2020 Lexus ES300h air conditioning

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
Hybrid transmission .....................152
Turn signal lever............................. 156
Parking brake ................................. 157
Brake Hold....................................... 159
4-3. Operating the lights and wipers Headlight switch ............................. 161
Automatic High Beam ................ 164
Windshield wipers and washer 166
4-4. Refueling Opening the fuel tank cap......... 172
4-5. Using the driving support systems Lexus Safety System + 2.0 ........ 174
PCS (Pre-Collision System)..... 180
LTA (Lane Tracing Assist)......... 187
RSA (Road Sign Assist) .............. 196
Dynamic radar crui se control with
full-speed range.......................... 198
BSM (Blind Spot Monitor) ....... 208
Driving Mode Select switch ..... 213
PKSA (Parking Support Alert) 215
Intuitive parking assist ................. 216
RCTA (Rear Cross Traffic Alert) function .......................................... 222
RCD (Rear Camera Detection) function .......................................... 226
PKSB (Parking Support Brake) ........................................................... 229
Parking Support Brake function (static objects) ............................ 235
Parking Support Brake function (rear-crossing vehicles)........... 241
Parking Support Brake function (rear pedestrians) ..................... 245
Driving assist systems ................. 248
4-6. Driving tips Hybrid vehicle driving tips........ 252Winter driving tips .......................
254
5-1. Remote Touch Remote Touch............................... 258
5-2. Lexus Climate Concierge Lexus Climate Concierge........ 263
5-3. Using the air conditioning system Automatic air conditioning system.......................................................... 265
Heated steering wheel/seat heat- ers/seat ventilators................... 273
5-4. Using the interior lights Interior lights list ............................ 277
5-5. Using the storage features List of storage features .............. 280
Trunk features ............................... 283
5-6. Using the other interior features Other interior features .............. 284
Garage door opener ................. 296
Compass ......................................... 302
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior................................... 306
Cleaning and protecting the vehi- cle interior .................................... 309
6-2. Maintenance Maintenance re quirements
.......312
General maintenance................. 313
Emission inspection and mainte- nance (I/M) programs ............. 316
5Interior features
6Maintenance and care

4TABLE OF CONTENTS
6-3. Do-it-yourself maintenanceDo-it-yourself service precautions............................................................ 317
Hood................................................... 319
Positioning a floor jack................ 319
Engine compartment................... 321
12-volt battery................................ 326
Tires ................................................... 329
Tire inflation pressure ................. 338
Wheels.............................................. 340
Air conditioning filter...................341
Cleaning the hybrid battery (trac- tion battery) air intake vent and fil-
ter..................................................... 343
Electronic key battery ................ 346
Checking and replacing fuses 348
Headlight aim................................. 350
Light bulbs ........................................ 351
7-1. Essential information Emergency flashers..................... 356
If your vehicle has to be stopped in an emergency ............................. 356
If the vehicle is trapped in rising water............................................... 357
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 359
If you think something is wrong 362
If a warning light turns on or a warn- ing buzzer sounds ..................... 364
If a warning message is displayed ........................................................... 374
If you have a flat tire..................... 378If the hybrid syst
em will not start
.......................................................... 385
If you lose your keys.................... 387
If the fuel filler door cannot be opened .......................................... 387
If the electronic key does not oper- ate properly ................................. 388
If the 12-volt battery is discharged .......................................................... 390
If your vehicle overheats ........... 395
If the vehicle becomes stuck ... 398
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 400
Fuel information............................ 407
Tire information ............................ 409
8-2. Customization Customizable features ............... 418
8-3. Items to initialize Items to initialize ........................... 429
9-1. For owners Reporting safety defects for U.S. owners ........................................... 432
Seat belt instructions for Canadian owners (in French) ................... 432
SRS airbag instructions for Cana- dian owners (in French) ......... 434
Headlight aim instructions for Canadian owners (in French) 440
7When trouble arises
8Vehicle specifications
9For owners

