2022 LEXUS RX450h light

4618-1. Specifications
8
Vehicle specifications
■Gasoline quality
In very few cases, driveability problems may
be caused by the brand of gasoline you are
using. If driveability problems persist, try
changing the brand of gasoline. If this does
not correct the problem, consult your Lexus
dealer.
■Recommendation of the use of gasoline
containing detergent additives
●Lexus recommends the use of gasoline
that contains detergent additives to avoid
the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains
minimum detergent additives to clean
and/or keep clean intake systems, per
EPA’s lowest additive s concentration pro-
gram.
●Lexus strongly recommends the use of
Top Tier Detergent Gasoline. For more
information on Top Tier Detergent Gaso-
line and a list of marketers, please go to
the official websit e www.toptiergas.com.
■Recommendation of the use of low
emissions gasoline
Gasolines containing oxygenates such as ethers and ethanol, as well as reformulated
gasolines, are available in some cities.
These fuels are typically acceptable for use,
providing they meet other fuel require-
ments.
Lexus recommends these fuels, since the
formulations allow for reduced vehicle
emissions.
■Non-recommendation of the use of
blended gasoline
●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30 (30% ethanol [ ]), E50 (50%
ethanol [ ]), E85 (85% ethanol [ ])
(which are only some examples of fuel
containing more than 15% ethanol).
●If you use gasohol in your vehicle, be sure
that it has an octane
rating no lower than
91.
●Lexus does not recommend the use of
gasoline containing methanol.
■Non-recommendation of the use of gas-
oline containing MMT
Some gasoline contains an octane enhanc-
ing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gas-
oline that contains MMT. If fuel containing
MMT is used, your emission control system
may be adversely affected.
The malfunction indicator lamp on the
instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knock-
Fuel information
You must only use unleaded gaso-
line.
Select premium unleaded gasoline
with an octane rating of 91
(Research Octane Number 96) or
higher required for optimum
engine performance and fuel econ-
omy.
If the octane rating is less than 91,
damage to the engine may occur
and may void the vehicle warranty.
At minimum, the gasoline you use
should meet the specifications of
ASTM D4814 in the U.S.A.
A
BC

4698-1. Specifications
8
Vehicle specifications
CrackingAny parting within the tread, sidewall, or innerliner
of the tire extending to cord material
CT
A pneumatic tire with an inverted flange tire and rim
system in which the rim is designed with rim flanges
pointed radially inward and the tire is designed to fit
on the underside of the rim in a manner that
encloses the rim flanges inside the air cavity of the
tire
Extra load tire
A tire designed to operat e at higher loads and at
higher inflation pressures than the corresponding
standard tire
GrooveThe space between two adjacent tread ribs
InnerlinerThe layer(s) forming the in side surface of a tubeless
tire that contains the inflating medium within the tire
Innerliner separationThe parting of the innerliner from cord material in
the carcass
Intended outboard sidewall
(a) The sidewall that contains a whitewall, bears
white lettering, or bear s manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other sidewall
of the tire, or
(b) The outward facing sidewall of an asymmetrical
tire that has a particular side that must always face
outward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightwe ight trucks or multipur-
pose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissi-
ble inflation pressure for that tire
Maximum permissible inflation pres-
sureThe maximum cold inflation pressure to which a tire
may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimen-
sion requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Tire related termMeaning

4798-2. Customization
8
Vehicle specifications
■Turn signal lever (P.192)
■Automatic light control system ( P.198)
■Lights ( P.198)
*1:Except for Canada
*2: If equipped
■Rain-sensing windshield wipers ( P.204)
FunctionDefault settingCustomized setting
The number of times the turn
signal lights flash automatically
when the turn signal lever is
moved to the first position
during a lane change
3
5
——O7
Off
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before head-
lights automatically turn off
after doors are closed
30 seconds
Off
O—O60 seconds
90 seconds
FunctionDefault settingCustomized setting
Daytime running lightsOnOff*1O—O
Welcome lightingOnOff——O
AFS (Adaptive Front-lighting
System)
*2OnOff——O
Windshield wiper linked head-
light illuminationOnOff——O
FunctionDefault settingCustomized setting
Wiper operation when the
wiper switch is in the “AUTO”
positionRain-sensing opera-
tion
Intermittent opera-
tion linked to vehicle speed (with interval adjuster)
——O
ABC
ABC
ABC
ABC

4838-2. Customization
8
Vehicle specifications
■Illumination (P.315)
*:If equipped
FunctionDefault settingCustomized setting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff——O
Operation when the doors are
unlockedOnOff——O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff——O
Footwell lights and front center
console lightOnOff——O
Instrument panel ornament
light
* and door trim ornament
lights
*
OnOff——O
Time elapsed before the outer
foot lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the outer foot
lights when yo u approach the
vehicle with the electronic key
on your person
OnOff——O
Operation of the outer foot
lights when the doors are
unlocked with the power door
lock switch
OnOff——O
Operation of the outer foot
lights when a door is openedOnOff——O
Fading out of the outer foot
lights when they turn offLongShort——O
ABC

