all equipment, including
options. Therefore, you may find some expl anations for equipment not installed on your
vehicle.
All specifications provided in this manual are current at the time of printing. However,
because of the Lexus policy of continual pr oduct improvement, we reserve the right to
make changes at any time without notice.
Depending on specifications, th e vehicle shown in the illustrations may differ from your
vehicle in terms of color and equipment.
Approximately five hours after the engine is turned off, you may hear sound coming from
under the vehicle for several minutes. This is the sound of a fuel evaporation leakage
check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are cur-
rently available in the market. You should kn ow that Toyota does not warrant these prod-
ucts and is not responsible fo r their performance, repair, or replacement, or for any
damage they may cause to, or adverse effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification with
non-genuine Lexus products could affect its performance, safety or durability, and may
even violate governmental regulations. In addition, damage or performance problems
resulting from the modification may not be covered under warranty.
The installation of a mobile two-way radio system in your vehicle could affect electronic
systems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Lexus Safety System+
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special instruc-
tions regarding installation of a mobile two-way radio system.
For your information
Main Owner’s Manual
Noise from under vehicle after turning off the engine
Accessories, spare parts and modification of your Lexus
Installation of a mobile two-way radio system

10
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR
is to record, in certain crash or near crash-
like situations, such as an air bag deployment
or hitting a road obstacle, data that will a ssist in understanding how a vehicle’s systems
performed. The EDR is designed to record data related to vehicle dynamics and safety
systems for a short period of ti me, typically 30 seconds or less.
The EDR in this vehicle is desi gned to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenge r safety belts were buckled/fastened;
• How far (if at all) the driver was depressi ng the accelerator and/or brake pedal; and,
• How fast the vehicle was traveling.
These data can help provide a better understanding of the circumstances in which
crashes and injuries occur.
NOTE: EDR data are recorded by your vehicle only if a non-trivial crash situation occurs;
no data are recorded by the EDR under norm al driving conditions and no personal data
(e.g., name, gender, age, and crash location) are recorded. However, other parties, such
as law enforcement, could combine the EDR data with the type of personally identifying
data routinely acquired during a crash investigation.
To read data recorded by an EDR, special equipment is required, and access to the vehi-
cle or the EDR is needed. In addition to the vehicle manufacturer, other parties, such as
law enforcement, that have the special equipm ent, can read the information if they have
access to the vehicle or the EDR.
●Disclosure of the EDR data
Lexus will not disclose the data recorded in an EDR to a third party except when:
• An agreement from the vehicle’s owner (or the lessee for a leased vehicle) is obtained
• In response to an official request by the police, a court of law or a government
agency
• For use by Lexus in a lawsuit
However, if necessary, Lexus may:
• Use the data for research on vehicle safety performance
• Disclose the data to a third party for rese arch purposes without disclosing informa-
tion about the specific vehicle or vehicle owner
Event data recorder

11
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
The SRS airbag and seat belt pretensioner
devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with th e airbags and seat belt pretensioners left as
they are, this may cause an accident such as fire. Be sure to have the systems of the SRS
airbag and seat belt pretensioner removed and disposed of by a qualified service shop or
by your Lexus dealer befo re you scrap your vehicle.
Special handling may apply, See www.dt sc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.
Scrapping of your Lexus
Perchlorate Material
WARNING
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have impaired your ability to operate your vehicle. Alcohol and
certain drugs delay reaction time, impair judgment and reduce coordination, which
could lead to an accident that could result in death or serious injury.
Defensive driving: Always driv e defensively. Anticipate mistakes that other drivers or
pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full attention to driving. Anything that distracts the
driver, such as adjusting controls, talking on a cellular phone or reading can result in a
collision with resulting death or serious in jury to you, your occupants or others.
■General precaution regarding children’s safety
Never leave children unattended in the vehicl e, and never allow children to have or use
the key.
Children may be able to start the vehicle or sh ift the vehicle into neutral. There is also a
danger that children may injure themselves by play ing with the windows, the moon
roof, or other features of the vehicle. In addition, heat build-up or extremely cold tem-
peratures inside the vehicle can be fatal to children.

22Pictorial index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Interior
SRS airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 36
Floor mats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 26
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 135
Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 144
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 30
Console box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 422
Inside lock buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 11 8
Cup holders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 423
Assist grips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4311
2
3
4
5
6
7
8
9

25
For safety and security1
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
1-1. For safe use
Before driving................................. 26
For safe driving .............................. 28
Seat belts .......................................... 30
SRS airbags ..................................... 36
Front passenger occupant classification system.................. 46
Safety information for children .......................................... 52
Child restraint systems ............... 53
Installing child restraints............. 57
Exhaust gas precautions ............ 67
1-2. Theft deterrent system Engine immobilizer system ....... 68
Alarm ................................................... 71
Theft prevention labels (for U.S.A.).................................... 74

281-1. For safe use
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Adjust the angle of the seatback so
that you are sitting straight up and so
that you do not have to lean forward
to steer. (→P. 135)
Adjust the seat so that you can
depress the pedals fully and so that
your arms bend slightly at the elbow
when gripping the steering wheel.
(→ P. 135)
Lock the head restraint in place with th e center of the head restraint closest to
the top of your ears. ( →P. 144)
Wear the seat belt correctly. ( →P. 30)
Make sure that all occupants are wearing their seat belts before driving the vehi-
cle. ( →P. 30)
Use a child restraint system appropriate for the child until the child becomes
large enough to properly wear the vehicle’s seat belt. ( →P. 53)
For safe driving
For safe driving, adjust the seat and mirror to an appropriate position before
driving.
Correct driving posture
1
2
Correct use of the seat belts
3
4

301-1. For safe use
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
●Extend the shoulder belt so that it
comes fully over the shoulder, but
does not come into contact with the
neck or slide off the shoulder.
●Position the lap belt as low as possi-
ble over the hips.
●Adjust the position of the seatback.
Sit up straight and well back in the
seat.
●Do not twist the seat belt.
To fasten the seat belt, push the plate
into the buckle until a click sound is
heard.
To release the seat belt, press the
release button.
Seat belts
Make sure that all occupants are wearin g their seat belts before driving the
vehicle.
Correct use of the seat belts
Fastening and releasing the seat belt
Release button
1
2