15Pictorial index
When the warning messages are displayed.......................................................... P.374
Parking brake switch ............................................................................................. P.157
Applying/releasing ............................................................................................................P.157
Precautions against winter season ............................................................................ P.255
Warning buzzer/message............................................................................................ P.374
Turn signal lever ...................................................................................................... P.156
Headlight switch....................................................................................................... P.161
Headlights/parking lights/tail lights/daytime running lights ............................. P.161
Automatic High Beam ......................................................................................................P.164
Windshield wiper and washer switch ................................................................ P.166
Usage.......................................................................................................................... .............P.166
Adding washer fluid ......................................................................................................... P.3 25
Warning messages .......................................................................................................... P.374
Emergency flasher switch ...................................................................................P.356
Hood lock release lever ........................................................................................ P.319
Tilt and telescopic steering control swit ch/tilt and telescopic steering lock
release lever ............................................................................................................. P.125
Adjustment ..................................................................................................................... ...... P.125
Driving position memory
*1............................................................................................. P.120
Air conditioning system .......................................................................................P.265
Usage.......................................................................................................................... ........... P.265
Rear window defogger................................................................................................... P.266
Audio system
*2
Trunk opener main switch ...................................................................................... P.111
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
E
F
G
H
I
J
K
L
M

641-4. Hybrid system
The illustration is an example for explanation and may differ from the actual item.
Warning label
Service plug
Hybrid battery (traction battery)
High voltage cables (orange)
Electric motor (traction motor)
Power control unit
Air conditioning compressor
■Running out of fuel
When the vehicle has run out of fuel and the
hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to
make the low fuel level warning light
(  P.367) go off. If there is only a small
amount of fuel, the hybrid system may not
be able to start. (The standard amount of fuel is about 2.4gal. [9.0 L, 2.0 Imp.gal.],
when the vehicle is on a level surface. This
value may vary when the vehicle is on a
slope. Add extra fuel when the vehicle is
inclined.)
■Electromagnetic waves
●High voltage parts and cables on hybrid
vehicles incorporate electromagnetic
Hybrid system precautions
Take care when handling the hybrid system,
as it is a high voltage system (about
650 V at maximum) as well as contains parts that become extremely hot when
the hybrid system is operating. Obey th e warning labels attached to the vehi-
cle.
System components
A
B
C
D
E
F
G

1794-5. Using the driving support systems
4
Driving
●In the following situations, if the situation has changed (or the vehicle has been driven for
some time) and the normal operating conditions are detected, the message will disappear
and the system will become operational.
If the message does not disappear, contact your Lexus dealer.
• When the temperature around the radar sensor is outside of the operational range, such as when the vehicle is in the sun or in an extremely cold environment
• When the front camera cannot detect objects in front of the vehicle, such as when driving
in the dark, snow, or fog, or when brig ht lights are shining into the front camera
When the temperature around the front
camera is outside of th e operational range,
such as when the vehicle is in the sun or in an
extremely cold environment
If the front camera is hot, such as after the
vehicle had been parked in the sun, use the
air conditioning system to decrease the tem-
perature around the front camera.
If a sunshade was used when the vehicle was
parked, depending on it s type, the sunlight
reflected from the surface of the sunshade
may cause the temperature of the front cam-
era to become excessively high.
If the front camera is cold, such after the
vehicle is parked in an extremely cold envi-
ronment, use the air conditioning system to
increase the temperature around the front
camera.
The area in front of the front camera is
obstructed, such as when the hood is open
or a sticker is attached to the part of the
windshield in front of the front camera.
Close the hood, remove the sticker, etc. to
clear the obstruction.
SituationActions

2134-5. Using the driving support systems
4
Driving
object may increase in the following situ-
ations:
• When the sensor is misaligned due to a strong impact to the sensor or its sur-
rounding area
• When the distance between your vehicle and a guardrail, wall, etc. that enters the
detection area is short
• When driving up an d down consecutive
steep inclines, such as hills, dips in the
road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a lane, and a vehi-
cle traveling in a lane other than the adja-
cent lanes enters the detection area
• When driving on roads with sharp bends,
consecutive curves, or uneven surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When an accessory (such as a bicycle carrier) or towing eyel et is installed to the
rear of the vehicle
1 Normal mode
Provides an optimal ba lance of fuel econ-
omy, quietness, and dynamic performance.
Suitable for city driving.
Press the switch to change the normal
mode when not in normal mode.
2 Eco drive mode
Helps the driver acce lerate in an eco-
friendly manner and improve fuel economy
through moderate thro ttle characteristics
and by controlling the operation of the air
conditioning system (heating/cooling).
When not in Eco drive mode, if the Driving
Mode Select switch is turned toward you,
the “Eco” indicator comes on.
3 Sport mode
Controls the hybrid system to provide
quick, powerful acceleration. This mode is
suitable for when agile driving response is
desired, such as when driving on roads
with many curves.
Driving Mode Select switch
The driving modes can be selected
to suit driving condition.
Selecting the driving mode

