air condition LEXUS RX450h 2022 Owners Manual

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Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before drivingOpening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
DrivingOperations and advice which are necessary for driving
(Main topics: Starting hybrid system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, seat belt, SRS
airbag and headlight aim instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

3TABLE OF CONTENTS
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Trailer towing (vehicles with towing package) ......................................... 171
Dinghy towing ................................. 181
4-2. Driving procedures Power (ignition) switch ............... 182
EV drive mode ............................... 187
Hybrid transmission ..................... 189
Turn signal lever............................. 192
Parking brake ................................. 193
Brake Hold....................................... 196
4-3. Operating the lights and wipers Headlight switch ............................ 198
AHB (Automatic High Beam) ............................................................ 201
Fog light switch ............................. 204
Windshield wipers and washer ........................................................... 204
Rear window wiper and washer ........................................................... 208
4-4. Refueling Opening the fuel tank cap........ 209
4-5. Using the driving support systems Lexus Safety System + 2.0 ........ 212
PCS (Pre-Collision System)..... 218
LTA (Lane Tracing Assist)........ 225
RSA (Road Sign Assist) ............. 234
Dynamic radar crui se control with
full-speed range ......................... 236
BSM (Blind Spot Monitor) ....... 246
PKSA (Parking Support Alert) ........................................................... 250
Intuitive parking assist ................ 252
RCTA (Rear cross traffic alert) function .......................................... 259
PKSB (Parking Support Brake) ........................................................... 265Parking Support Brake function
(static objects) .............................. 271
Parking Support Brake function (rear-crossing vehicles) .......... 274
Driving mode select switch ..... 276
Driving assist systems ................ 278
4-6. Driving tips Hybrid vehicle driving tips ....... 284
Winter driving tips ....................... 286
Utility vehicle precautions........ 288
5-1. Remote Touch/Display Remote Touch................................ 292
Center Display.............................. 294
5-2. Lexus Climate Concierge Lexus Climate Concierge........ 297
5-3. Using the air conditioning system and defogger
Front automatic air conditioning system ............................................ 298
Rear automatic air conditioning system ............................................ 309
Heated steering wheel/seat heat- ers/seat ventilators..................... 312
5-4. Using the interior lights Interior lights list ............................ 315
5-5. Using the storage features List of storage features ............... 318
Luggage compartment features .......................................................... 324
5-6. Using the other interior features Other interior features .............. 329
Garage door opener ................... 341
Compass ......................................... 346
5Interior features

4TABLE OF CONTENTS
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................... 350
Cleaning and protecting the vehi- cle interior .................................... 353
6-2. Maintenance Maintenance requirements ..... 356
General maintenance ................ 357
Emission inspection and mainte- nance (I/M) programs ............ 360
6-3. Do-it-yourself maintenance Do-it-yourself service precautions............................................................ 361
Hood.................................................. 363
Positioning a floor jack............... 363
Engine compartment.................. 365
12-volt battery................................ 370
Tires ................................................... 374
Tire inflation pressure................. 380
Wheels.............................................. 382
Air conditioning filter..................383
Windshield wiper inserts........... 385
Electronic key battery ................ 386
Checking and replacing fuses ........................................................... 388
Headlight aim................................. 390
Light bulbs ....................................... 392
7-1. Essential information Emergency flashers..................... 402
If your vehicle has to be stopped in an emergency ............................. 402If the vehicle is submerged or water
on the road is rising .................. 403
7-2. Steps to take in an emergency If your vehicle needs to be towed.......................................................... 405
If you think something is wrong .......................................................... 409
If a warning light turns on or a warn- ing buzzer sounds...................... 410
If a warning messa ge is displayed
.......................................................... 420
If you have a flat tire ..................... 424
If the hybrid syst em will not start
.......................................................... 436
If you lose your keys.................... 438
If the fuel filler door cannot be opened .......................................... 438
If the electronic key does not oper- ate properly ................................. 439
If the 12-volt battery is discharged ............................................................ 441
If your vehicle overheats ........... 446
If the vehicle becomes stuck ... 449
8-1. Specifications Maintenance data (fuel, oil level, etc.) ................................................. 452
Fuel information............................. 461
Tire information ............................ 463
8-2. Customization Customizable features ............... 472
8-3. Initialization Items to initialize ........................... 485
6Maintenance and care
7When trouble arises
8Vehicle specifications

