check engine light LEXUS RC F 2017 User Guide

2124-2. Driving procedures
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in ACCESSORY or IGNITION ON mode for long
periods of time without the engine running.
●RC350/RC300/RC200t: If “ACCESSORY” or “IGNITION ON” is displayed on
the meters while the engine is not running, the engine switch is not off. Exit the vehicle
after turning the engine switch off.
●RC F: If the analog speedometer is illu minated and the engine is not running, the
engine switch is not off. Exit the vehicle after turning the engine switch off.
However, if the welcome illumination is operating, the analog speedometer will be
illuminated even though the engine sw itch is off. (Welcome illumination: →P. 107)
●Do not stop the engine when the shift lever is in a position other than P. If the engine is
stopped in another shift lever position, the engine switch will not be turned off but
instead be turned to ACCESSORY mode. If the vehicle is left in ACCESSORY
mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle checked
by your Lexus dealer immediately.
■Symptoms indicating a malfun ction with the engine switch
If the engine switch seems to be operating somewhat differen tly than usual, such as the
switch sticking slightly, ther e may be a malfunction. Contact your Lexus dealer immedi-
ately.

2204-2. Driving procedures
The lever will return to its original position immediately after operation.Right turn
Lane change to the right (move the
lever partway and release it)
The right hand signals will flash 3 times.
Lane change to the left (move the
lever partway and release it)
The left hand signals will flash 3 times.
Left turn
■If the turn signals do not stop flashing af ter turning left or right, or if you want
to stop them flashing
Operate the lever in the opposite direct ion to either position or . If you
move the lever to either position or , the selected turn signals will flash.
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing befo re a lane change has been performed
Operate the lever again.
■Customization
The number of times the turn signals flas h during a lane change can be changed.
(Customizable feature →P. 673)
Turn signal lever
Operating instructions
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2394-3. Operating the lights and wipers
4
Driving
■The windshield wiper and washer can be operated when
The engine switch is in IGNITION ON mode.
■Dripping prevention wiper sweep
After performing a washing and wiping operation several times, the wipers operate one
more time after a short delay to prevent dripping.
However, this final wiper operation will not be performed while driving.
■Effects of vehicle speed on wiper operation (vehicles with rain-sensing windshield wip-
ers)
Vehicle speed affects the following even when the wipers are not in AUTO mode.
●Intermittent wiper interval
●Wiper operation when the washer is being used (delay until drip prevention wiper
sweep occurs)
With low speed windshield wi per operation selected, wiper operation will be switched
from low speed to intermittent wiper operation only when the vehicle is stationary.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper is turned to AUTO mode wh ile the engine switch is in IGNITION ON
mode, the wipers will operate once to show that AUTO mode is activated.
●If the temperature of the raindrop sensor is 185°F (85°C) or higher, or -22°F (-30°C)
or lower, automatic operation may not occur. In this case, operate the wipers in any
mode other than AUTO mode.
■When the windshield wipers are in tempor ary operation (vehicles with rain-sensing
windshield wipers)
AUTO mode cannot be activa ted even if is pressed.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the windshield
washer fluid reservoir.
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is adopted. It may not oper-
ate properly when sunlight from the rising or
setting of the sun inte rmittently strikes the
windshield, or if bugs etc. are present on the
windshield.

479
Maintenance and care7
7-1. Maintenance and careCleaning and protecting the vehicle exterior ............... 480
Cleaning and protecting the vehicle interior..................485
7-2. Maintenance Maintenance requirements ........................... 488
General maintenance............... 491
Emission inspection and maintenance (I/M)
programs .................................... 494
7-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 495
Hood ............................................... 497
Positioning a floor jack ............498
Engine compartment ................ 501
Tires ...................................................517
Tire inflation pressure................ 531
Wheels ........................................... 534
Air conditioning filter ............... 536
Electronic key battery ..............538
Checking and replacing fuses ..............................................540
Light bulbs..................................... 543

