air filter Lexus ES350 2020 Owner's Manuals / LEXUS 2020 ES350 THROUGH SEPT. 2019 PROD. OWNER'S MANUAL (OM06174U)

4TABLE OF CONTENTS
6-3. Do-it-yourself maintenanceDo-it-yourself service precautions............................................................ 312
Hood................................................... 314
Positioning a floor jack................ 314
Engine compartment................... 316
Tires ................................................... 322
Tire inflation pressure .................. 331
Wheels.............................................. 333
Air conditioning filter..................335
Electronic key battery ................ 336
Checking and replacing fuses 338
Headlight aim................................. 340
Light bulbs ........................................ 341
7-1. Essential information Emergency flashers..................... 346
If your vehicle has to be stopped in an emergency ............................. 346
If the vehicle is trapped in rising water............................................... 347
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 349
If you think something is wrong 352
Fuel pump shut off system ........ 353
If a warning light turns on or a warn- ing buzzer sounds ..................... 354
If a warning message is displayed ........................................................... 364
If you have a flat tire..................... 368
If the engine wi ll not start .......... 375
If you lose your keys .................... 377If the fuel filler door cannot be
opened .......................................... 377
If the electronic key does not oper- ate properly ................................. 378
If the battery is discharged ....... 380
If your vehicle overheats ........... 383
If the vehicle becomes stuck ... 385
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 388
Fuel information............................ 395
Tire information ............................ 397
8-2. Customization Customizable features .............. 406
8-3. Items to initialize Items to initialize ............................. 417
9-1. For owners Reporting safety defects for U.S. owners ........................................... 420
Seat belt instructions for Canadian owners (in French) ................... 420
SRS airbag instructions for Cana- dian owners (in French) .......... 422
Headlight aim instructions for Canadian owners (in French) 428
What to do if... (Troubleshooting) .......................................................... 432
Alphabetical index ..................... 435
7When trouble arises
8Vehicle specifications
9For owners
Index

2635-3. Using the air conditioning system
5
Interior features
■Outside/recirculated air mode
●Setting to the recirculated air mode tem-
porarily is recommended in preventing
dirty air from entering the vehicle interior
and helping to cool the vehicle when the
outside air temperature is high.
●Outside/recirculated air mode may auto-
matically switch regardless of the air con-
ditioning setting depending on the
temperature setting or inside tempera-
ture.
■Registering air conditioning settings to
electronic keys
●Unlocking the vehicle using an electronic
key and turning the engine switch to
IGNITION ON mode will recall that
key’s registered air conditioning settings.
●When the engine switch is turned off, the
current air conditioning settings will auto-
matically be registered to the electronic
key that was used to unlock the vehicle.
●The system may not operate correctly if
more than one electronic key is in the
vicinity or if the smart access system with
push-button start is used to unlock the
passenger door.
●Vehicles with the driving position mem-
ory: The doors that can recall the air con-
ditioning setting
* when unlocked using
the smart access system with push-but-
ton start can be changed. For details,
contact your Lexus dealer.
*: The doors that can recall the driving posi-
tion memory are changed at the same
time.
■Operation of the air conditioning sys-
tem in Eco drive mode
In Eco drive mode, the air conditioning sys-
tem is controlled as follows to prioritize fuel
efficiency:
●Engine speed and compressor operation
controlled to restri ct heating/cooling
capacity
●Fan speed restricted when automatic
mode is selected
To improve air conditioning performance,
perform the following operations:
●Turn off eco air conditioning mode
(  P.264)
●Adjust the fan speed
●Turn off Eco drive mode ( P.209)
■When the outside temperature falls to
nearly 32°F (0°C)
The dehumidification function may not
operate even when “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
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●When parking, the system automatically
switches to fresh air intake mode to
encourage better air circulation through-
out the vehicle, helping to reduce odors
that occur when starting the vehicle.
■Using the voice command system
Air conditioning system can be operated
using voice commands. For details, refer to
the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.
■Air conditioning filter
 P.335
■Customization
Settings (e.g. A/C Auto switch operation)
can be changed.
(Customizable features P.406)
WARNING
■To prevent the windshield from fog-
ging up
Do not use the windshield defogger
switch during cool air operation in
extremely humid weather. The difference
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.

