engine oil LEXUS RC350 2015 Owners Manual

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RC350/RCF_U (OM24636U)
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8-2. Steps to take in an emergency
If your vehicle needs to be towed ............................................524
If you think something is wrong.............................................531
Fuel pump shut off system ...... 532
If a warning light turns on or a warning buzzer
sounds ......................................... 533
If a warning message is displayed .................................... 539
If you have a flat tire (vehicles with a spare
tire)................................................ 560
If you have a flat tire (vehicles without a spare
tire)................................................. 574
If the engine will not start ........ 587
If the shift lever cannot be shifted from P ...........................589
If the electronic key does not operate properly ............. 590
If the vehicle battery is discharged ................................. 593
If your vehicle overheats ..........597
If the vehicle becomes stuck .............................................600 9-1. Specifications
Maintenance data (fuel, oil level, etc.) .................. 604
Fuel information ......................... 620
Tire information........................... 623
9-2. Customization Customizable features ............ 635
9-3. Items to initialize Items to initialize......................... 646
Reporting safety defects for U.S. owners ........................ 648
Seat belt instructions for Canadian owners
(in French).................................. 649
SRS airbag instructions for Canadian owners
(in French)....................................651
What to do if... (Troubleshooting) ............................... 660
Alphabetical index ................................ 6649Vehicle specifications
For owners
Index
For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM
OWNER’S MANUAL” for information rega rding the equipment listed below.
• Navigation system
• Audio/video system• Intuitive parking assist
• Lexus parking assist monitor

15Pictorial index
RC350/RCF_U (OM24636U)
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 135
Locking/unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 135
Opening/closing the side window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 171
Locking/unlocking by using the mechanical key. . . . . . . . . . . . . . . . . . . . . . . . P. 590
Warning lights/warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 534, 541
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 217
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 315
To prevent freezing (windshield wiper de-icer)* . . . . . . . . . . . . . . . . . . . . . . . . P. 421
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 460
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 225
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 225
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 607
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 491
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 614
Winter tires/tire chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 315
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . . . P. 491
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 560, 574
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 475
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 475
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 607
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 597
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 5 41
Headlights/parking lights/daytime running lights/
turn signal lights /side marker lights. . . . . . . . . . . . . . . . . . . . . . . . . . .P. 204, 208
Front fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 216
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3
4
5
Light bulbs of the exterior lights for driving
(Replacing method: P. 512, Watts: P. 619)
*: If equipped
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982. Instrument cluster
RC350/RCF_U (OM24636U)
Multi-information display
Presents the driver with a variety of vehicle data ( P. 1 1 0 )
Displays warning messages in case of a malfunction ( P. 5 3 9 )
Fuel gauge
Engine coolant temperature gauge
Displays the engine coolant temperature. If the engine coolant temperature gauge
indicator ( ) enters the red zone, a buzzer will sound and the indicator will turn red
and start flashing. Also, a warning message will be displayed.
Engine oil temperature gauge
Displays the engine oil temperature. If the engine oil temperature gauge indicator
( ) enters the red zone, the indicator will turn red and start flashing.
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to 122°F
(50°C). Low outside temperature indicator comes on when the ambient temperature
is 37°F (3°C) or lower.
Tachometer
Displays the engine speed in revolutions per minute
Digital speedometer
Analog speedometer
Shift position and gear position
(  P. 199)
Odometer and trip meter display
Odometer:
Displays the total distance the vehicle has been driven
Tr i p m e t e r :
Displays the distance the vehicle has been driven since the meter was last reset. Trip
meters “A” and “B” can be used to record and display different distances indepen-
dently.
Eco driving meter
Displays the vehicle acceleration. The more rapidly the vehicle is accelerated, the
lower the number of blue segments displayed, indicating that your driving is less eco-
friendly. This meter is designed as a guid eline to show the eco-friendliness of your
driving.
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1022. Instrument cluster
RC350/RCF_U (OM24636U)
■Instrument panel brightness adjustment
The instrument panel brig htness levels when the tail ligh ts are on and off can be adjusted
individually. However, when the surroundings ar e bright (daytime, etc.), turning on the tail
lights will not change the instru ment panel brightness. At this time, any adjustments made
to the instrument panel bright ness levels will be applied to both settings at once.
■Dimming the analog speedometer lighting
The analog speedometer lighting will be dimm ed when the ambient light is bright, such
as during the daytime, and SPORT S or SPORT S+ mode is selected.
■Outside temperature display
●In the following situations, the correct outside temperature may not be displayed, or the
display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has change d suddenly (at the entrance/exit of a
garage, tunnel, etc.)
●When “ ” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to your Lexus dealer.
■Pop-up display
●In some situations, such as when a switch operation is pe rformed, a pop-up display will
be temporarily displayed on the multi-information display.
●Some pop-up displays can be set on/off. ( P. 1 1 9 )
■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.
■Customization
The meter display can be customized on the multi-information display. (P. 1 1 0 )
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator of the tachometer enter the red zone, as it represents the
engine speed range which exceeds the maximum safe engine speed.
●In the following situations, the engine may be overheating. In this case, immediately
stop the vehicle in a safe place, and check the engine after it has cooled completely.
(  P. 5 9 7 )
• The engine coolant temperature gauge indi cator ( ) is in the red zone and flash-
ing.
• The engine oil temperature gauge indicato r ( ) is in the red zone and flashing.

