
5466-2. Using the air conditioning system and defogger
RX350/RX200t_EE_OM48F32E
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu- lated air mode button to the recirculated air mode. This is effective in preventing out-
side air from entering the vehicle interior . During cooling operation, setting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tempera-
ture setting or the inside temperature.
■When the outside temperature is low
The dehumidification function may not operate even when “A/C” is selected.
■Operation of the air conditioning system in Eco drive mode
●In the Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel efficiency
• Engine speed and compressor operation co ntrolled to restrict heating/cooling capacity• Fan speed restricted when automatic mode is selected
●To improve air conditioning performance, perform the following operations
• Adjust the fan speed
• Turn off Eco drive mode
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and accu- mulate in the air conditioning system. This may then cause odor to be emitted from the vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior
to turning the vehicle off. • The start timing of the blower may be dela yed for a short period of time immediately after the air conditioning system is started in automatic mode.
■When the Heated Windshield Defroster is operating (if equipped)
When the Heated Windshield Defroster is op erating, operation of the heated steering wheel, front passenger seat heater and rear seat heaters will be suspended.

584
RX350/RX200t_EE_OM48F32E
7-1. Maintenance and care
●Working from top to bottom, liberally apply water to the vehicle body, wheel
wells and underside of the vehicle to remove any dirt and dust.
●Wash the vehicle body using a sponge or soft cloth, such as a chamois.
●For hard-to-remove marks, use car wash soap and rinse thoroughly with
water.
●Wipe away any water.
●Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle body is cool.
■Self-restoring coat
The vehicle body has a self-restoring coating that is resistant to small surface scratches caused in a car wash, etc.
●The coating lasts for 5 to 8 years from when the vehicle is delivered from the plant.
●The restoration time differs depending on the depth of the scratch and outside tem-perature. The restoration time may become shorter when the coating is warmed by
applying warm water.
●Deep scratches caused by keys, co ins, etc., cannot be restored.
●Do not use wax that contain abrasives.
■Automatic car washes
●Before washing the vehicle:
• Fold the mirrors
• Turn off the power back door (if equipped) Start washing from the front of the vehicle. Extend the mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm your
vehicle’s paint.
●Rear spoiler may not be washable in some automatic car washes. There may also be an increased risk of damage to vehicle.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the windows.
●Before using the car wash, check that the fuel filler door on your vehicle is closed prop- erly.
Cleaning and protecting the vehicle exterior
Perform the following to protect the vehicle and maintain it in prime condi-
tion:

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.

6297-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX200t_EE_OM48F32E
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Lexus dealer or repairer, or another duly qua lified and equipped professional.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold. If your vehicle has been parked for at least 3 hours or has not been driven for more than
1.5 km or 1 mile, you will get an accurate cold tire inflation pressure reading.
●Always use a tire pressure gauge. It is difficult to judge if a tire is prop erly inflated based only on its appearance.
●It is normal for the tire inflation pressure to be higher after driving as heat is generated in the tire. Do not reduce tire inflation pressure after driving.
●Passengers and luggage weight should be placed so that the vehicle is balanced.
Tire inflation pressure
Make sure to maintain proper tire infl ation pressure. Tire inflation pressure
should be checked at least once per month. However, Lexus recommends
that tire inflation pressure be checked once every two weeks. ( P. 737)

655
8When trouble arises
RX350/RX200t_EE_OM48F32E
8-1. Essential information
Emergency flashers ..................656
If your vehicle has
to be stopped
in an emergency ...................... 657
8-2. Steps to take
in an emergency
If your vehicle needs
to be towed................................658
If you think something
is wrong....................................... 664
Fuel pump shut off system ...... 665
If a warning light turns
on or a warning buzzer
sounds.......................................... 666
If a warning message
is displayed ................................ 673
If you have a flat tire
(vehicles with
a spare tire)................................ 679
If you have a flat tire
(vehicles without
a spare tire)................................ 693
If the engine will not start ........708
If the electronic key does
not operate properly ...............710
If the vehicle battery
is discharged............................... 714
If your vehicle overheats .......... 718
If the vehicle becomes
stuck ............................................. 722

6658-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
Follow the procedure below to restart the engine after the system is activated.
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or when an airbag
inflates upon collisio n, the fuel pump shut off system stops the supply of fuel to
the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle. If you find that fuel has leaked onto the ground, the fuel system has been damaged and
is in need of repair. Do not restart the engine.
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6698-2. Steps to take in an emergency
8
When trouble arises
RX350/RX200t_EE_OM48F32E
*: Seat belt warning buzzer: The seat belt warning buzzer sounds to al ert the driver, front passenger and rear pas-
sengers (if equipped) that his or her seat belt is not fastened. The buzzer sounds for
30 seconds after the vehicle reaches a speed of 20 km/h (12 mph). Then, if the seat
belt is still unfastened, the buzzer will sound in a different tone for 90 more seconds.
(Flashes)
(If equipped)
Stop & Start cancel indicator Indicates a malfunction in the Stop & Start system
(The Stop & Start cancel indicator will come on when the system is
canceled: P. 348)
Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Low fuel level warning light Indicates that remaining fuel is approximately 10.8 L (2.8 gal.,
2.3 Imp. gal.) or less
Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*
Warns the driver and/or front passe nger to fasten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
(If equipped)
Rear passengers’ seat belt reminder light (warning buzzer)*
Warns the rear passengers to fasten their seat belts
Fasten the seat belt.
Tire pressure warning light
Indicates the following:
• Low tire pressure due to flat tire;
• Low tire pressure due to natural causes; or
• The tire pressure warning system is malfunctioning
Immediately stop the vehicle in a safe place.
Handling method ( P. 670)
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warnin g system has detected a malfunc-
tion.
P. 673
Warning lightWarning light/Details/Actions

6708-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
■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 passen-ger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-ing light may not operate properly.
■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 lig ht may come on and the warning buzzer may sound.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely empty. If the fuel tank is empty, refuel the vehicle immediately. The malfunction indicator lamp
will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus dealer or repairer, or another duly qualified and eq uipped professional as soon as possible.
■When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured.
If a tire is punctured: P. 679, 693
If none of the tires are punctured: Turn the engine switch off then turn it to IGNITION ON mode. Check if the tire pressurewarning light comes on or blinks.
If the tire pressure warning light comes on
After the temperature of the tires has lowere d sufficiently, check the inflation pressure of each tire and adjust them to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check that the inflation pressure of each tire is at the specified level and perform initialization. ( P. 616)
If the warning light does not turn off severa l minutes after the initialization has been per- formed, have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional immediately.
If the tire pressure warning light blinks for 1 minute then stays on
There may be a malfunction in the tire pressure warning system. Have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately.
■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 or tire inflation pressure changes caused by temperature. In this case, adjusting the tire inflation pressure will turn off th e warning light (after a few minutes).
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