2018 LEXUS RCF Owners Manual

5297-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises Add coolant if necessary. Water can be used in an emerge ncy if coolant is unavailable.
Start the engine and turn the air conditio ning system on to check that the radi-
ator cooling fans operate and to check for coolant leaks from the radiator or
hoses. The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are operating by checking the fan sound and air flow.
If it is difficult to check these, turn the air conditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer. 5 
Engine (RC350/RC300 AWD) 
Engine (RC300)
Engine (RC F) 
Intercooler (RC300)
6
7

530 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING ■
When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.●
If steam is seen coming from under the h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot. ●
Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans and
belts. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury. ●
RC350/RC300 AWD: While the engine
and radiator are hot, do not loosen or remove
the coolant reservoir cap or coolant inlet cap.
(The coolant inlet cap is located under the
engine cover.)
High temperature steam or coolant could
spray out. ●
RC300: While the engine and radiators are
hot, do not loosen or remove the coolant res-
ervoir cap, coolant inlet cap, or intercooler
coolant reservoir cap.
High temperature steam or coolant could
spray out.
●
RC F: While the engine and radiator are hot,
do not loosen or remove the coolant reser-
voir cap.
High temperature steam or coolant could
spray out.

5317-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises NOTICE ■
When adding engine coolant
Add coolant slowly after the engine has cool ed down sufficiently. Adding cool coolant
to a hot engine too quickly can cause damage to the engine. ■
To prevent damage to the cooling system
Observe the following precautions: ●
Avoid contaminating the coolant with foreig n matter (such as sand or dust etc.).●
Do not use any coolant additive.

532 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Stop the engine. Set the parking br ake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other materi al under the rear wheels to help pro-
vide traction.
Restart the engine.
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 
RC350/RC300
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 TRAC. 1
2
3
4
5

5337-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises 
RC F
Press ( ) to turn off TRAC.
WARNING ■
When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the surrounding
area is clear to avoid striking other vehicl es, objects or people. The vehicle may also
lunge forward or lunge back suddenly as it becomes free. Use extreme caution. ■
When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an acci-
dent resulting in deat h or serious injury.
NOTICE ■
To avoid damaging the transmission and other components ●
Avoid spinning the rear wheels and depressing the accelerator pedal more than nec-
essary. ●
If the vehicle remains stuck even after th ese procedures are performed, the vehicle
may require towing to be freed.

534 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)

535
Vehicle specifications
8
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 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

536
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)8-1. Specifications 
RC350/RC300
* 1
:Unladen vehicle
* 2
: Vehicles with 265/35R19 tires 
RC F
* :Unladen vehicleMaintenance data (fuel, oil level, etc.) Dimensions and weight Overall length 184.8 in. (4695 mm)
Overall width 72.4 in. (1840 mm)
Overall height
* 1
54.9 in. (1395 mm)
Wheelbase 107.5 in. (2730 mm)
Tread
* 1
Front 62.2 in. (1580 mm)
Rear 63.0 in. (1600 mm)
61.8 in. (1570 mm)
* 2
Vehicle capacity weight
(Occupants + luggage) 700 lb. (320 kg)
Overall length 185.2 in. (4705 mm)
Overall width 72.6 in. (1845 mm)
Overall height
* 54.7 in. (1390 mm)
Wheelbase 107.5 in. (2730 mm)
Tread
* Front 61.2 in. (1555 mm)
Rear 61.4 in. (1560 mm)
Vehicle capacity weight
(Occupants + luggage) 700 lb. (320 kg)