engine coolant LEXUS RC F 2017 Owner's Manual

6328-2. Steps to take in an emergency
The coolant level is satisfactory if it is between the full (“FULL” or “F”) and low
(“LOW” or “L”) lines on the reservoir.
Reservoir
“FULL” or “F”
“LOW” or “L”4
1
2
3
Engine (RC350/RC300)Engine (RC200t)
Engine (RC F)Intercooler (RC200t)

6338-2. Steps to take in an emergency
8
When trouble arises
Add coolant if necessary.
Water can be used in an emergency 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)Engine (RC200t)
Engine (RC F)Intercooler (RC200t)
6
7

6348-2. Steps to take in an emergency
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: While the engine and radi-
ator are hot, do not loosen or remove the
coolant reservoir cap or radiator cap. (The
radiator cap is located under the engine
cover.)
High temperature steam or coolant could
spray out.
●RC200t: While the engine and radiators are
hot, do not loosen or remove the coolant res-
ervoir cap, radiator cap, or intercooler cool-
ant 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.

6358-2. Steps to take in an emergency
8
When trouble arises
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cooled 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.

6489-1. Specifications
■Spark plug
Cooling system
Capacity
RC350/
RC30010.1 qt. (9.6 L, 8.4 Imp. qt.)
RC200t
Gasoline engine
8.5 qt. (8.0 L, 7.0 Imp. qt.)
Intercooler
3.3 qt. (3.1 L, 2.7 Imp. qt.)
RC F12.3 qt. (11.6 L, 10.2 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
RC350/RC300RC200tRC F
MakeDENSO
FK20HBR11NGK DILFR7K9GDENSO
FK20HBR-J8
Gap0.043 in. (1.1 mm)0.035 in. (0.9 mm)0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
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.

6689-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of automatic transmission,
power steering, power brakes, power windows, power
seats, radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1
* below
Production options weight
The combined weight of in stalled regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they re place, not previously con-
sidered in curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated

708Alphabetical index
Engine ....................................................... 643ACCESSORY mode..................... 208
Compartment....................................... 501
Engine switch .......................................207
Hood ........................................................ 497
How to start the engine ..................207
Identification number .......................642
If the engine will not start............... 620
Ignition switch (engine switch)....207
Overheating ........................................ 630
Engine coolant.......................................509 Capacity ................................................ 648
Checking............................................... 509
Preparing and checking before winter ..................................... 331
Engine coolant temperature gauge .............................................. 96, 102
Engine immobilizer system ..................79
Engine oil ................................................. 504 Capacity .................................................644
Checking............................................... 504
Preparing and checking before winter ..................................... 331
Engine oil maintenance data ........... 507
Engine oil temperature gauge ......... 102
Engine switch ......................................... 207
Enhanced VSC ..................................... 298
EPS (Electric Power Steering) ....... 299 Warning light ...................................... 566
Event data recorder (EDR) ...................10
Expert mode ........................................... 302 First-aid kit storage belt..................... 454
Flat tire
Vehicles with a spare tire .............. 592
Vehicles with emergency tire puncture repair kit ........................ 606
Floor mats................................................... 30
Fluid Automatic transmission .................. 649
Brake..........................................................651
Washer .....................................................516
Fog lights...................................................232 Replacing light bulbs ...................... 550
Switch ...................................................... 232
Footwell light .......................................... 448 Wattage ................................................. 657
Front fog lights........................................232 Replacing light bulbs ...................... 550
Switch ...................................................... 232
Front passenger occupant classification system ............................. 51
Front seats ................................................. 164 Adjustment..............................................164
Cleaning.................................................485
Correct driving posture .....................32
Driving position memory.................169
Head restraints ..................................... 173
Jam protection function....................165
Seat heaters .......................................... 446
Seat position memory .......................169
Seat ventilators.................................... 447F

710Alphabetical index
Hands-free system (for cellular phone) ........................... 397
HD Radio
® system .............................. 363
Head restraints ........................................ 173
Headlight cleaner................................. 233
Headlights ............................................... 224 Automatic High Beam system .................................................. 227
Light switch ........................................... 224
Replacing light bulbs ....................... 550
Heaters Air conditioning system ..................434
Heated steering wheel ....................445
Outside rear view mirrors .............439
Seat heaters ..........................................446
Hill-start assist control ........................ 298
Hood .......................................................... 497 Open ........................................................ 497
Hooks Cargo hooks ........................................454
Coat hooks .......................................... 459
Retaining hooks (floor mat) .............30
Horn ............................................................. 177 I/M test ......................................................494
Identification
Engine ..................................................... 642
Vehicle ......................................................641
Ignition switch (engine switch) ........207
Illuminated entry system ................... 450
Immobilizer system ................................. 79
Indicators ...................................................... 91
Initialization Maintenance ........................... 489, 507
Meter ................................................ 114, 126
Moon roof .............................................. 188
Multi-information display........ 114, 126
Power windows....................................184
Tire pressure warning system ................................ 518
Initiators (tire pressure warning system) ................................ 529
Inside rear view mirror......................... 178
Instrument panel light control ...........................................100, 107
Intercooler ................................................. 511
Intercooler coolant.............................. 509 Capacity.................................................648
Checking .............................................. 509
Preparing and checking before winter ...................................... 331
Interior lights ...........................................449
Intuitive parking assist .........................269
HI