2018 Lexus IS350 fuel

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

3
1
9 8
7 5 4
3
2
10
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
6
4-1. Before driving
Driving the vehicle ......................164
Cargo and luggage .................... 172
Vehicle load limits .......................175
Trailer towing ................................ 176
Dinghy towing ............................... 177
4-2. Driving procedures Engine (ign ition) switch .............178
Automatic transmission ........... 183
Turn signal lever .......................... 190
Parking brake ................................192
ASC (Active Sound Control) .........193
4-3. Operating the lights and wipers
Headlight switch ..........................194
Automatic High Beam.............. 198
Windshield wipers and washer ......................................... 202
4-4. Refueling Opening the fuel tank cap ...... 210 4-5. Using the driving support
systems
Lexus Safety System+ ................ 214
PCS (Pre-Collision System) ........... 221
LDA (Lane Departure Alert with steering co ntrol) ............ 232
Dynamic radar cruise control ......................................... 239
Intuitive parking assist................251
Lexus parking assist monitor........................................ 260
BSM (Blind Spot Monitor)......276
• BSM function.........................280
• RCTA function...................... 283
Driving mode select switch ...........................................288
Driving assist systems .............. 292
4-6. Driving tips Winter driving tips..................... 297
4Driving

TABLE OF CONTENTS6
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
6-5. Using the other interior
features
Other interior features .............427 • Sun visors .................................427
• Vanity mirrors ........................427
• Clock .........................................427
• Power outlet .......................... 428
• Armrest.................................... 429
• Rear sunshade ...................... 429
• Assist grips ...............................431
• Coat hooks...............................431
Garage door opener ............... 432
Compass ....................................... 439
LEXUS Enform Safety Connect...................................... 443
LEXUS Enform Remote ......... 448
LEXUS Enform Service Connect...................................... 449
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 452
Cleaning and protecting the vehicle interior.................. 456
7-2. Maintenance Maintenance requirements ............................ 459
General mainte nance.............. 462
Emission inspection and maintenance (I/M)
programs.................................... 465 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ............................... 466
Hood ............................................... 468
Positioning a floor jack ............ 469
Engine compartment ................. 471
Tires ................................................. 483
Tire inflation pressure .............. 493
Wheels ........................................... 496
Air conditio ning filter ............... 498
Electronic key battery..............500
Checking and replacing fuses.............................................. 502
Light bulbs ....................................505
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
Fuel pump shut off system........521
If a warning light turns on or a warning buzzer
sounds ......................................... 522
If a warning message is displayed .................................... 529
If you have a flat tire .................. 556
If the engine will not start ........ 567
7Maintenance and care
8When trouble arises

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

15Pictorial index
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 297
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . . . . . . . . . . . . . P. 412
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 454
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 587
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 483
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 593
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 29 7
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 483
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 556
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 468
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 468
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 588
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 576
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 532
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 190
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Stop lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 164
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 194
4
5
6
7
Light bulbs of the ex terior lights for driving(Replacing method: P. 505, Watts: P. 595)
*: If equipped
8
9
10
11
12
13
14

75
Instrument cluster2
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
2. Instrument cluster
Warning lights and indicators ....................................... 76
Gauges and meters ...................... 81
Multi-information display .......... 86
Fuel consumption information ................................. 103

772. Instrument cluster
2
Instrument cluster
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
Warning lights inform the driv er of malfunctions in the indicated vehicle systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
(→ P. 522)*1Electric power steering sys-
tem warning light
(→ P. 523)
*1
(Canada)
Brake system warning light
(→ P. 522) LDA (Lane Departure
Alert) indicator (
→P. 523)
*1
(if equipped)
Charging system warning
light ( →P. 522)*1PCS warning light
(→ P. 523)
*1
(U.S.A.)
Malfunction indicator lamp
(→ P. 522)*1
Slip indicator ( →P. 523)
*1
(Canada)
Malfunction indicator lamp
(→ P. 522)*1, 2
(if equipped)
“AFS OFF” indicator
(→ P. 524)
*1SRS warning light
(→ P. 522)Open door warning light
(→ P. 524)
*1
(U.S.A.)
ABS warning light
(→ P. 522)Low fuel level warning light
(→ P. 524)
*1
(Canada)
ABS warning light
(→ P. 522)Driver’s and front passen-
ger’s seat belt reminder light
(→ P. 524)
(U.S.A.)
Parking brake warning light
(→ P. 523)*3Rear passengers’ seat
belt reminder lights
(→ P. 524)
(Canada)
Parking brake warning light
(→ P. 523)*1Master warning light
(→ P. 524)