15Pictorial index
When the warning messages are displayed.......................................................... P.420
Parking brake switch ............................................................................................. P.193
Applying/releasing ........................................................................................................... P.193
Precautions for winter season ......................... ............................................................ P.287
Warning buzzer/messages.......................................................................................... P.420
Turn signal lever ...................................................................................................... P.192
Headlight switch......................................................................................................P.198
Headlights/side marker light s/parking lights/tail lights/license plate lights/daytime
running lights ................................................................................................................. ...... P.198
Fog lights
*1........................................................................................................................... P.20 4
Windshield wiper and washer switch ................................................... P.204, 208
Usage......................................................................................................................... P .204, 208
Adding washer fluid ......................................................................................................... P.3 69
Warning messages .......................................................................................................... P.420
Emergency flasher switch .................................................................................. P.402
Hood lock release lever .......................................................................................P.363
Tilt and telescopic steering control switch ...................................................... P.146
Adjustment ............................................................................................................................P.146
Driving position memory
*1............................................................................................. P.140
Air conditioning system ...................................................................................... P.298
Usage.......................................................................................................................... ...........P.298
Rear window defogger...................................................................................................P.298
Audio system
*2
*1
: If equipped
*2: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”.
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20Pictorial index
RX450hL
SRS airbags................................................................................................................ P.30
Floor mats ....................................................................................................................P.24
Front seats ................................................................................................................. P.1 29
Second-row seats ...................................................................................................P.130
Third-row seats ........................................................................................................P.130
Head restraints ........................................................................................................ P.143
Seat belts ..................................................................................................................... P.26
Console box............................................................................................................ P.320
Inside lock buttons .................................................................................................... P.111
Cup holders ..............................................................................................................P.321
Assist grips ...............................................................................................................P.33 7
Rear automatic air conditioning system ........................................................ P.309A
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331-1. For safe use
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For safety and security
RX450hL: Rear side airbags (outboard second-row seats)
Your vehicle is equipped with ADVANC ED AIRBAGS designed based on the US
motor vehicle safety standards (FMVSS20 8). The airbag sensor assembly (ECU)
controls airbag deployment based on information obtain ed from the sensors etc.
shown in the system components diagram above. This information includes crash
severity and occupant information. As th e airbags deploy, a chemical reaction in
the inflators quickly fills the airbags with no n-toxic gas to help restrain the motion of
the occupants.
■If the SRS airbags deploy (inflate)
●Slight abrasions, burns, bruising etc., may
be sustained from SRS airbags, due to the
extremely high speed deployment (infla-
tion) by hot gases.
●A loud noise and white powder will be
emitted.
●Parts of the airbag module (steering
wheel hub, airbag cover and inflator) as
well as the front seats, parts of the front
and rear pillars, and roof side rails, may
be hot for several minutes. The airbag
itself may also be hot.
●The windshield may crack.
●The hybrid system will be stopped and
fuel supply to the engine will be stopped.
( P.72)
●All of the doors will be unlocked.
(P.110)
●The brakes and stop lights will be con-
trolled automatically. ( P.279)
●The interior lights will turn on automati-
cally. (P.316)
●The emergency flashers will turn on auto-
matically. ( P.402)
●For Lexus Enform Safety Connect sub-
scribers, if any of the following situations
occur, the system is designed to send an
emergency call to the response center,
notifying them of the vehicle’s location
(without needing to push the “SOS” but-
ton) and an agent will attempt to speak
with the occupants to ascertain the level
of emergency and assi stance required. If
the occupants are unable to communi-
cate, the agent automatically treats the
call as an emergency and helps to dis- patch the necessary emergency services.
(
P.60)
• An SRS airbag is deployed.
• A seat belt preten sioner is activated.
• The vehicle is involved in a severe rear-end collision.
■SRS airbag deployment conditions (SRS
front airbags)
●The SRS front airbags will deploy in the
event of an impact that exceeds the set
threshold level (the level of force corre-
sponding to an approximately 12 - 18
mph [20 - 30 km/h] frontal collision with
a fixed wall that does not move or
deform).
However, this threshol d velocity will be
considerably higher in the following situa-
tions:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which can
move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in which the
front of the vehicle “u nderrides”, or goes
under, the bed of a truck
●Depending on the type of collision, it is
possible that only the seat belt
pretensioners will activate.
●The SRS seat cushion airbag on the front
passenger seat will not operate if the
occupant is not wearing a seat belt.
■SRS airbag deployment conditions (SRS
side and curtain shield airbags)
●The SRS side and curtain shield airbags
will deploy in the event of an impact that
exceeds the set threshold level (the level
of force corresponding to the impact
force produced by an approximately
3300 lb. [1500 kg] vehicle colliding with

