2018 LEXUS RC300 brake

3214-6. Driving tips
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Perform the following according to the driving conditions: ●
Do not try to forcibly open a window or move a wiper that is frozen. Pour
warm water over the frozen area to me lt the ice. Wipe away the water imme-
diately to prevent it from freezing. ●
To ensure proper operation of the c limate control system fan, remove any
snow that has accumulated on the air inlet vents in front of the windshield. ●
Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassi s, around the tires or on the brakes.●
Remove any snow or mud from the bottom of your shoes before getting in the
vehicle.
Accelerate the vehicle slowly, keep a sa fe distance between you and the vehicle
ahead, and drive at a reduced spee d suitable to road conditions.●
Park the vehicle and move the shift lever to P without setting the parking
brake. The parking brake may freeze up, preventing it from being released. If
the vehicle is parked without setting the parking brake, make sure to block the
wheels.
Failure to do so may be dangerous because it may cause the vehicle to move
unexpectedly, possibly leading to an accident. ●
If the vehicle is parked without setting the parking brake, confirm that the shift
lever cannot be moved out of P
* .
* : The shift lever will be locked if it is atte mpted to be shifted from P to any other posi-
tion without depressing the brake pedal. If the shift lever can be shifted from P, there
may be a problem with the shift lock sy stem. Have the vehicle inspected by your
Lexus dealer immediately.Before driving the vehicle
When driving the vehicle
When parking the vehicle

378 6-1. Maintenance and care
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Brake ●
Painted brake calipers (if equipped)
• When using detergent, use ne utral detergent. Do not use hard brushes or abrasive
cleaners, as they will damage the paint.
• Do not use detergent on the brake calipers when they are hot.
• Wash detergent off immediately after use. ●
RC F: Rust may form if the vehicle is parked with wet brake pads or disc rotors, causing
them to stick. Before parking the vehicle af ter it is washed, drive slowly and apply the
brakes several times to dry the parts. ■
Bumpers
Do not scrub with abrasive cleaners. ■
Side windows water-repelle nt coating (if equipped)●
The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc. from the side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
• Do not use wax or glass cleaners that co ntain abrasives when cleaning the windows.
• Do not use any metallic objects to remove condensation build up.●
When the water-repellent performance has become insufficient, the coating can be
repaired. Contact your Lexus dealer.
WARNING ■
When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components etc. to catch fire. ■
When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●
When the upper part of the windshield where the raindrop se nsor is located is
touched by hand ●
When a wet rag or similar is held close to the raindrop sensor ●
If something bumps against the windshield ●
If you directly touch the raindrop sensor bo dy or if something bumps into the raindrop
sensorSet the wipers to the intermittent windshield
wipers. (  P. 236)
If AUTO mode is selected, the wipers may
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.

380 6-1. Maintenance and care
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)NOTICE ■
When using a high pressure car wash ●
When washing the vehicle, do not spray the camera or its surrounding area directly
with a high pressure washer. Shock appli ed from high pressure water may cause the
device to not operate normally. ●
Do not bring the nozzle tip close to boots (rubber or resin manufactured cover), con-
nectors or the following parts. The parts may be damaged if they come into contact
with high-pressure water.
■
Hood vent (RC F)• Traction related parts
• Steering parts • Suspension parts
• Brake parts●
RC F: Do not point the nozzle of a high pres-
sure washer at the areas shown in the illustra-
tion, as high pressure water may damage the
oil coolers.
When washing the vehicle, do not allow a large
amount of water to enter the hood vent at once,
such as when using a bucket, etc. or point the
nozzle of a high pressure washer at the hood
vent.
Water may get inside the engine compartment
and affect the engine and other components.

3876-2. Maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 6
Maintenance and care
General maintenance Listed below are the general maintenanc e items that should be performed at
the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommende d that any problem you notice should
be brought to the attention of your Lexu s dealer or qualified service shop for
advice.
Engine compartment Items Check points
Battery Check the indicator (if equipped) and connections.
(  P. 408)
Brake fluid Is the brake fluid at the correct level? (  P. 407)
Engine/intercooler coolant Is the engine/intercooler c oolant at the correct level?
(  P. 404)
Engine oil Is the engine oil at the correct level? (  P. 400)
Exhaust system There should not be any fumes or strange sounds.
Radiator, condenser and
intercooler radiator The radiator, condenser and intercooler radiator
should be free from foreign objects. (  P. 406)
Washer fluid Is there sufficient washer fluid? (  P. 411)

388 6-2. Maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Vehicle interior Items Check points
Accelerator pedal • The accelerator pedal sh ould move smoothly (with-
out uneven pedal effort or catching).
Automatic transmission
“Park” mechanism • When parked on a slope and the shift lever is in P, is
the vehicle securely stopped?
Brake pedal • Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clearance
from the floor? (  P. 547)
• Does the brake pedal have the correct amount of
free play? (  P. 547)
Brakes • The vehicle should not pull to one side when the
brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should no t get too close to the floor
when the brakes are applied.
Head restraints
(RC350/RC300) • Do the head restraints move smoothly and lock
securely?
Indicators/buzzers • Do the indicators and buzzers function properly?
Lights • Do all the lights come on?
Parking brake • Does the parking brake pedal move smoothly?
• When parked on a slope and the parking brake is on,
is the vehicle securely stopped?
Seat belts • Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats • Do the seat controls operate properly?
Steering wheel • Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount of
free play?
• There should not be any strange sounds coming
from the steering wheel.

391
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 6
Maintenance and care 6-3. Do-it-yourself maintenance
Do-it-yourself service precautions If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections. Items Parts and tools
Battery condition
(  P. 408) •Warm water • Baking soda •Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(  P. 407) • SAE J1703 or FMVSS No.116 DOT 3 brake fluid
• SAE J1704 or FMVSS No.116 DOT 4 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/intercooler
coolant level
(  P. 404) • “Toyota Super Long Life Coolan t” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool ant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(  P. 400) • “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses
(  P. 429) • Fuse with same amperage rating as original
Light bulbs
(  P. 432) • Bulb with same number and wattage rating as original
• Phillips-head screwdriver •Flathead sc rewdriver
•Wrench
Radiator, condenser
and intercooler radi-
ator (  P. 406)

Tire inflation pres-
sure (  P. 420) • Tire pressure gauge • Compressed air source
Washer fluid
(  P. 411) • Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

3976-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 6
Maintenance and care 
RC350/RC300 AWD
Engine compartment
Fuse boxes (  P. 429)
Battery (  P. 408)
Engine oil level dipstick
(  P. 400)
Engine coolant reservoir
(  P. 404)
Engine oil filler cap (  P. 402) Brake fluid reservoir (  P. 407)
Washer fluid tank (  P. 411)
Electric cooling fans
Condenser (  P. 406)
Radiator (  P. 406)1
2
3
4
5 6
7
8
9
10

398 6-3. Do-it-yourself maintenance
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)
RC300
Fuse boxes (  P. 429)
Battery (  P. 408)
Engine oil level dipstick
(  P. 400)
Engine oil filler cap (  P. 402)
Engine coolant reservoir
(  P. 404)
Brake fluid reservoir (  P. 407) Washer fluid tank (  P. 411)
Electric cooling fans
Condenser (  P. 406)
Intercooler radiator (  P. 406)
Radiator (  P. 406)
Intercooler coolant reservoir
(  P. 404)1
2
3
4
5
6 7
8
9
10
11
12