2144-5. Using the driving support systems
When not in SPORT mode, if the Driving
Mode Select switch is turned away from
you, the “Sport” indicator comes on.
■Operation of the air conditioning sys-
tem in Eco drive mode
Eco drive mode contro ls the heating/cool-
ing operations and fan speed of the air con-
ditioning system to enhance fuel efficiency.
To improve air condit ioning performance,
perform the following operations:
●Turn off eco air conditioning mode
(  P.270)
●Adjust the fan speed ( P.268)
●Turn off Eco drive mode ( P.213)
■Auto Glide Control
●While driving in Eco drive mode with D
position, selected, releasing the accelera-
tor pedal will activate Auto Glide Control
under certain conditions. (Auto Glide
Control may activate before the acceler-
ator pedal is fully released.)
When Auto Glide Control operates, the
electric motor (traction motor) will be
controlled, reducing the deceleration
force and allowing the vehicle to coast,
enhancing fuel economy.
When Auto Glide Control operates, the
AGC indicator light will illuminate.
●Auto Glide Control may not operate in
the following situations:
• When not in Eco drive mode
• When the brake pedal is depressed
• When a shift position other than D is selected
• When the vehicle speed is approximately 10 mph (15 km/h) or lower
• When the vehicle is accelerating on a
downward slope
• When the PCS (Pre-Collision System) is operating
• When the dynamic radar cruise control with full-speed range is operating
• When the PKSB (Parking Support Brake)
system is operating
• When the TRAC or VSC system is oper- ating
• When the TRAC or VSC system is dis-
abled by pressing the switch
■Automatic deactivation of sport mode
If the power switch is turned off after driving
in sport mode, the drive mode will be
changed to normal mode.
■Driving mode pop-up display (12.3-inch
display model)
When the driving mode is changed, the
selected driving mode will be temporarily
displayed on the side display. ( P.261)

2194-5. Using the driving support systems
4
Driving
and other factors, the detection distance
may shorten, or detection may be impos-
sible.
• There will be a short delay between
object detection and display. Even at low
speeds, there is a possibility that the
object will come within the sensor’s
detection areas before the display is
shown and the warning beep sounds.
• It might be difficult to hear the buzzer due
to the volume of the audio system or air
flow noise of the air conditioning system.
• It may be difficult to hear the buzzer if
buzzers for other systems are sounding.
■Conditions under which the function
may not function correctly
Certain vehicle conditions and the sur-
rounding environment may affect the ability
of a sensor to correctly detect objects. Par-
ticular instances where this may occur are
listed below.
●There is dirt, snow or ice on a sensor.
(Cleaning the sensors will resolve this
problem.)
●A sensor is frozen. (Thawing the area will
resolve this problem.)
In especially cold weather, if a sensor is
frozen the sensor display may be dis-
played abnormally, or objects, such as a
wall, may not be detected.
●A sensor is covered in any way.
●When a sensor or the area around a sen-
sor is extremely hot or cold.
●On an extremely bumpy road, on an
incline, on gravel, or on grass.
●The vicinity of the vehicle is noisy due to
vehicle horns, motorcycle engines, air
brakes of large vehicles, or other loud
noises producing ultrasonic waves.
●There is another vehicle equipped with
parking assist sensors in the vicinity.
●A sensor is coated with a sheet of spray
or heavy rain.
●If a sensor is hit by a large amount of
water, such as when driving on a flooded
road.
●If the vehicle is significantly tilted.
●The vehicle is approaching a tall or
curved curb.
●If objects draw too close to the sensor.
■Objects which may not be properly
detected
The shape of the object may prevent the
sensor from detectin g it. Pay particular
attention to the following objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials that
absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections project-
ing outwards in the direction of your vehi-
cle
People may not be de tected if they are
wearing certain types of clothing.
■Detection range of the sensors
Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 2.0 ft. (60 cm)
The diagram shows the detection range of
the sensors. Note that the sensors cannot
detect objects that are extremely close to
the vehicle.
Sensor detection display, object
distance
A
B
C