1483-2. Opening, closing and locking the doors and trunk
RC350/RCF_U (OM24636U)
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery de pletion is minimized by stopping the elec-
tronic key from receiving radio waves.
■Conditions affe cting operation
The smart access system with push-button start uses weak radio waves. In the following
situations, the communication between th e electronic key and the vehicle may be
affected, preventing the smart access system with push-button start, wireless remote
control and engine immobilizer system from operating properly.
(Ways of coping: P. 5 9 0 )
●When the electronic key battery is depleted
●Near a TV tower, electric powe r plant, gas station, radio station, large display, airport or
other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular ph one, cordless phone or other wireless com-
munication device
●When the electronic key is in contact wi th, or is covered by the following metallic
objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
•Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio
waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or me tallic objects are attached to the rear win-
dow
●When the electronic key is placed near a battery charger or electronic devices
Press twice while pressing and holding
. Confirm that the electronic key indica-
tor flashes 4 times.
While the battery-saving mode is set, the smart
access system with push-button start cannot be
used. To cancel the function, press any of the
electronic key buttons.

1864-1. Before driving
RC350/RCF_U (OM24636U)
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pe dals at the same time while driving, as
this may restrain the engine output.
●Do not use the accelerator pedal or depress the accelerator and brake pedals at the
same time to hold the vehicle on a hill.
■When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move or the
vehicle may accelerate suddenly if the accelerator pedal is ac cidentally 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.
■If you get a flat tire while driving
A flat or damaged tire may cause the follo wing situations. Hold the steering wheel
firmly and gradually depress the brak e 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. 5 6 0 , 5 74 )
■When encountering flooded roads
Do not drive on a road that has flooded after 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.

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4
Driving
RC350/RCF_U (OM24636U)4-6. Driving tips
●Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine coolant
• Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires or purchase a set of tire chains for
the rear tires.
*
Ensure that all tires are the specified size and brand, and that chains match the size
of the tires.
*: Tire chains cannot be mounted on the vehicles with front and rear tires of differing sizes.
●Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine coolant
• Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires.
Ensure that all tires are the specified size and brand.
Winter driving tips
Carry out the necessary preparations and inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Preparation for winter (RC350)
Preparation for winter (RC F)

4627-1. Maintenance and care
RC350/RCF_U (OM24636U)
NOTICE
■When using a high pressure car wash
●When washing the vehicle, do not spray the camera or its surrounding area directly
with a high pressure washer. Shock applie d from high pressure water may cause the
device to not operate normally.
●Do not bring the nozzle tip close to joining parts, boots (rubber or plastic covers), or
connectors of the following as they may be damaged if they come into contact with
high pressure water.
■Hood vent (RC F)
•Drivetrain
• Steering •Suspension
•Brakes
●RC F: Do not point the nozzle of a high pres-
sure washer at the areas shown in the illustra-
tion, as high pressure water may damage the
oil coolers.
When washing the vehicle, do not allow a large
amount of water to enter
the hood vent at once,
such as when using a bucket, etc. or point the
nozzle of a high pressure washer at the hood
vent.
Water may get inside the engine compartment
and affect the engine and other components.

4687-2. Maintenance
RC350/RCF_U (OM24636U)
WA R N I N G
■If your vehicle is not properly maintained
Improper maintenance could result in se rious damage to the vehicle and possible
death or serious injury.
■Handling of the battery
●Engine exhaust, some of its constituents , and a wide variety of automobile compo-
nents contain or emit chemicals known to the State of California to cause cancer and
birth defects and other reproductive harm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by component
wear contain or emit chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm. Avoid exposure and wash any affected area
immediately.
●Battery posts, terminals and related accessories contain lead and lead compounds
which are known to cause brain damage. Wash your hands after handling. ( P. 4 8 7 )

4697-2. Maintenance
7
Maintenance and care
RC350/RCF_U (OM24636U)
General maintenance
Listed below are the general maintenance items that should be performed at
the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommended that any problem you notice should
be brought to the attention of your Lexu s dealer or qualified service shop for
advice.
Engine compartment
ItemsCheck points
BatteryCheck the indicator (if equipped) and connections. ( P. 4 8 7 )
Brake fluidIs the brake fluid at the correct level? ( P. 4 8 6 )
Engine coolantIs the engine coolant at the correct level? ( P. 484)
Engine oilIs the engine oil at the correct level? ( P. 4 8 1 )
Exhaust systemThere should not be any fumes or strange sounds.
Radiator/condenserThe radiator and condenser should be free from for-
eign objects. ( P. 4 8 5 )
Wa s h e r f l u i dIs there sufficient washer fluid? ( P. 4 9 0 )