engine LEXUS RC300 2018 Owners Manual

TABLE OF CONTENTS
2
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)For your information................................... 8
Reading this manual................................... 12
How to search ..............................................13
Pictorial index............................................... 14
1-1. For safe use
Before driving ................................ 30
For safe driving .............................. 32
Seat belts .......................................... 34
SRS airbags ..................................... 40
Front passenger occupant
classification system ...................51
Safety information for
children .......................................... 57
Child restraint systems ............... 58
Exhaust gas precautions............ 78
1-2. Theft deterrent system
Engine immobilizer system....... 79
Alarm .................................................80
Theft prevention labels ............... 82 2. Instrument cluster
Warning lights and
indicators....................................... 84
Gauges and meters
(RC350/RC300) .....................91
Gauges and meters (RC F)...... 96
Multi-information display
(RC350/RC300) ................. 103
Multi-information display
(RC F) ............................................. 118
Fuel consumption
information ..................................1351
For safety and security 2
Instrument cluster

3 1
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RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 53-1. Key information
Keys .................................................. 140
3-2. Opening, closing and
locking the doors and
trunk
Doors ................................................145
Trunk .................................................. 151
Smart access system with
push-button start.......................156
3-3. Adjusting the seats
Front seats ....................................... 161
Rear seats .......................................164
Power easy access system/
driving position memory/
memory recall function ..........166
Head restraints .............................. 171
3-4. Adjusting the steering
wheel and mirrors
Steering wheel .............................. 174
Inside rear view mirror .............. 176
Outside rear view mirrors .......178
3-5. Opening, closing the
windows and moon roof
Power windows ........................... 182
Moon roof ...................................... 186 4-1. Before driving
Driving the vehicle ......................192
Cargo and luggage ....................201
Vehicle load limits ..................... 204
Trailer towing .............................. 205
Dinghy towing ............................. 206
4-2. Driving procedures
Engine (ignition) switch ........... 207
Automatic transmission ............213
Turn signal lever ........................... 221
Parking brake .............................. 222
ASC
(Active Sound Control)
(RC350/RC300) ................ 223
ASC
(Active Sound Control)
(RC F) .......................................... 224
4-3. Operating the lights and
wipers
Headlight switch ........................ 225
Automatic High Beam............. 228
Fog light switch ........................... 232
Windshield wipers and
washer ......................................... 233
4-4. Refueling
Opening the fuel tank cap ....... 2413
Operation of each
component 4
Driving

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9
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 55-4. Using the other interior
features
Other interior features ............ 354
• Sun visors ................................ 354
• Vanity mirrors ....................... 354
• Clock ........................................ 355
• Power outlet .......................... 355
• Armrest.................................... 356
•Trunk storage
extension ................................. 357
• Assist grips .............................358
• Coat hooks.............................358
Garage door opener ............... 359
Compass ....................................... 366
LEXUS Enform Safety
Connect...................................... 370 6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 376
Cleaning and protecting
the vehicle interior................... 381
6-2. Maintenance
Maintenance
requirements ............................ 384
General maintenance.............. 387
Emission inspection and
maintenance (I/M)
programs.................................... 390
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions .................................391
Hood ............................................... 393
Positioning a floor jack ............ 394
Engine compartment ............... 397
Tires ................................................... 412
Tire inflation pressure .............. 420
Wheels ........................................... 423
Air conditio ning filter ............... 425
Electronic key battery...............427
Checking and replacing
fuses.............................................. 429
Light bulbs .................................... 4326
Maintenance and care

TABLE OF CONTENTS
6
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)7-1. Essential information
Emergency flashers .................. 442
If your vehicle has
to be stopped in
an emergency .......................... 443
7-2. Steps to take in
an emergency
If your vehicle needs
to be towed ............................... 444
If you think something is
wrong.............................................451
Fuel pump shut off system ...... 452
If a warning light turns on
or a warning buzzer
sounds ......................................... 453
If a warning message is
displayed .................................... 460
If you have a flat tire
(vehicles with a
spare tire) ................................... 489
If you have a flat tire
(vehicles with
an emergency
tire puncture repair kit) ........ 502
If the engine will not start ..........516
If the electronic key does
not operate pr operly .............. 518
If the vehicle battery is
discharged ................................. 522
If your vehicle overheats......... 526
If the vehicle becomes
stuck ............................................. 532 8-1. Specifications
Maintenance data
(fuel, oil level, etc.) .................. 536
Fuel information ......................... 554
Tire information .......................... 557
8-2. Customization
Customizable features ............ 569
8-3. Items to initialize
Items to initialize......................... 578
8-4. Certifications
Certifications ............................... 579
Reporting safety defects for
U.S. owners ...............................600
Seat belt instructions for
Canadian owners
(in French) .................................. 601
SRS airbag instructions for
Canadian owners
(in French) ................................. 6037
When trouble arises 8
Vehicle specifications
9
For owners

