Page 585 of 776

5857-1. Maintenance and care
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
■Note for a smart entry & start system
●If the door handle becomes wet while the electronic key is within the effective range, the door may lock and unlock repeatedly. Place the key in a position 2 m (6 ft.) or more
separate from the vehicle while the vehicle is being washed. (Take care to ensure that the key is not stolen.)
●If the electronic key is inside the vehicle and a door handle becomes wet during a car
wash, a buzzer will sound outside the vehicle. To turn off the alarm, lock all the doors.
●Set the electronic key to battery-saving mode to disable the smart entry & start system. ( P. 169)
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent as used on the paint.
●Do not use detergent on the wheels when th ey are hot, for example after driving for long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc., from the front 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 any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
Page 586 of 776

5867-1. Maintenance and care
RX350/RX200t_EE_OM48F32E
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 sensor 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 body or if something bumps into the raindropsensor
■Precautions regarding the exhaust pipes and rear bumper diffusers
Exhaust gasses cause the exhaust pipes and rear bumper diffusers to become quite hot.
When washing the vehicle, be careful not to touch the pipes and diffusers until they have cooled sufficiently, as touching hot exhaust pipes and rear bumper diffusers cancause burns.
■Precaution regarding the rear bumper with Blind Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If this occurs, consult any authorized Lexus deal er or repairer, or another duly qualified
and equipped professional.
Set the wiper switch to off.
If the wiper switch is in “AUTO”, 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.
Off
Page 587 of 776

5877-1. Maintenance and care
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
NOTICE
■To prevent paint deterioration and corrosion on the body and components (aluminum wheels, etc.)
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast • After driving on salted roads• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paint surface • After driving in an area contaminated wi th soot, oily smoke, mine dust, iron pow- der or chemical substances
• If the vehicle becomes heavily soiled with dust or mud • If liquids such as benzene and gaso line are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with low humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic subs tances or scrub with a hard brush. This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.Wax may cause damage to the lenses.
■When using an automatic car wash (vehicle s with rain-sensing windshield wipers)
Set the wiper switch to the off position. If the wiper switch is in “AUTO”, the wipers may operate and the wiper blades may bedamaged.
Page 588 of 776
5887-1. Maintenance and care
RX350/RX200t_EE_OM48F32E
NOTICE
■When using a high pressure car wash
●When washing the vehicle, do not let water of the high pressure washer hit directly or the vicinity of the camera. Due to the shock from the high pressure water, it is possible
the device may not operate as normal.
●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.
• Traction related parts • Steering parts
•Suspension parts • Brake parts
●Do not point the nozzle of a high pressurewasher at the areas shown in the illustration,as high pressure water may damage the oil
cooler.
Page 589 of 776

5897-1. Maintenance and care
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
●Remove dirt and dust using a vacuum cleaner. Wipe dirty surfaces with a cloth
dampened with lukewarm water.
●If dirt cannot be removed, wipe it off with a soft cloth dampened with neutral
detergent diluted to approximately 1%.
Wring out any excess water from the cloth and thoroughly wipe off remaining
traces of detergent and water.
●Remove dirt and dust using a vacuum cleaner.
●Wipe off any excess dirt and dust with a soft cloth dampened with diluted
detergent.
Use a diluted water solution of appr oximately 5% neutral wool detergent.
●Wring out any excess water from the cloth and thoroughly wipe off all remain-
ing traces of detergent.
●Wipe the surface with a dry, soft cloth to remove any remaining moisture.
Allow the leather to dry in a shaded and ventilated area.
●Remove dirt and dust using a vacuum cleaner.
●Wipe it off with a soft cloth dampened with neutral detergent diluted to
approximately 1%.
●Wring out any excess water from the cloth and thoroughly wipe off remaining
traces of detergent and water.
Cleaning and protecting the vehicle interior
The following procedures will help prot ect your vehicle’s interior and keep it
in top condition:
Protecting the vehicle interior
Cleaning the leather areas
Cleaning the synthetic leather areas
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5907-1. Maintenance and care
RX350/RX200t_EE_OM48F32E
■Caring for leather areas
Lexus recommends cleaning the in terior of the vehicle at least twice a year to maintain the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a sponge or brush to apply the foam. Rub in overlapping circles. Do not use water. Wipe dirty surfaces and letthem dry. Excellent results are obtained by keeping the carpet as dry as possible.
■Seat belts
Clean with mild soap and lukewarm water us ing a cloth or sponge. Also check the belts periodically for excessive wear, fraying or cuts.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in the vehicle.Doing so may cause electrical components, etc., to malfunction or catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet. ( P. 42)
An electrical malfunction may cause the airbags to deploy or not function properly, resulting in death or serious injury.
●Vehicles with wireless charger:
Do not let the wireless charger ( P. 569) get wet. Failure to do so may cause the charger to become hot and cause burns or could cause electric shock resulting indeath or serious injury.
■Cleaning the interior (esp ecially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect off the wind- shield, obstructing the driver’s view and leading to an accident, resulting in death or
serious injury.
Page 591 of 776

5917-1. Maintenance and care
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
NOTICE
■Cleaning detergents
●Do not use the following types of detergent, as they may discolor the vehicle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances su ch as benzene or gasoline, alkaline or acidic solutions, dye, and bleach• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alcohol
●Do not use polish wax or polish cleaner. The instrument panel’s or other interior part’s painted surface may be damaged.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather surfaces:
●Remove any dust or dirt from leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park the vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or containing wax on the upholstery, as theymay stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water. Vehicle systems such as the audio system may be damaged if water comes into contactwith electrical components such as the au dio system above or under the floor of the
vehicle. Water may also cause the body to rust.
■When cleaning the inside of the windshield (vehicles with Lexus Safety System+)
Do not allow glass cleaner to contact the lens. Also, do not touch the lens.
( P. 293)
■Cleaning the inside of the rear window
●Do not use a glass cleaner to clean the rear window, as this may cause damage to the
rear window defogger heater wires or antenna. Use a cloth dampened with luke- warm water to gently wipe the window clean. Wipe the window in strokes runningparallel to the heater wires or antenna.
●Be careful not to scratch or damage the heater wires or antenna.
Page 592 of 776

592
RX350/RX200t_EE_OM48F32E
7-2. Maintenance
Scheduled maintenance should be performed at specified intervals according to
the maintenance schedule.
For full details of your maintenance schedule , refer to the “Lexus Service Booklet” or
“Lexus Warranty Booklet”.
What about do-it-yourself maintenance?
Many maintenance items are easy to do your self if you have a little mechanical ability and a few basic automotive tools.
Note, however, that some maintenance task s require special tools and skills. These are best performed by qualified technicians. Even if you’re an experienced do-it-your-self mechanic, we recommend that repairs and maintenance be conducted by any
authorized Lexus dealer or repairer, or another duly qualified and equipped profes- sional. Any authorized Lexus dealer or repairer will keep a record of maintenance,which could be useful should you ever require Warranty Service. Should you choose
to select a qualified and equipped professional other than an authorized Lexus repairer to service or maintain your vehi cle, we recommend that you request that a
record of maintenance be kept.
Maintenance requirements
To ensure safe and economical drivin g, day-to-day care and regular mainte-
nance are essential. Lexus recommends the following maintenance:
Scheduled maintenance
Do-it-yourself maintenance