sensor LEXUS ES300h 2022 Repair Manual

3096-1. Maintenance and care
6
Maintenance and care
parking in hot weather
QBrake pads and calipers
Rust may form if the vehicle is parked with
wet brake pads or disc rotors, causing them
to stick. Before parking the vehicle after it is
washed, drive slowly and apply the brakes
several times to dry the parts.
QBumpers
Do not scrub with abrasive cleaners.
QFront side windows water-repellent
coating
OThe following precautions can extend the
effectiveness of the water-repellent coat-
ing.
• Remove any dirt, etc. from the front side
windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp
cloth as soon as possible.
• Do not use wax or glass cleaners that
contain abrasives when cleaning the win-
dows.
• Do not use any metallic objects to
remove condensation build up.
OWhen the water-repellent performance
has become insufficient, the coating can
be repaired. Contact your Lexus dealer.
QPlated portions
If dirt cannot be removed, clean the parts as
follows:
OUse a soft cloth dampened with an
approximately 5% solution of neutral
detergent and water to clean the dirt off.
OWipe the surface with a dry, soft cloth to
remove any remaining moisture.
OTo remove oily deposits, use alcohol wet
wipes or a similar product.
WARNING
QWhen washing the vehicle
Do not apply water to the inside of the
engine compartment. Doing so may
cause the electrical components etc. to
catch fire.
QWhen cleaning the windshield (vehi-
cles with rain-sensing windshield wip-
ers)
Set the wiper switch to off.
If the wiper switch is in “AUTO”, the wip-
ers may operate unexpectedly in the fol-
lowing situations, and may result in hands
being caught or other serious injuries
and cause damage to the wiper blades.
Off
AUTO
OWhen the upper part of the windshield
where the raindrop sensor is located is
touched by hand
OWhen a wet rag or similar is held close
to the raindrop sensor
OIf something bumps against the wind-
shield
OIf you directly touch the raindrop sen-
sor body or if something bumps into
the raindrop sensor
QPrecautions regarding the exhaust
pipes
As exhaust gases cause the exhaust
pipes to become quite hot, do not touch
the exhaust pipes while the hybrid system
is operating or immediately after the
hybrid system is turned off.
When washing the vehicle, be careful not
to touch the exhaust pipes until they have
cooled sufficiently, as touching hot
exhaust pipes can cause burns.
A
B

3687-2. Steps to take in an emergency
QTire pressure warning light
QLTA indicator* (warning buzzer)
*: This light illuminates on the multi-information display.
QIntuitive parking assist OFF indicator (warning buzzer)
Warning lightDetails/Actions
When the light comes on after blinking for approximately 1 minute:
Malfunction in the tire pressure warning system
Have the system checked by your Lexus dealer.
When the light comes on:
Low tire inflation pressure such as
 Natural causes
 Flat tire
 Immediately stop the vehicle in a safe place.
Handling method ( P.371)
Warning lightDetails/Actions
(orange)
Indicates a malfunction in the LTA (Lane Tracing Assist)
 Follow the instructions displayed on the multi-information display.
(  P.200)
Warning lightDetails/Actions
(flashes)
(if equipped)
When a buzzer sounds:
Indicates a malfunction in the intuitive parking assist function
 Have the vehicle inspected by your Lexus dealer immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to a
sensor being dirty or covered with ice, etc.
 Follow the instructions displayed on the multi-information display.
(  P.224)

3697-2. Steps to take in an emergency
7
When trouble arises
QRCTA OFF indicator (warning buzzer)
QRCD OFF indicator (warning buzzer)
QPKSB OFF indicator (warning buzzer)
Warning lightDetails/Actions
(flashes)
When a buzzer sounds:
Indicates a malfunction in the RCTA (Rear Cross Traffic Alert) function
Have the vehicle inspected by your Lexus dealer immediately.
When a buzzer does not sound:
Indicates that the rear bumper around the radar sensor is covered with
dirt, etc. ( P.215)
 Follow the instructions displayed on the multi-information display.
(  P.231)
Warning lightDetails/Actions
(flashes)
(if equipped)
When a buzzer sounds:
Indicates a malfunction in the RCD (Rear Camera Detection) function
 Have the vehicle inspected by your Lexus dealer immediately.
When a buzzer does not sound:
Indicates that the function temporarily cannot be used due to the cam-
era being dirty, etc.
 Follow the instructions displayed on the multi-information display.
(  P.237, 374)
Warning lightDetails/Actions
(flashes)
(if equipped)
When a buzzer sounds:
Indicates a malfunction in the PKSB (Parking Support Brake) system
 Have the vehicle inspected by your Lexus dealer immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possibly due to a
sensor being dirty or covered with ice, etc.
 Follow the instructions displayed on the multi-information display.
(  P.244, 374)