487
9
9
For owners
For owners
.9-1. For ownersReporting safety defects for U.S. owners ........................................ 488
Reporting safety defects for Canadian owners ................... 488
Seat belt instructions for Cana- dian owners (in French)....... 489
SRS airbag instructions for Cana- dian owners (in French)....... 490
Headlight aim instructions for Canadian owners (in French)
........................................................ 498

4989-1. For owners
Véhicules sans phares à faisceau
uniqueBoulon de réglage A
Boulon de réglage B
Véhicules avec phares à faisceau
unique
Boulon de réglage A
Boulon de réglage B 1
Vérifiez que le réservoir de carbu-
rant du véhicule est plein et que la
zone autour des phares n'est pas
déformée.
2 Stationnez le véhicule sur une sur-
face plane.
3 Installez-vous dans le siège con-
ducteur.
4 Balancez le véhicule plusieurs fois.
1 À l'aide d'un tournevis cruciforme,
tournez le boulon A dans n'importe
quel sens.
Mémorisez le sens dans lequel vous avez
tourné et le nombre de tours.
Véhicules sans phares à faisceau
unique
Headlight aim instructions
for Canadian owners (in
French)
The following is a French explana-
tion of headlight aim instructions
from the headlight aim section in
this manual.
Boulons de réglage du mouve-
ment vertical
A
B
A
B
Avant de vérifier le réglage des
phares
Réglage du faisceau des phares

503What to do if... (Troubleshooting)
If you cannot release the shift lever by
depressing the brake pedal with the power
switch in ON mode (P.190)
It is locked automatically to prevent
theft of the vehicle. ( P.183)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( P.153)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or ON mode (the
hybrid system is not operating) for a
period of time. ( P.185)
 The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.413)
The parking brake indicator is on
Is the parking brake released? ( P.193)
Depending on the situation, other
types of warning buzzer may also
sound. (P.410, 420) 
Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
(P.74)
Do one of the following to stop the
alarms:
 Unlock the doors.
 Turn the power switch to ACCES-
SORY or ON mode, or start the
hybrid system.
 Is the message displayed on the
multi-information display?
Check the message on the multi-informa-
tion display. ( P.420)
When a warning light turns on or a
warning message is displayed, refer
to P.410, 420.
 Stop the vehicle in a safe place and
replace the flat tire with the spare
tire. ( P.424)
The steering wheel cannot be
turned after the hybrid system is
stopped
The windows do not open or
close by operating the power
window switches
The power switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle
A warning light turns on or a
warning message is displayed
When a problem has occurred
If you have a flat tire

505Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ...............................383
Front automatic air conditioning system.........................................................................298
Front seat concentr ated airflow mode
(S-FLOW).................................................306
Rear automatic air conditioning system .........................................................................309
ABS (Anti-lock Brake System).............. 278 Warning light ................................................. 412
ACA (Active Cornering Assist) ........... 279
Active Cornering Assist (ACA) ........... 279
Adaptive Front-lighting System (AFS)200
Adaptive Variable Suspension System279
AFS (Adaptive Front- lighting System)200
AHB (Automatic High Beam) .................201
Air conditioning filter ................................. 383
Air conditioning system Air conditioning filter ...............................383
Front automatic air conditioning system.........................................................................298
Front seat concentr ated airflow mode
(S-FLOW).................................................306
Rear automatic air conditioning system .........................................................................309
Airbags Airbag operating conditions................... 33
Airbag precautions for your child ........ 36
Correct driving posture ............................ 25
Curtain shield airbag operating condi- tions .................................................................. 33
Curtain shield airbag precautions ....... 36
Front passenger occupant classification system ............................................................. 39
General airbag precautions ................... 36
Locations of airbags.................................... 30
Modification and disp osal of airbags . 38
Side airbag operating conditions ......... 33
Side airbag precautions ............................ 36 Side and curtain shie
ld airbags operating
conditions ...................................................... 33
Side and curtain shield airbags precau- tions .................................................................. 36
SRS airbags......................................................30
SRS warning light.........................................412
Alarm ....................................................................74 Warning buzzer .......................................... 410
Anchor brackets ..................................... 46, 57
Antennas (smart acc ess system with
push-button start).......................................125
Anti-lock Brake System (ABS).............. 278 Warning light .................................................412
Approach warning...................................... 242
Armrest............................................................ 337
Assist grips ..................................................... 337
Audio system-linked display ...................... 92
Automatic headlight leveling system ....199
Automatic High Beam ................................201
Automatic light control system............... 198
Auxiliary boxes ..................................323, 326
Average fuel economy................................. 90
Average vehicle speed ................................ 90
AWD Control.................................................... 91
B
Back door .......................................................... 113
Back-up light Wattage ......................................................... 460
Back-up lights Replacing light bulbs................... 393, 399
Battery (12-volt battery) Battery checking ........................................370
If the 12-volt battery is discharged ......441
Preparing and checking before winter......................................................................... 286
Warning light .................................................. 411
Battery (traction battery) ............................ 69
Blind Spot Monitor (BSM)....................... 246
Bottle holders ................................................ 322
Brake Brake hold ...................................................... 196