341-1. For safe use
the vehicle cabin from a direction per-
pendicular to the vehicle orientation at an
approximate speed of 12 - 18 mph [20 -
30 km/h]).
●Both SRS curtain shield airbags will
deploy in the event of vehicle rollover.
●All SRS side and curtain shield airbags
will deploy in the even t of a severe frontal
collision.
■Conditions under which the SRS
airbags may deploy (inflate), other than
a collision
The SRS front airbags and SRS side and
curtain shield airbags may also deploy if a
serious impact occurs to the underside of
your vehicle. Some examples are shown in
the illustration.
●Hitting a curb, edge of pavement or hard
surface
●Falling into or jumping over a deep hole
●Landing hard or falling
The SRS curtain shield airbags may also
deploy under the situations shown in the
illustration.
●The angle of vehicle tip-up is marginal.
●The vehicle skids and hits a curb stone.
■Types of collisions that may not deploy
the SRS airbags (SRS front airbags)
The SRS front airbag s do not generally
inflate if the vehicle is involved in a side or
rear collision, if it rolls ov er, or if it is involved in a low-speed frontal collision. But, when-
ever a collision of any type causes sufficient
forward deceleration of the vehicle, deploy-
ment of the SRS fron
t airbags may occur.
●Collision from the side
●Collision from the rear
●Vehicle rollover
■Types of collisions that may not deploy
the SRS airbags (SRS side and curtain
shield airbags)
The SRS side and curtain shield airbags
may not activate if the vehicle is subjected
to a collision from the side at certain angles,
or a collision to the side of the vehicle body
other than the passenger compartment.
●Collision from the side to the vehicle
body other than the passenger compart-
ment
●Collision from the side at an angle
The SRS side airbag s do not generally
inflate if the vehicle is involved in a frontal or
rear collision, if it rolls over, or if it is involved
in a low-speed side or low-speed frontal
collision.
●Collision from the rear
●Vehicle rollover

421-1. For safe use
■Adult*1
■Child*4
■Child restraint system with infant*5
Condition and operation in the front passenger occupant classification
system
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi-cator lights“AIR BAG ON”
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
Devices
Front passenger airbagActivated
Seat cushion airbag in the front passenger sideActivated*2 or deacti-
vated
*3
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF” or
“AIR BAG ON”
*4
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
Devices
Front passenger airbagDeactivated or acti-
vated
*4
Seat cushion airbag in the front passenger sideDeactivated or acti-
vated
*4, 2
Indicator/warning light
“AIR BAG ON” and “AIR BAG OFF” indi- cator lights“AIR BAG OFF”*6
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
Devices
Front passenger airbag
DeactivatedSeat cushion airbag in the front passenger side

631-3. Lexus Enform
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For safety and security
●Safety Connect is available beginning Fall
2009 on select Lexus models (in the
contiguous United St ates only). Contact
with the Safety Connect response center
is dependent upon th e telematics device
being in operative condition, cellular con-
nection availability, and GPS satellite sig-
nal reception, which ca n limit the ability to
reach the response center or receive
emergency service support. Enrollment
and Telematics Subscription Service
Agreement required. A variety of sub-
scription terms is available; charges vary
by subscription term selected and loca-
tion.
●Automatic Collision Notification, Emer-
gency Assistance and Stolen Vehicle
Location will function in the United
States, including Hawaii and Alaska,
Puerto Rico and in Canada, and
Enhanced Roadside Assistance will func-
tion in the United States, Puerto Rico and
in Canada.
●Automatic Collision Notification, Emer-
gency Assistance, Stolen Vehicle and
Enhanced Road Assistance will not func-
tion in the United States Virgin Islands.
For vehicles first sold in the USVI, no
Safety Connect services will function in
and outside the United States Virgin
Islands.
●Safety Connect services are not subject
to section 255 of the Telecommunica-
tions Act and the device is not TTY com-
patible.
■Languages
The Safety Connect re sponse center will
offer support in mult iple languages. The
Safety Connect system will offer voice
prompts in English, Spanish, and French.
Please indicate your language of choice
when enrolling.
■When contacting the response center
You may be unable to contact the response
center if the network is busy.
When the power switch is turned to
ON mode, the red indicator light
comes on for 2 seconds then turns off.
Afterward, the green indicator light
comes on, indicating that the service is
active.
The following indicator light patterns
indicate specific system usage condi-
tions:
 Green indicator light on = Active
service
 Green indicator light flashing =
Safety Connect call in process
 Red indicator light (except at vehi-
cle start-up) = System malfunction
(contact your Lexus dealer)
 No indicator light (off) = Safety
Connect service not active
■Automatic Collision Notification
In case of either airbag deployment or
severe rear-end collision, the system is
designed to automatically call the
response center. The responding agent
receives the vehicle’s location and
attempts to speak with the vehicle
occupants to assess the level of emer-
gency. If the occupants are unable to
communicate, the agent automatically
treats the call as an emergency, con-
tacts the nearest emergency services
provider to describe the situation, and
requests that assistance be sent to the
Safety Connect LED light Indi-
cators
Safety Connect services

691-4. Hybrid system
1
For safety and security
The illustration is an example for explanation and may differ from the actual item.
Warning label
Hybrid battery (traction battery)
Rear electric motor (traction motor)
Service plug
High voltage cables (orange)
Front 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.413) 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 2.9 gal. [ 11.0 L, 2.4 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.)
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 the warning labels attached to the vehi-
cle.
System components
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