2018 LEXUS RC350 Differential fluid

2004-1. 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 the 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.

3114-5. Using the driving support systems
4
Driving
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
■Automatic cancelation of the selected TVD control mode
SLALOM and TRACK mode are canceled when the engine switch is turned off. When
the engine switch is turned to IGNITION ON mode, the TVD system will be in STAN-
DARD mode.
■Automatic disabling of the TVD system
If a malfunction is detected in the TVD system, a warn ing message will be displayed on
the multi-information display ( P. 474) and the TVD system will be disabled automati-
cally. If the system is disabled, driving force will not be distributed by the TVD but through
normal differential operation.
■To protect the system
The TVD fluid temperature may become excessively high when driving for a long time
under extremely high load conditions. In th is case, a warning message will be displayed
on the multi-information display. ( P. 474)
WARNING
■Cautions regarding the use of the system
The driver is solely responsible for safe driv ing. Do not overly rely on the TVD system.
Always drive safely, taking care to observe your surroundings.

5458-1. Specifications
8
Vehicle specifications
RC350_RC300 AWD_RC300_RC F_U(OM24748U)
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Electrical system
Battery
Open voltage at 68 F
(20 C):12.3 V or higher
If the voltage is lower than the standard value, charge
the battery.
(Voltage is checked 20 minutes after the engine and all
lights are turned off.)
Charging rates5 A max.
Automatic transmission
Fluid capacity*
RC35010.0 qt. (9.5 L, 8.4 Imp. qt.)
RC350AWD/RC300
AWD10.6 qt. (10.0 L, 8.8 Imp. qt.)
RC3009.2 qt. (8.7 L, 7.7 Imp. qt.)
RC F11.8 qt. (11.2 L, 9.9 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity 0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil type and viscosityHypoid gear oil API GL-5
Above 0F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90

5468-1. Specifications
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
RC350/RC300 (vehicles without LS D [Limited Slip Differential])
RC350/RC300/RC F (vehicles with LSD [Limited Slip Differential])
RC F (vehicles with TVD [Torque Vectoring Differential])
*1: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differen tial Gear Oil” or an equivalent oil of
matching quality to satisfy the above specification. Please contact your Lexus dealer
for further details.
*2: Torque transfer modules are located on the ri ght and left sides of the rear differential
unit.
*3: Using torque transfer module fluid other than “Toyota Genuine ATF WS” may cause deterioration of performance, vibration, or ultimately damage the TVD system of your
vehicle.
Rear differential
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential Gear Oil LT
75W-85 GL-5 or equivalent
*1
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential Gear Oil LX
75W-85 GL-5 or equivalent
*1
DifferentialTorque transfer module*2
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Left-hand side:
0.74 qt. (0.70 L, 0.62 Imp. qt.)
Right-hand side:
0.74 qt. (0.70 L, 0.62 Imp. qt.)
Oil type and viscos-
ity
Toyota Genuine Differential
Gear Oil LT
75W-85 GL-5 or equiva-
lent
*1
Toyota Genuine ATF WS*3