air filter LEXUS RC300H 2017 Owners Manual

TABLE OF CONTENTS6
RC300h_EE(OM24740E)
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior.................460
Cleaning and protecting
the vehicle interior ..................464
7-2. Maintenance
Maintenance
requirements............................. 467
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ................................469
Hood ................................................ 471
Positioning a floor jack............. 472
Engine compartment................ 473
12-volt battery............................... 481
Tires .................................................484
Replacing the tire .......................499
Tire inflation pressure.............. 505
Wheels............................................507
Air conditioning filter............... 509
Electronic key battery .................511
Checking and replacing
fuses ............................................... 514
Light bulbs ...................................... 518
8-1. Essential information
Emergency flashers ................. 528
If your vehicle has
to be stopped
in an emergency ......................529
8-2. Steps to take
in an emergency
If your vehicle needs
to be towed............................... 530
If you think something
is wrong .......................................536
If a warning light turns
on or a warning buzzer
sounds.......................................... 537
If a warning message
is displayed.................................542
If you have a flat tire...................563
If the hybrid system will
not start........................................ 576
If the electronic key does
not operate properly .............578
If the 12-volt battery
is discharged ............................ 582
If your vehicle overheats .........587
If the vehicle becomes
stuck..............................................592
7Maintenance and care8When trouble arises

4386-1. Using the air conditioning system
RC300h_EE(OM24740E)
■Switching between outside air and recirculated air modes
Press .
The mode switches among (recir culated air mode), automatic and
(outside air mode) modes each time the button is pressed.
When the system is switched to automatic mode, the air conditioning system oper-
ates automatically.
The indicator above the selected button comes on.
■Pollen removal mode
Pollen is removed from the air and the ai r flows to the upper part of the body.
Select
on the option control screen.
When pollen removal mode is on, is di splayed on the air conditioning con-
trol screen.
In order to prevent the windshield from fogg ing up when the outside air is cold, the
dehumidification function may operate.
Pollen is filtered even if the pollen removal mode is turned off.
■Defogging the windshield
Defoggers are used to defog the windshield and side windows.
Press .
Set the outside/recirculated air mode button to outside air mode if the recirculated
air mode is used. (It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press again when the windshield is
defogged.
■Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors.
Press .
The defoggers will automatically turn off after a period of time.
Other functions

4426-1. Using the air conditioning system
RC300h_EE(OM24740E)
■When the outside temperature falls to nearly 0C (32F)
The dehumidification function may not operate even when is pressed or “A/C” is
selected.
■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.
■Air conditioning filter
 P. 509
■Customization
Settings (e.g. A/C auto switch operation) can be changed. (Customizable features P. 614)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause the outer surface of the windshield to fog up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror surfaces when the outside rear view mirror defog-gers are on.
●Do not touch the glass at lower part of the windshield or to the side of the front pillarswhen the windshield wiper de-icer is on.
●Do not place anything on the instrumentpanel which may cover the air outlets. Other-wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

459
7Maintenance and care
RC300h_EE(OM24740E)
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................460
Cleaning and protecting
the vehicle interior.................. 464
7-2. Maintenance
Maintenance
requirements ............................ 467
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................ 469
Hood ................................................. 471
Positioning a floor jack ............ 472
Engine compartment ............... 473
12-volt battery .............................. 481
Tires .................................................484
Replacing the tire....................... 499
Tire inflation pressure ..............505
Wheels ........................................... 507
Air conditioning filter ...............509
Electronic key battery................. 511
Checking and replacing
fuses............................................... 514
Light bulbs...................................... 518

4707-3. Do-it-yourself maintenance
RC300h_EE(OM24740E)
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
●Make sure that the “ACCESSORY” or “IGNITION ON” on the multi-informationdisplay and the “READY” indicator are both off.
●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 drivingas 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 enginecompartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flamma-
ble.
●Be extremely cautious when working on the 12-volt battery. It contains poisonous and corrosive 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 cleanwater immediately.
If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automatically start to run if the air conditioning is on and/or the coolant temperature is high. ( P. 480)
■Safety glasses
Wear safety glasses to prevent flying or falling 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.

4777-3. Do-it-yourself maintenance
7
Maintenance and care
RC300h_EE(OM24740E)
WARNING
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin dis- orders such as inflammation and skin cancer, so care should be taken to avoid pro-
longed and repeated contact. To remove used engine oil from your skin, wash thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of
used oil and filters in household trash, in sewers or onto the ground. Call any authorized Lexus dealer or repair er, or another duly qualified and equipped professional, service station or auto parts store for information concerning recycling
or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.

5097-3. Do-it-yourself maintenance
7
Maintenance and care
RC300h_EE(OM24740E)
Turn the power switch off.
Open the glove box. Lift up the side
with the stay, disconnect the stay
tabs and remove the partition by
pulling horizontally.
Press the tabs and remove the filter
cover.
Press the tabs and remove the filter
case.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Removal method
1
2
3
4

5107-3. Do-it-yourself maintenance
RC300h_EE(OM24740E)
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The “ UP” marks shown on the filter
and the filter case should be pointing up.
■Checking interval
Inspect and replace the air conditioning filt er according to the maintenance schedule. In dusty areas or areas with heavy traffic fl ow, early replacement may be required. (For
scheduled maintenance information, please refer to the “Lexus Service Booklet” or “Lexus Warranty Booklet”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-
cantly weakened in a short period.
When an air conditioning odor comes out cont inuously, replace the air conditioning filter.
5
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.

5538-2. Steps to take in an emergency
8
When trouble arises
RC300h_EE(OM24740E)
Indicates a malfunction in the tire pressure warning sys- tem
 Stop the vehicle in a safe place and turn the power switch off then on again.If the tire pressure warning indicator flashes for 1
minute then illuminates, th ere is a malfunction in the system. Have the vehicle inspected by any autho-rized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
Indicates that the tire position information cannot be rec- ognized Drive for a short while and check if the display
updates. If the radio wave conditions improve, the displaymay return to normal. If the tire pressure is still not
displayed after driving for several minutes, stop the vehicle in a safe place, turn the power switch offthen on again, and start driving.
If the tire pressure is still not displayed even after repeating this process several times, have the vehi-cle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Maintenance of the hybrid battery (traction battery)
cooling component is required The filter may be clogged, the air intake vent may beblocked or there may be a gap in the duct
 Have maintenance performed on the hybrid battery (traction battery) cooling component by any autho-rized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
Indicates that the washer fluid level is low  Add washer fluid.
Indicates that remaining fuel is approximately 10 L (2.6 gal., 2.2 Imp. gal.) or less Refuel the vehicle.
Warning messageDetails/Actions

5548-2. Steps to take in an emergency
RC300h_EE(OM24740E)
Indicates that the engine oil is scheduled to be changed.
(The indicator will not work properly unless the message has been reset.) Check the engine oil, and change if necessary.
After changing the engine oil, the message should be reset.
Indicates that the engine oil should be changed. (Afterthe engine oil is changed and the message has been
reset.)  Check and change the engine oil, and oil filter by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional. After changing the engine oil, the message should bereset.
(If equipped)
Indicates that the Automatic High Beam switch ispressed while the headlights are in low beam.
 Turn the high beam on and press the Automatic High Beam switch again.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)system was turned off, the pre-crash brake system oper-
ation is stopped Operation of the pre-crash brake assist is alsostopped.
 Turn the VSC on. (P. 307)
(If equipped)
Indicates that the PCS (Pre-Crash Safety system) is not currently functional because the grille cover or the sen- sor is dirty
 Check the grille cover and the sensor and clean them if they are dirty.
Warning messageDetails/Actions
(Flashes)