flat tire LEXUS RC300 2018 Owners Manual

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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

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

116 2. Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Eco Driving Indicator
Eco Driving Indicator will not operate under the following conditions: ●
The shift lever is in any position other than D. ●
A paddle shift swit ch is operated.●
Neither normal mode nor Eco drive mode is selected. (  P. 301)●
The vehicle speed is approximately 80 mph (130 km/h) or higher. ■
Background color of the indicator/shift posi tion display area (except F SPORT models)
The background color of the indicator/shift po sition display area is changed according to
the driving mode as follows (  P. 301):●
Eco drive mode: Blue ●
Sport mode: Red ■
G-force display (if equipped)
The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline. ■
Suspension of the settings display ●
Some settings cannot be changed while driv ing. When changing settings, park the
vehicle in a safe place. ●
If a warning message is displa yed, operation of the settin gs display will be suspended.■
Tire pressure ●
It may take a few minutes to display the tire inflation pressure after the engine switch is
turned to IGNITION ON mode. It may also take a few minutes to display the tire infla-
tion pressure after inflation pressure has been adjusted.●
“---” may be displayed if the tire position information cannot be determined due to
unfavorable radio wave conditions. ●
Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.Eco Driving Indicator Light
During Eco-friendly acceleration (Eco driv-
ing), the Eco Driving Indicator Light will turn
on. When the acceleration exceeds the Zone
of Eco driving, or when the vehicle is stopped,
the light turns off.
Eco Driving Indicator Zone Display
Suggests the Zone of Eco driving with current
Eco driving ratio based on acceleration.
Eco driving ratio based on acceleration
If the acceleration exceeds the Zone of Eco
driving, the right side of the Eco Driving Indi-
cator Zone Display will illuminate.
Zone of Eco driving 1
2
3
4

128 2. Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)●
Switching the display
To switch to advanced display, press .
To return to normal display, press . ●
Resetting the record of maximum G-forces
With the record of maximum G-forces displayed, press and hold to
reset the display. ●
Peak hold function (advanced display only)
If lateral G-forces of 0.5 G or
greater are generated, the G-
force value displayed on the sub-
content display ar ea will turn yel-
low and be held for 3 seconds.■
Tire pressure
Displays the tire inflation pressure (  P. 413)Unlike the tire pressure display on the drive information menu, the tire inflation
pressure display of the “F” content menu can be displayed while lap time is being
measured.■
Rear wing position
Displays the raised/retracted state of the active rear wing

1332. Instrument cluster
2
Instrument cluster
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
G-force display ●
The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline. ●
The steering amount, accelerator pedal input, and brake fluid pressure displays are dis-
abled until the engine has warmed up (the variable red zone of the tachometer has
retracted to 7300 rpm).
After the engine has warmed up, these displays will be enabled. ●
Depending on the vehicle usage conditions, the brake fluid pressure display may not
reach its maximum reading even though the brake pedal is fully depressed. ●
If a battery terminal is disconnected and reconnected, the steering amount display may
be disabled temporarily. Afte r driving the vehicle for a while , the display will be enabled.■
Suspension of the settings display
In the following situations, op eration of the settings disp lay will be temporarily sus-
pended. ●
When a warning message appears on the multi-information display●
When the vehicle begins to move ■
Tire pressure ●
It may take a few minutes to display the tire inflation pressure after the engine switch is
turned to IGNITION ON mode. It may also take a few minutes to display the tire infla-
tion pressure after inflation pressure has been adjusted.●
“---” may be displayed if the tire position information cannot be determined due to
unfavorable radio wave conditions. ●
Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge. ■
When disconnecting and reco nnecting battery terminals
The following information data will be reset: ●
Drive information ●
Lap timer: Measured lap times, history ●
G-force: Record of the maximum G-forces■
Using the lap timer
If the engine is stopped while a lap is being timed, the lap timer will stop and the lap time
up to that point will be recorded. ■
Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.

200 4-1. Before driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)NOTICE ■
When driving the vehicle ●
Do not depress the accelerator and brake pedals at the same time while driving, as
this may restrain the engine output.●
Do not use the accelerator pedal or depre ss the accelerator and brake pedals at the
same time to hold the vehicle on a hill. ■
When parking the vehicle
Always set the parking brake, and shift the sh ift lever to P. Failure to do so may cause
the vehicle to move or the vehicle may acce lerate suddenly if th e accelerator pedal is
accidentally depressed. ■
Avoiding damage to vehicle parts ●
Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage the power steering motor. ●
When driving over bumps in the road, drive as slowly as possible to avoid damaging
the wheels, underside of the vehicle, etc. ●
RC300: Make sure to idle the engine immediately after high-load driving. Stop the
engine only after the turb ocharger has cooled down.
Failure to do so may cause damage to the turbocharger. ■
If you get a flat tire while driving
A flat or damaged tire may cause the following situations . Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle. ●
It may be difficult to control your vehicle. ●
The vehicle will make abnormal sounds or vibrations. ●
The vehicle will lean abnormally.
Information on what to do in case of a flat tire (  P. 489, 502)■
When encountering flooded roads
Do not drive on a road that has flooded af ter heavy rain etc. Doing so may cause the
following serious damage to the vehicle: ●
Engine stalling ●
Short in electrical components ●
Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to have
your Lexus dealer check the following: ●
Brake function ●
Changes in quantity and quality of oil and fluid used for the engine, transmission,
transfer (AWD models), differential, etc. ●
Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.

