2019 LEXUS RC300 belt

3097-2. Steps to take in an emergency
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When trouble arises
1Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.
2
If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3
After the engine has cooled down
sufficiently, inspect the hoses and
radiator core (radiator) for any
leaks.
 RC350/RC300 AWD
WARNING
●When working with the battery, always
wear safety glasses and take care not
to allow any battery fluids (acid) to
come into contact with skin, clothing
or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes
into contact with the skin or eyes,
immediately wash the affected area
with water and seek medical attention.
Place a wet sponge or cloth over the
affected area until medical attention
can be received.
●Always wash your hands after handling
the battery support, terminals, and
other battery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fans or engine drive
belt.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.66) is in the red zone
or a loss of engine power is expe-
rienced. (For example, the vehicle
speed does not increase.)
 “Engine Coolant Temp High Stop
in a Safe Place See Owner's
Manual” is shown on the
multi-information display.
 Steam comes out from under the
hood.
Correction procedures

3117-2. Steps to take in an emergency
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When trouble arises
5Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
 Engine (RC350/RC300 AWD)
 Engine (RC300)
 Intercooler (RC300)
6
Start the engine and turn the air
conditioning system on to check
that the radiator cooling fans oper-
ate 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 oper- ating by checking the fan sound and air
flow. If it is difficult to check these, turn the
air conditioning system on and off repeat-
edly.
(The fans may not oper
ate in freezing tem-
peratures.)
7If the fans are not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the
nearest Lexus dealer.
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
hood, do not open the hood until the
steam has subsided. The engine com-
partment 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 serious injury.

3178-1. Specifications
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Vehicle specifications
This number is also on the Certification
Label.
■Engine number
The engine number is located as
shown.
RC350/RC300 AWD
RC300
■RC350/RC300 AWD
■RC300
Engine
Model3.5 L 6-cylinder (2GR-FKS) engine
Type6-cylinder V type, 4-cycle, gasoline
Bore and stroke3.70  3.27 in. (94.0  83.0 mm)
Displacement210.9 cu. in. (3456 cm3)
Drive belt tensionAutomatic adjustment
Model2.0 L 4-cylinder (8AR-FTS) engine
Type4-cylinder in line, 4-cycle, gasoline (with tur-
bocharger)
Bore and stroke3.39  3.39 in. (86.0  86.0 mm)
Displacement121.9 cu. in. (1998 cm3)
Drive belt tensionAutomatic adjustment

3328-1. Specifications
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Wheel diameter
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective purchasers of Lexus vehicles
with information on uniform tire quality
grading.
Your Lexus dealer will help answer any questions you may have as you read this
information.
■DOT quality grades
All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.
For example: Treadwear 200 Traction AA
Temperature A
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would wear
one and a half (1 - 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use.
Performance may differ significantly from
the norm due to variatio ns in driving habits,
service practices and differences in road
characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
Tire section names
Uniform Tire Quality Grading
C
A
B
C
D
E
F
G
H
I
J
K

3478-2. Customization
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Vehicle specifications
■Illumination ( P.215)
■Seat belt reminder ( P.286)
■Vehicle customization●When the smart acc ess system with
push-button start is off, the entry unlock
FunctionDefault settingCustomized setting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation after the engine
switch is turned offOnOff——O
Operation when the doors
are unlockedOnOff——O
Operation when you
approach the vehicle with the
electronic key on your person
OnOff——O
Remote Touch pad lightOnOff——O
Time elapsed before the outer
foot 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 your person
OnOff——O
Operation of the outer foot
lights when the doors are
unlocked with the power
door lock switch
OnOff——O
Operation of the outer foot
lights when a door is openedOnOff——O
Fading out of the outer foot
lights when they turn offLongShort——O
ABC
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff——O
ABC

359
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9
For owners
For owners
.9-1. For ownersReporting safety defects for U.S. owners ........................................ 360
Seat belt instructions for Cana- dian owners (in French)....... 360
SRS airbag instructions for Cana- dian owners (in French)....... 362
Headlight aim instructions for Canadian owners (in French)
........................................................ 368

3609-1. For owners
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9-1.For owners
Déroulez la sangle diagonale de
telle sorte qu'elle passe bien sur
l'épaule, sans pour autant être en
contact avec le cou ou glisser de
l'épaule.
 Placez la sangle abdominale le plus
bas possible sur les hanches.
 Réglez la position du dossier de
siège. Asseyez-vous le dos droit et
calez-vous bien dans le siège.
 Ne vrillez pas la ceinture de sécu-
rité.
Reporting safety defects for
U.S. owners
If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you
should immediately inform the
National Highway Traffic Safety
Administration (NHTSA) in addi-
tion to notifying the Lexus Division
of Toyota Motor Sa les, U.S.A., Inc.
(Toll-free: 1-800-25-LEXUS).
If NHTSA receives similar com-
plaints, it may open an investiga-
tion, and if it finds that a safety
defect exists in a group of vehicles,
it may order a recall and remedy
campaign. However, NHTSA can-
not become involved in individual
problems between you, your dealer,
or Lexus Division of Toyota Motor
Sales, U.S.A., Inc.
To contact NHTS A, you may call
the Vehicle Safety Hotline toll-free
at 1-888-327-4236 (TTY:
1-800-424-9153); go to
http://www.safercar.gov ; or write
to: Administrator, NHTSA, 1200
New Jersey Ave, S.E., Washington,
DC 20590. You can also obtain
other information about motor
vehicle safety from http://www.saf-
ercar.gov.
Seat belt instructions for
Canadian owners (in French)
The following is a French explana-
tion of seat belt instructions
extracted from the seat belt section
in this manual.
See the seat belt section for more
detailed seat belt instructions in
English.
Utilisation correcte des cein-
tures de sécurité

3711-1. What to do if... (Troubleshooting)
RC350AWD_RC350_RC300AWD_RC30
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 Is the engine switch in IGNITION
ON mode?
If you cannot release the shift lever by
depressing the brake pedal with the engine
switch in IGNITION ON mode. ( 
P.129)
It is locked automatically to prevent
theft of the vehicle. ( P.125)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( 
P.111)
The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is not running) for
a period of time. ( P.127)
 The seat belt reminder light is flash-
ing
Are the driver and the front passenger
wearing the seat belts? ( 
P.286)
The parking brake indicator is on
Is the parking brake released? ( P.134)
Depending on the situation, other
types of warning buzzer may also
sound. (P.282, 290)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
(
P.58)
Do one of the following to deactivate
or stop the alarm:
 Unlock the doors.
 Open the trunk using the entry
function or wireless remote control.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( 
P.290)
When a warning light turns on or a
warning message is displayed, refer
to P.282, 290.
The steering wheel cannot be
turned after the engine is
stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed