2022 LEXUS ES300h air conditioning

3977-2. Steps to take in an emergency
7
When trouble arises
as soon as possible.
6Start the hybrid system and turn the
air conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fan is operating
by checking the fan sound and air flow. If it
is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing tem-
peratures.)
7 If the fan is not operating:
Stop the hybrid system immediately
and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.
If “Hybrid system overheated Out-
put power reduced” is shown on the
multi-information display
1 Stop the vehicle in a safe place.
2 Stop the hybrid system and care-
fully lift the hood. 3
After the hybrid system has cooled
down, inspect the hoses and radia-
tor core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be used in an emergency if
power control unit coolant is unavailable.
If water was added in an emergency, have
the vehicle inspected at your Lexus dealer
A
B
A
B
C

4168-1. Specifications
QTraction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C, and they
represent the tire’s ability to stop on
wet pavement as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction.
QTemperature A, B, C
The temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Federal Motor Vehicle
Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning: The temperature grades of a tire
assume that it is properly inflated and not
overloaded.
Excessive speed, underinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been parked for three hours or
more, or has not been driven more
than 1 mile or 1.5 km under that
condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a tire may be inflated,
shown on the sidewall of the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a manufacturer
Accessory weight
The combined weight (in excess of those standard items which may
be replaced) of hybrid transmission, power steering, power brakes,
power windows, power seats, radio and heater, to the extent that
these items are available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment, including the
maximum capacity of fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional engine

4308-2. Customization
*: If equipped
QAutomatic air conditioning system (P.270)
QSeat heater*/seat ventilators* ( P.278)
*: If equipped
QHeated steering wheel* ( P.278)
*: If equipped
Chassis control in custom
mode
*NormalSportO
Air conditioning operation in
custom mode
*NormalEcoO
FunctionDefault settingCustomized set-
ting
A/C auto switch operationOnOffOO
Exhaust gas sensor sensitivityStandard-3 to 3OO
FunctionDefault settingCustomized set-ting
Driver’s seat temperature pref-
erence in automatic modeStandard-2 (cooler) to 2 (warmer)OO
Passenger’s seat temperature
preference in automatic modeStandard-2 (cooler) to 2 (warmer)OO
FunctionDefault settingCustomized set- ting
Steering wheel heating prefer-
ence in automatic modeStandard-2 (low) to 2 (high)OO
FunctionDefault settingCustomized set-tingABC
ABC
ABC
ABC

451Alphabetical index
Alphabetical index
A
A/C ................................................................... 270Air conditioning filter ............................... 342
Automatic air conditioning system ... 270
Front seat concentrated airflow mode (S-FLOW)................................................. 276
ABS (Anti-lock Brake System).............. 253 Function .......................................................... 253
Warning light ...............................................366
ACA (Active Cornering Assist) ........... 253
Acoustic vehicle alerting system ...............61
Active Cornering Assist (ACA) ........... 253
Adaptive Variable Suspension system253
AHB (Automatic High Beam) .................166
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 ......................................365
Air conditioning filter ................................. 342
Air conditioning system ............................ 270 Air conditioning filter ............................... 342
Automatic air conditioning system ... 270
Front seat concentrated airflow mode (S-FLOW)................................................. 276
Alarm ................................................................... 68 Alarm...................................................................68
Warning buzzer .........................................364
Anchor brackets ..................................... 44, 53
Antennas (smart access system with push- button start) ................................................... 115
Anti-lock Brake System (ABS).............. 253 Function ..........................................................253
Warning light .............................................. 366
Approach warning........................................210
Armrest............................................................ 295
Assist grips ..................................................... 295
Audio system-linked display ...................... 89
Auto Glide Control .................................... 220
Automatic headlight leveling system ....164
Automatic High Beam (AHB) .................166
Automatic light control system................163
Auxiliary box.................................................. 287
Average fuel economy................................. 87
Average vehicle speed ................................ 87
B
Back-up lights Replacing light bulbs................................352
Battery (12-volt battery) ........................... 328 Battery checking ........................................328
If the 12-volt battery is discharged ..... 391
Preparing and checking before winter......................................................................... 260
Warning light .............................................. 365
Battery (traction battery) ............................ 62
Blind Spot Monitor (BSM).........................214
Brake Brake hold ........................................................ 161
Fluid.................................................................. 406
Parking brake ............................................... 159
Regenerative braking .................................60
Warning light ...............................................364
Brake assist .................................................... 253
Break-in tips.....................................................139
Brightness control Instrument panel light control........ 79, 84
BSM (Blind Spot Monitor).........................214

Alphabetical index455
Glove box light ............................................. 286
Grocery bag hooks ....................................288
H
Hands Free Power Trunk Lid ......................111
Headlights ........................................................163AHB (Automatic High Beam)..............166
Light switch.....................................................163
Replacing light bulbs................................ 352
Headlights aim ................................................351
Head restraints ...............................................124
Head-up display................................................91 Driving information display area............. 91
Driving support system display area .. 93
HUD (Head-up display) switch............ 92
Hybrid System Indicator ........................... 94
Navigation system-linked display .......... 91
Pop-up display............................................... 93
Settings .............................................................. 92
Heated steering wheel .............................. 278
Heaters Air conditioning system.......................... 270
Heated steering wheel............................ 278
Outside rear view mirrors ...................... 271
Seat heaters .................................................. 278
High mounted stoplight Replacing light bulbs................................ 352
High-voltage components ......................... 62
Hill-start assist control ............................... 253
Hood ...................................................................321 Open ................................................................. 321
Hooks Cargo hooks................................................288
Coat hooks ................................................... 297
Grocery bag hooks .................................288
Retaining hooks (floor mat)......................22
Horn .................................................................... 127
HUD (Head-up display) switch ................ 92
Hybrid battery (traction battery) Location............................................................. 62
Specification .................................................404
Warning message........................................ 65 Hybrid battery (traction battery) air vents
............................................................................. 64
Hybrid system .................................................. 59 Acoustic vehicle alerting system.............61
Emergency shut off system......................65
Energy monitor/consumption screen95
EV drive mode............................................. 153
High voltage components ....................... 62
Hybrid system precautions...................... 62
Hybrid vehicle driving tips ................... 258
If the hybrid system will not start ....... 386
Overheating ................................................. 397
Power (ignition) switch ............................ 148
Regenerative braking .................................60
Starting the hybrid system ...................... 148
Hybrid System Indicator.............. 77, 82, 94
Hybrid transmission......................................154 Paddle shift switches .......................156, 157
S mode ..............................................................157
I
I/M test ............................................................. 318
IdentificationEngine............................................................. 403
Vehicle ............................................................402
Ignition switch (power switch) ................ 148 Auto power off function........................... 152
Changing the power switch modes ... 151
If your vehicle has to be stopped in an emergency................................................ 358
Starting the hybrid system ...................... 148
Immobilizer system.........................................67
Indicators ............................................................74
Initialization Items to initialize .........................................433
Maintenance...................................... 314, 325
Power windows............................................. 131
Tire pressure warning system .............334
Inside rear view mirror ................................ 127
Instrument panel light control ........... 79, 84
Interior lights.................................................. 282
Intuitive parking assist.......................221, 222