2314-3. Operating the lights and wipers
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)●
Bicycles or similar vehicles may not be detected. ●
In the following situations the system may not be able to correctly detect the surround-
ing brightness level. This may cause the lo w beams to remain on or the high beams to
flash or dazzle pedestrians or vehicles ahead. In such a case, it is necessary to manually
switch between the high and low beams.
• When driving in inclement weather (heavy ra in, snow, fog, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or damaged
• When the camera sensor is deformed or dirty
• When the temperature of the camera sensor is extremely high
• When the surrounding brightness level is equal to that of he adlights, tail lights or fog
lights
• When headlights or tail lights of vehicles ahead are turned off, dirty, changing color,
or not aimed properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
• When driving through an area of intermittently changi ng brightness and darkness
• When frequently and repeated ly driving ascendin g/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object ahea d of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as a container on a
truck
• When the vehicle's headlights are damaged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams repeat-
edly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling pedestri-
ans or other drivers■
Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are met.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to IGNITION ON mode.
Within 30 seconds after , re peat pulling the he adlight switch lever to the original
position then pushing it to the high beam position quickly 10 times, then leave the lever
in high beam position.
If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3
times.
Automatic High Beam (head lights) may turn on even the vehicle is stopped.1
2
3 2
4

2534-5. Using the driving support systems
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING ■
When to disable the pre-collision system
In the following situations, di sable the system, as it may not operate properly, possibly
leading to an accident resultin g in death or serious injury:●
When the vehicle is being towed ●
When your vehicle is towing another vehicle ●
When transporting the vehicle via truck, bo at, train or similar means of transportation●
When the vehicle is raised on a lift with the engine running and the tires are allowed to
rotate freely ●
When inspecting the vehicle using a drum tester such as a chassis dynamometer or
speedometer tester, or when using an on vehicle wheel balancer ●
When a strong impact is applied to the fron t bumper or front grille, due to an accident
or other reasons ●
If the vehicle cannot be driven in a stable manner, such as when the vehicle has been
in an accident or is malfunctioning ●
When the vehicle is driven in a sporty manner or off-road●
When the tires are not properly inflated ●
When the tires are very worn ●
When tires of a size other than specified are installed ●
When tire chains are installed ●
When a compact spare tire or an emergency tire puncture repair kit is used ●
If equipment (snow plow, etc.) that may obstruct the radar sensor or camera sensor is
temporarily installed to the vehicle

2594-5. Using the driving support systems
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)• After the engine has started the vehicle has not been driven for a certain amount of
time
• While making a left/right turn and for a few seconds after making a left/right turn
• While driving on a curve and for a few seconds after driving on a curve
• If your vehicle is skidding
• If the wheels are misaligned
• If a wiper blade is blocking the camera sensor
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on a hill
• If the radar sensor or ca mera sensor is misaligned●
In some situations such as the following, sufficient braking forc e may not be obtained,
preventing the system from performing properly:
• If the braking functions cannot operate to their full extent, such as when the brake
parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively worn,
improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery surface●
Some pedestrians such as the following may not be detected by the radar sensor and
camera sensor, preventing the system from operating properly:
• Pedestrians shorter than approximately 3.2 ft. (1 m) or taller than approximately 6.5
ft. (2 m)
• Pedestrians wearing oversized clothing (a ra in coat, long skirt, etc.), making their sil-
houette obscure
• Pedestrians who are carrying large baggage, holding an umbrella, etc., hiding part
of their body
• Pedestrians who are bending forward or squatting
• Pedestrians who are pushing a stroller , wheelchair, bicycle or other vehicle
• Groups of pedestrians which are close together
• Pedestrians who are wearing white and look extremely bright
• Pedestrians in the dark, such as at night or while in a tunnel
• Pedestrians whose clothing appears to be nearly the same color or brightness as
their surroundings
• Pedestrians near walls, fences , guardrails, or large objects
• Pedestrians who are on a metal object (manhole cover, steel plate, etc.) on the road
• Pedestrians who are walking fast
• Pedestrians who are changing speed abruptly
• Pedestrians running out from be hind a vehicle or a large object
• Pedestrians who are extremely close to the side of the vehicle (outside rear view
mirror, etc.)• If the front of the vehicle is raised or low-
ered