Page 592 of 640
5928-2. Steps to take in an emergency
RC300h_EE(OM24740E)
Stop the hybrid system. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels to help pro-
vide traction.
Restart the hybrid system.
Shift the shift lever to D or R and rele ase the parking brake. Then, while exer-
cising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt or snow:
Press to turn off TRC.
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2
3
4
5
Page 599 of 640
![LEXUS RC300H 2017 Owners Manual 599
9
9-1. Specifications
Vehicle specifications
RC300h_EE(OM24740E)
■Oil capacity (Drain an d refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the e LEXUS RC300H 2017 Owners Manual 599
9
9-1. Specifications
Vehicle specifications
RC300h_EE(OM24740E)
■Oil capacity (Drain an d refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the e](/manual-img/36/58021/w960_58021-598.png)
599
9
9-1. Specifications
Vehicle specifications
RC300h_EE(OM24740E)
■Oil capacity (Drain an d refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the engine
oil. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Lexus recom-
mends the use of approved “Toyota Genuine Motor Oil”. Another motor oil of
matching quality can also be used.
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving ”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or IL SAC multigrade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your Lexus
vehicle at manufacturing, and the
best choice for good fuel economy
and good starting in cold weather.
If SAE 0W-20 oil is not available,
SAE 5W-30 oil may be used. How-
ever, it should be replaced with SAE
0W-20 at the next oil change.
If you use SAE 10W-30 or a higher
viscosity engine oil in extremely low
temperatures, the engine may
become difficult to start, so SAE
0W-20 or 5W-30 engine oil is rec-
ommended.
Lubrication system
With filter4.5 L (4.8 qt., 4.0 Imp. qt.)
Without filter4.1 L (4.3. qt., 3.6 Imp. qt.)
Temperature range anticipated before
next oil change
Preferred
Page 602 of 640
6029-1. Specifications
RC300h_EE(OM24740E)
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact any authorized Lexus dealer or repairer, or
another duly qualified an d equipped professional.
Electrical system
12-volt battery
Open voltage at 20C (68 F):
12.0 V or higher If the voltage is lower than the standard value, chargethe battery.
(Voltage is checked 20 minutes after the hybrid system and all lights are turned off.)
Charging rates5 A max.
Hybrid transmission
Fluid capacity*3.8 L (4.0 qt., 3.3 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toy ota Genuine ATF WS” may damage the hybrid
transmission of your vehicle.
Page 605 of 640
605
9
9-1. Specifications
Vehicle specifications
RC300h_EE(OM24740E)
Light bulbs
Light bulbsWType
Exterior
Front turn signal lights (bulb type)21A
Rear turn signal lights21A
Back-up lights16B
Interior
Vanity lights8B
Footwell lights3.8B
Trunk light5B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
Page 613 of 640

613
9
9-2. Customization
Vehicle specifications
RC300h_EE(OM24740E)
■Turn signal lever ( P. 229)
*1: After flashing the turn signal lights when turning left or right while this function is off
and the turn signal lever is moved to the fi rst position in the direction of the flashing
light, the turn signal lights can be selected to be flashing or off.
*2: The turn signal lights keep flashing if the turn signal lever is moved to the first position
in the direction of flashing light.
*3: The turn signal lights will be off if the turn signal lever is moved to the first position in
the direction of flashing light.
■Automatic light control system ( P. 232)
FunctionDefault settingCustomized setting
The number of times the turn sig- nal lights flash automatically
when the turn signal lever is moved to the first position duringa lane change*1
3
5
——O7
Off*2
Off*3
123
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before headlightsautomatically turn off30 seconds
60 seconds
——O90 seconds
120 seconds
123
Page 615 of 640
615
9
9-2. Customization
Vehicle specifications
RC300h_EE(OM24740E)
■Illumination ( P. 446)
*: If equipped
FunctionDefault settingCustomized setting
Time elapsed before the interior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation after the powerswitch is turned offOnOff——O
Operation when the doors areunlockedOnOff——O
Operation when you approach
the vehicle with the electronic key on your personOnOff——O
Ambient lights and RemoteTouch pad light*OnOff——O
Time elapsed before the outerfoot lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle with the electronic key on yourperson
OnOff——O
Operation of the outer foot lights
when the doors are unlocked with the power door lock switchOnOff——O
Operation of the outer foot lightswhen a door is openedOnOff——O
Fading out of the outer foot lights
when they turn offLongShort——O
123
Page 616 of 640

6169-2. Customization
RC300h_EE(OM24740E)
■Vehicle customization
●When the speed-detecting automatic door lock and shift-linked automatic door lock are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, both side the doors will be
locked. • If the vehicle is started with both side doors locked, the speed-detecting automaticdoor lock will not operate.
• If the vehicle is started with any door unlocked, the speed-detecting automatic door lock will operate.
●When the smart entry & start system is off, the entry unlock function cannot be custom-ized.
●When the doors remain closed after unlocking the doors and the timer activated auto-
matic door lock function activates, signals will be generated in accordance with the operational signal (Emergency flashers) function setting.
●Some settings can be changed using a switch or the audio system screen. If a setting is
changed using a switch, the changed setting will not be reflected on the audio system screen until the power switch is turned off and then to ON mode.
■When customizing using the Remote Touch or Lexus Display Audio controller
Stop the vehicle in a safe place, apply the parking brake, and shift the shift lever to P. Also, to prevent 12-volt battery discharge, leave the hybrid system operating while customiz-ing the features.
WARNING
■During customization
As the hybrid system needs to be operating during customization, ensure that the vehi- cle is parked in a place with adequate ventilation. In a closed area such as a garage,exhaust gases including harmful carbon monoxide (CO) may collect and enter the
vehicle. This may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent 12-volt battery discharge, ensure that the hybrid system is operating while customizing features.
Page 620 of 640

620
RC300h_EE(OM24740E)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional. ( P. 140)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional immediately. ( P. 143)
●Is the electronic key battery weak or depleted? (P. 511)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( P. 216)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly due to the condition of the radio wave.
( P. 157)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open the trunk as us ual. Take the key out from the trunk.
( P. 152)
If you have a problem, check the following before contacting any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The trunk lid is closed with the electronic key left inside