2021 LEXUS ES300h air conditioning

3977-2. Steps to take in an emergency
7
When trouble arises
engine coolant is unavailable.
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 (radiato r) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4 The 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
A
B
A
B
C

4158-1. Specifications
8
Vehicle specifications
■Traction 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.
■Temperature 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 sudd
en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral 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, unde rinflation, 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 se ats, 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

4288-2. Customization
■RCTA (Rear Cross Traffic Alert) function* ( P.222)
*:If equipped
■RCD (Rear Camera Detection) function* ( P.227)
*:If equipped
■PKSB (Parking Support Brake)* ( P.229)
*:If equipped
■Automatic air conditioning system ( P.265)
FunctionDefault settingCustomized set-
ting
RCTA (Rear Cross Traffic
Alert) functionOnOffO
Buzzer volume*Level2Level1OLevel3
FunctionDefault settingCustomized set-ting
RCD (Rear Camera Detection)
functionOnOffO
FunctionDefault settingCustomized set-ting
PKSB (Parking Support Brake)
functionOnOffO
FunctionDefault settingCustomized set-ting
A/C auto switch operationOnOffOO
Exhaust gas sensor sensitivityStandard-3 to 3OO
ABC
ABC
ABC
ABC

449Alphabetical index
Alphabetical index
A
A/C ................................................................... 265Air conditioning filter ............................... 342
Automatic air conditioning system ... 265
Front seat concentr ated airflow mode
(S-FLOW)................................................... 271
ABS (Anti-lock Brake System).............. 248 Function .......................................................... 248
Warning light ............................................... 367
ACA (Active Cornering Assist) ........... 248
Acoustic vehicle alerting system ............. 63
Active Cornering Assist (ACA) ........... 248
Adaptive Front-lighting System (AFS) .163
AFS (Adaptive Front-lighting System) .163
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 ......................................366
Air conditioning filter ................................. 342
Air conditioning system ............................ 265 Air conditioning filter ............................... 342
Automatic air conditioning system ... 265
Front seat concentr ated airflow mode
(S-FLOW)................................................... 271
Alarm ..................................................................... 71 Alarm..................................................................... 71
Warning buzzer ........................................ 365
Anchor brackets ..................................... 44, 53
Antennas (smart access system with push-
button start) ................................................... 112
Anti-lock Brake System (ABS).............. 248 Function ..........................................................248
Warning light ............................................... 367
Approach warning...................................... 204
Armrest............................................................ 293
Assist grips ..................................................... 293
Audio system-linked display ...................... 83
Auto Glide Control ...................................... 214
Automatic headlight leveling system ....162
Automatic High Beam ................................164
Automatic light control system................. 161
Auxiliary box.................................................. 282
Average fuel economy................................. 82
Average vehicle speed ................................ 82
B
Back-up lights Replacing light bulbs ................................352
Battery (12-volt battery) ........................... 326 Battery checking ........................................326
If the 12-volt battery is discharged ..... 391
Preparing and checking before winter..........................................................................254
Warning light .............................................. 366
Battery (traction batter y) ............................ 64
Blind Spot Monitor (BSM).......................208
Brake Brake hold ...................................................... 159
Fluid.................................................................. 406
Parking brake ................................................157
Regenerative braking ................................. 62
Warning light .............................................. 365
Brake assist .................................................... 248
Break-in tips..................................................... 137
Brightness control Instrument panel light control................ 80
BSM (Blind Spot Monitor).......................208

Alphabetical index453
...........................................................................163
Automatic High Beam system..............164
Light switch ...................................................... 161
Replacing light bulbs................................ 352
Headlights aim ................................................351
Head restraints ...............................................123
Head-up display.............................................. 86 Driving information display area........... 86
Driving support system display area ..88
HUD (Head-up display) switch............ 87
Hybrid System Indicator ........................... 89
Navigation system-linked display ........ 86
Pop-up display...............................................88
Settings .............................................................. 87
Heated steering wheel .............................. 273
Heaters Air conditioning system.......................... 265
Heated steering wheel............................ 273
Outside rear view mirrors .................... 266
Seat heaters .................................................. 273
High mounted stoplight Replacing light bulbs................................ 352
High-voltage components ......................... 64
Hill-start assist control ............................... 248
Hood ...................................................................319 Open .................................................................319
Hooks Cargo hooks................................................ 283
Coat hooks ................................................... 295
Grocery bag hooks ................................. 283
Retaining hooks (floor mat)......................22
Horn .................................................................... 126
HUD (Head-up display) switch................ 87
Hybrid battery (traction battery) Location............................................................. 64
Specification .................................................404
Warning message........................................ 67
Hybrid battery (traction battery) air vents ..............................................................................67
Hybrid system .................................................... 61 Acoustic vehicle alerting system .......... 63
Emergency shut off system ..................... 67 Energy monitor/consumption screen90
EV drive mode............................................. 150
High voltage components ....................... 64
Hybrid system precautions...................... 64
Hybrid vehicle driving tips .................... 252
If the hybrid system will not start ....... 386
Overheating ................................................. 397
Power (ignition) switch ............................ 145
Regenerative braking ................................. 62
Starting the hybrid system ...................... 145
Hybrid System Indicator...................... 79, 89
Hybrid transmission......................................152 Paddle shift switches .......................154, 155
S mode ............................................................. 155
I
I/M test ..............................................................316
IdentificationEngine............................................................. 403
Vehicle ............................................................402
Ignition switch (power switch) .................145
Auto power off function........................... 149
Changing the power switch modes . 148
If your vehicle has to be stopped in an emergency ................................................ 358
Starting the hybrid system ...................... 145
Immobilizer system........................................ 69
Indicators ........................................................... 75
Initialization Items to initialize ...........................................431
Maintenance.......................................312, 323
Power windows ........................................... 130
Tire pressure warning system .............335
Inside rear view mirror ................................126
Instrument panel light control ................... 80
Interior lights...................................................277
Intuitive parking assist........................215, 216 Function ............................................................216
Warning message ...................................... 218