8
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)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 illust rations 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

9
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Your Lexus is equipped with several sophis ticated computers that will record certain
data, such as:
• Engine speed
• Accelerator status
•Brake status
• Vehicle speed
•Shift position
The recorded data varies according to the ve hicle grade level and options with which it is
equipped. These computers do not record conversations or sounds, and only record
images outside of the vehicle in certain situations. ●
Data Transmission
Your vehicle may transmit the data recorded in these computers to Lexus without noti-
fication to you.●
Data usage
Lexus may use the data recorded in these computers to diagnose malfunctions, con-
duct research and development, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the vehicle
is leased
• In response to an official request by the police, a court of law or a government
agency
• For use by Lexus in a lawsuit.
• For research purposes where the data is not tied to a specific vehicle or vehicle
owner●
Usage of data collected through Lexus Enform (U.S. mainland only)
If your Lexus has Lexus Enform and if you have subscribed to those services, please
refer to the Lexus Enform Telematics Subs cription Service Agreement for information
on data collected and its usage.●
To learn more about the vehicl e data collected, used and shar ed by Lexus, please visit
www.lexus.com/privacyvts/.Vehicle data recording

15Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145Locking/unlocking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 145
Opening/closing the side window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 182
Locking/unlocking by using the me chanical key . . . . . . . . . . . . . . . . . . . . . . . . P. 518
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 454, 462
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233 Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 320
To prevent freezing (windshield wiper de-icer)
* . . . . . . . . . . . . . . . . . . . . . . . P. 339
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 378
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 241
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 540
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 548
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 32 0
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . P. 412
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 489, 502
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 393Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 393
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 540
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 526
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 463
Headlights/turn signal lights/side marker lights . . . . . . . . . . . . . P. 221, 225
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
Front fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232 1
2
3
4
5
Light bulbs of the exte rior lights for driving
(Replacing method: P. 432, Watts: P. 553)
* : If equipped6
7
8

18 Pictorial index
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■ Instrument panel
Engine switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 207Starting the engine/changing the mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 207
Emergency stop of the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 443
When the engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 516
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 483
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213Changing the shift position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 213
Precautions against towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 444
When the shift lever does not move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 91, 96Reading the meters/adjusting the instrument panel lights . . . . . . . . . . . . P. 91, 96
Warning lights/indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 84
When the warning lights come on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 453 1
2
3

29
For safety and security
1
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 1-1. For safe use
Before driving................................. 30
For safe driving .............................. 32
Seat belts .......................................... 34
SRS airbags ..................................... 40
Front passenger occupant
classification system................... 51
Safety information for
children .......................................... 57
Child restraint systems ...............58
Exhaust gas precautions ............ 78
1-2. Theft deterrent system
Engine immobilizer system ....... 79
Alarm .................................................80
Theft prevention labels ............... 82

311-1. For safe use
1
For safety and security
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the ped-
als while driving. An unexpectedly high spee d may result or it may become difficult to
stop the vehicle. This could lead to an ac cident, resulting in death or serious injury.■
When installing the driver’s floor mat ●
Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats. ●
Only use floor mats designed for the driver’s seat. ●
Always install the floor mat securely using the retain ing hooks (clips) provided.●
Do not use two or more floor mats on top of each other. ●
Do not place the floor mat bottom-side up or upside-down. ■
Before driving ●
Check that the floor mat is securely fixed in
the correct place with all the provided retain-
ing hooks (clips). Be especially careful to per-
form this check after cleaning the floor. ●
With the engine stopped and the shift lever in
P, fully depress each pedal to the floor to
make sure it does not interfere with the floor
mat.