5207-3. Do-it-yourself maintenance
■When to replace your vehicle’s tires
Tires should be replaced if:
●The treadwear indicators are showing on a tire.
●You have tire damage such as cuts, splits, cracks deep enough to expose the fabric, and
bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or location of
a cut or other damage
If you are not sure, consult your Lexus dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the tire
pressure warning system will not work proper ly. After driving for about 20 minutes, the
tire pressure warning light blinks for 1 minu te and stays on to indicate a system malfunc-
tion.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has seldom
or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning syst em does not replace routine tire inflation pressure checks.
Make sure to check tire inflat ion pressure as part of your routine of daily vehicle checks.
■When rotating the tires
Make sure that the engine switch is off. If the tires are rotated while the engine switch is in
IGNITION ON mode, the tire position information will not be updated.
If this accidentally occurs, either turn the engine switch to off and then to IGNITION ON
mode, or initialize the system after checking th at the tire pressure is properly adjusted.
■Low profile tires
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when comp ared to standard tires. Be sure to use
snow tires or tire chains on snowy and/or icy roads and drive carefully at a speed appro-
priate for road and weather conditions.

5678-2. Steps to take in an emergency
8
When trouble arises
*1: Parking brake engaged warning buzzer (RC350/RC300/RC200t):→ P. 575
*2: Open door warning buzzer:
→ P. 573
*3: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfast ened after 24 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the se at belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer soun ds to alert the front passenger that his or
her seat belt is not fastened. The buzzer so unds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 se conds, the buzzer will
sound intermittently for 10 se conds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different to ne for 20 more seconds.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( →P. 568)
•Flat tire ( →P. 592, 606)
→ Adjust the tire inflation pres sure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by your Lexus dealer.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pressure warning system
→ Have the system checked by your Lexus dealer.
Warning lightWarning light/Details/Actions

5688-2. Steps to take in an emergency
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (door), side impact sensors (front), side impact sensors (rear), driver’s
seat position sensor, driver’s seat belt buckle switch, front passenger occupant classifica-
tion system, “AIR BAG ON” indicator light, “A IR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioners, airbags, interconnecting wiring and
power sources. (→ P. 41)
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passenger
is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fu el tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficien t or the voltage temporarily drops, the
electric power steering system warning li ght may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on
Check the tire inflation pressu re and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not tu rn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with the spare tire (if equipped)
The spare tire is not equipped with a tire pr essure warning valve and transmitter. If a tire
goes flat, the tire pressure warning light will not turn off even though the flat tire has been
replaced with the spare tire.
■Conditions that the tire pressure wa rning system may not function properly
→ P. 522
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mo de, have it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.

5818-2. Steps to take in an emergency
8
When trouble arises
RC F only
(If equipped)
Indicates that the TVD (Torque Vectoring Differential)
system has overheatedThis message may be disp layed when driving under
extremely high load conditions such as the following:
• Continuously driving at high speeds or through
sharp turns
• If either right or left rear tire loses traction and spins
continuously
A buzzer also sounds.
→ Drive the vehicle for a while, while avoiding
extremely high load conditions.
Indicates a malfunction in the brake override system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates that engine oil level is low
This message may ap pear if the vehicle is stopped on a
slope. Move the vehicle to a level surface and check to
see if the message disappears.
A buzzer also sounds.
→ Check the level of engine oil, and add if necessary.
Indicates a malfunction in th e automatic headlight level-
ing system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Indicates a malfunction in:
• The Automatic High Beam system (if equipped); or
• The LED headlight system
A buzzer also sounds.
→ Have the vehicle inspected by your Lexus dealer.
Warning messageDetails/Actions

5858-2. Steps to take in an emergency
8
When trouble arises
RC200t only
Indicates that the engine oil should be changed. (After
the engine oil is changed and the message has been
reset.)
→Check and change the engine oil, and oil filter by
your Lexus dealer. After chan ging the engine oil, the
message should be reset.
(U.S.A. only)
Indicates that all maintenanc e is required to correspond
to the driven distance on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km) after
the message has been reset.
(The indicator will not work properly unless the message
has been reset.)
→ Perform the necessary maintenance. Please reset
the message after the maintenance is performed
(→ P. 489)
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
→ Turn the high beam on and press the Automatic
High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-collision brake system
operation is stopped
Operation of the pre-collision brake assist and the
steering control (if equipped) of the PCS (Pre-Colli-
sion system) are also stopped.
→ Turn the VSC on. ( →P. 301)
(If equipped)
Indicates that the PCS (Pre-C ollision System) is not cur-
rently functional because the grille cover or the sensor is
dirty
→ Check the grille cover and the sensor and clean
them if they are dirty.
Warning messageDetails/Actions
(Flashes)

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.