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
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
Page 595 of 776

595
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
7-3. 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.
ItemsParts and tools
Battery condition ( P. 607)
• Warm water • Baking soda • Grease
• Conventional wrench (for terminal clamp bolts)
Engine/intercooler coolant level ( P. 605)
• “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol-based non-silicate, non-amine, non-nitriteand non-borate coolant with long-life hybrid organic acid
technology “Toyota Super Long Life Coolant” is pre-mixed with 50%coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level ( P. 601)
• “Toyota Genuine Motor Oil” or equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 640)• Fuse with same amperage rating as original
Light bulbs ( P. 643)
• Bulb with same number and wattage rating as original
• Flathead screwdriver
•Wrench
Radiator, condenser and intercooler radi-ator ( P. 607)
Tire inflation pres-
sure ( P. 629)• Tire pressure gauge• Compressed air source
Washer fluid ( P. 611)
• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
Page 596 of 776

5967-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energize d. To avoid death or serious injury, observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc., right after driving
as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel andbattery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted sur- faces. If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately. If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto- matically start to run if the air conditioning is on and/or the coolant temperature is high. ( P. 607)
■Safety glasses
Wear safety glasses to prevent flying or fa lling material, fluid spray, etc., from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when the fluid level in the accumulator is high.If the reservoir needs frequent refillin g, it may indicate a serious problem.
Page 598 of 776
5987-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
◆Front
◆Rear
Positioning a floor jack
When using a floor jack, follow the instructions in the manual provided with
the jack and perform the operation safely.
When raising your vehicle with a floo r jack, position the jack correctly.
Improper placement may damage your vehicle or cause injury.
Page 602 of 776
6027-3. Do-it-yourself maintenance
RX350/RX200t_EE_OM48F32E
Holding a rag under the end, pull the dipstick out and check the oil level.
Low
Normal
Excessive
The shape of the dipstick may differ depending on the type of vehicle or
engine.
Wipe the dipstick and reinsert it fully.
5
1
2
3
Flat dipstickNon-flat dipstick
6