301
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 302
Cleaning and protecting the vehi- cle interior ................................. 305
6-2. Maintenance Maintenance requirements .. 307
General maintenance ............. 308
Emission inspection and mainte- nance (I/M) programs ........... 311
6-3. Do-it-yourself maintenance Do-it-yourself service precautions......................................................... 312
Hood................................................ 314
Positioning a floor jack............. 314
Engine compartment................ 316
Tires ................................................ 322
Tire inflation pressure ............... 331
Wheels........................................... 333
Air conditioning filter...............335
Electronic key battery ............. 336
Checking and replacing fuses ........................................................ 338
Headlight aim.............................. 340
Light bulbs ..................................... 341

3136-3. Do-it-yourself maintenance
6
Maintenance and care
Tire inflation
pressure
( P.331)• Tire pressure gauge
• Compressed air source
Washer fluid
( P.321)
• Water or washer fluid
containing antifreeze
(for winter use)
• Funnel (used only for adding water or washer
fluid)
WARNING
The engine compartment contains many
mechanisms and fluids that may move
suddenly, become hot, or become elec-
trically energized. To avoid death or seri-
ous injury, observe the following
precautions.
■When working on the engine com-
partment
●Keep hands, clothi ng 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 and battery fumes are flammable.
■When working near the electric cool-
ing fan or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION
ON mode, the electric cooling fan may
automatically start to run if the air condi-
tioning is on and/or the coolant tempera-
ture is high. ( P.319)
ItemsParts and tools■Safety glasses
Wear safety glasses to prevent flying or
falling material, fluid spray, etc. from get-
ting 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.

3356-3. Do-it-yourself maintenance
6
Maintenance and care
1Turn the engine switch off.
2 Open the glove box.
3 Remove the panel.
4 Unlock the filter cover ( ), pull
the filter cover out of the claws
( ), and remove the filter cover. 5
Remove the filter case.
6 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 fil-
ter according to the maintenance schedule.
In dusty areas or areas with heavy traffic
flow, early replacement may be required.
(For scheduled maintenance information,
please refer to the “Owner’s Manual Sup-
plement” or “Scheduled Maintenance”.)
■If air flow from the vents decreases dra-
matically
The filter may be clogged. Check the filter
and replace if necessary.
■Air conditioning filt er with deodorizing
function
When fragrances are placed in your vehi-
cle, the deodorizing effect may become
significantly weakened in a short period.
When an air conditioning odor comes out
continuously, replace the air conditioning
Air conditioning filter
The air conditioning filter must be
changed regularly to maintain air
conditioning efficiency.
Removing the air conditioning
filter
A
B

3366-3. Do-it-yourself maintenance
filter.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-but-
ton start and wireless remote control will
not function properly.
●The operational range will be reduced.
Prepare the following before replacing
the battery:
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
●Replace only with the same or equivalent
type recommended by the manufacturer.
●Dispose of used batteries according to
the local laws.
1Take out the mechanical key.
NOTICE
■When using the air conditioning sys-
tem
●Make sure that a filter is always
installed.
Using the air conditioning system with-
out a filter may cause damage to the
system.
●The filter is replaceable.
When cleaning the filter, do not clean
with water or an air gun.
■To prevent damage to the filter cover
When moving the filter cover in the
direction of arrow to release the fitting,
pay attention not to apply excessive force
to the claws. Otherwise, the claws may
be damaged.
Electronic key battery
Replace the battery with a new one
if it is depleted.
Items to prepare
Replacing the battery

435Alphabetical index
Alphabetical index
A
A/C ..................................................................... 261Air conditioning filter ............................... 335
Automatic air conditioning system ..... 261
ABS (Anti-lock Brake System).............. 245 Function .......................................................... 245
Warning light ...............................................356
ACA (Active Cornering Assist) ........... 245
Active Cornering Assist (ACA) ........... 245
Adaptive Front-lighting System (AFS) 158
Adaptive Variable Suspension System245
AFS (Adaptive Front-lighting System) 158
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................355
Air conditioning filter ................................. 335
Air conditioning system .............................. 261 Air conditioning filter ............................... 335
Automatic air conditioning system ..... 261
Alarm ................................................................... 62 Alarm .................................................................. 62
Warning buzzer ......................................... 354
Anchor brackets ...................................... 43, 51 Antennas (smart access
system with push-
button start) ................................................. 106
Anti-lock Brake System (ABS).............. 245 Function ..........................................................245
Warning light .............................................. 356
Approach warning........................................199
Armrest............................................................288
Assist grips .....................................................288
Audio system-linked display ........................81
Automatic headlight leveling system .... 157
Automatic High Beam ................................159
Automatic light control system................156
Automatic transmission .............................. 147 Paddle shift switches ...................... 150, 150
S mode ............................................................. 150
Auxiliary box...................................................277
Average fuel economy..................................79
Average vehicle speed .................................79
B
Back-up lights Replacing light bulbs ..................................341
Battery Checking .......................................................320
If the battery is discharged ................... 380
Preparing and checking before winter.......................................................................... 249
Warning light .............................................. 355
Blind Spot Monitor (BSM)....................... 203
Boost gauge...................................................... 80
Brake Brake hold ...................................................... 154
Fluid...................................................................392
Parking brake ............................................... 152
Warning light ...............................................354
Brake assist .................................................... 245
Break-in tips.....................................................135
Brightness control Instrument panel light control......... 72, 76
BSM (Blind Spot Monitor)....................... 203