3717-2. Steps to take in an emergency
7
When trouble arises
QBrake hold operated indicator (warning buzzer)
QHybrid system overheat warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
QMaster warning light (warning buzzer)
QWarning buzzer
In some cases, the buzzer may not be heard
due to being in a noisy location or audio
sound.
QFront passenger detection sensor, seat
belt reminder and warning buzzer
OIf luggage is placed on the front passen-
ger seat, the front passenger detection
sensor may cause the warning light to
flash and the warning buzzer to sound
even if a passenger is not sitting in the
seat.
OIf a cushion is placed on the seat, the sen-
sor may not detect a passenger, and the
warning light may not operate properly.
QSRS warning light
This warning light system monitors the air-
bag sensor assembly, front impact sensors,
side impact sensors (front door), side
impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s
seat belt buckle switch, front passenger
occupant classification system (ECU and
sensors), “PASSENGER AIR BAG” indica- tor lights, front passenger’s seat belt buckle
switch, seat belt pret
ensioners, airbags,
interconnecting wiring and power sources.
(  P.28)
QElectric power steering system warning
light (warning buzzer)
When the 12-volt battery charge becomes
insufficient or the voltage temporarily
drops, the electric power steering system
warning light may come on and the warning
buzzer may sound.
QWhen the tire pressure warning light
comes on
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured: P.379
If none of the tires are punctured:
Turn the power switch off then turn it to ON
mode. Check if the tire pressure warning
light comes on or blinks.
Warning lightDetails/Actions
(flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the hybrid system has overheated
Stop the vehicle in a safe place. Handling method ( P.397)
Warning lightDetails/Actions
A buzzer sounds and the warning light comes on and flashes to indicate
that the master warning system has detected a malfunction.
 P.374

3777-2. Steps to take in an emergency
7
When trouble arises
switch off with the shift lever in any position
other than P.
Shift the shift lever to P.
QIf “Shift is in N Release accelerator
before shifting” is displayed
The accelerator pedal has been depressed
when the shift lever is in N.
Release the accelerator pedal and shift the
shift lever to D or R.
QIf “Accelerator pedal is pressed” is dis-
played
The accelerator pedal has been depressed
when the shift lever is in P.
Release the accelerator pedal.
QIf “Press brake when vehicle is stopped
Hybrid system may overheat” is dis-
played
The message may be displayed when the
accelerator pedal is depressed to hold the
vehicle while the vehicle is stopped on an
incline, etc. The hybrid system may over-
heat. Release the accelerator pedal and
depress the brake pedal.
QIf “Auto Power Off to Conserve Bat-
tery” is displayed
Power was turned off due to the automatic
power off function. Next time when starting
the hybrid system, operate the hybrid sys-
tem for approximately 5 minutes to
recharge the 12-volt battery.
QIf “High Power Consumption Power to
Climate Temporarily Limited” is dis-
played
Turn off unnecessary electronic equipment
to reduce power consumption.
Please wait until the power supply returns
to normal.
QIf “Headlight System Malfunction Visit
Your Dealer” is displayed
The following systems may be malfunction-
ing. Have the vehicle inspected by your
Lexus dealer immediately.
OThe LED headlight system
OThe automatic headlight leveling system
(if equipped)
OAHB (Automatic High Beam)
QIf “Radar Cruise Control Unavailable
See Owner’s Manual” is shown
The dynamic radar cruise control with full-
speed range system is suspended tempo-
rarily or until the problem shown in the mes-
sage is resolved. (causes and coping
methods: P.180)
QIf “Radar Cruise Control Unavailable” is
shown
The dynamic radar cruise control with full-
speed range system cannot be used tempo-
rarily. Use the system when it becomes
available again.
QIf a message that indicates the malfunc-
tion of front camera is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( P.180, 364)
OPCS (Pre-Collision System)
OLTA (Lane Tracing Assist)
OAHB (Automatic High Beam)
ORSA (Road Sign Assist) (if equipped)
ODynamic radar cruise control with full-
speed range
QIf a message that indicates the malfunc-
tion of radar sensor is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( P.180, 364)
OPCS (Pre-Collision System)
OLTA (Lane Tracing Assist)
ODynamic radar cruise control with full-
speed range
QIf “Maintenance Required Soon” is dis-
played
Indicates that all maintenance according to
the driven distance on the maintenance
schedule
* should be performed soon.
Comes on approximately 4500 miles
(7200 km) after the message has been
reset. If necessary, perform maintenance.
Please reset the message after the mainte-
nance is performed. ( P.314)
*: Refer to the separate “Scheduled Main-
tenance” or “Owner’s Manual Supple-

4258-2. Customization
8
Vehicle specifications
QWireless remote control (P.100, 104, 108)
QTrunk ( P.108)
*: If equipped
Time elapsed before unlocking
all the door when gripping and
holding the driver’s door handle
2 seconds
Off
O1.5 seconds
2.5 seconds
Number of consecutive door
lock operations2 timesAs many as desiredO
FunctionDefault settingCustomized set-
ting
Wireless remote controlOnOffO
Unlocking operation
Driver’s door
unlocked in one step, all doors
unlocked in two step
All doors unlocked in one stepOO
Locking operation when door
openedOnOffOO
Trunk unlocking operationPress and hold (short)
One short press
O
Push twice
Press and hold (long)
Off
Theft deterrent panic modeOnOffO
FunctionDefault settingCustomized set- ting
Hands Free Power Trunk Lid
(kick sensor)
*OnOffO
FunctionDefault settingCustomized set-tingABC
ABC
ABC

4278-2. Customization
8
Vehicle specifications
QAutomatic light control system (P.163)
QLights ( P.163)
*:Except for Canada
QPCS (Pre-Collision System) ( P.182)
*: The system is automatically enabled each ti me the power switch is turned to ON mode.
QLTA (Lane Tracing Assist) (P.192)
FunctionDefault settingCustomized set-
ting
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
Windshield wiper linked head-
light illuminationOnOffO
FunctionDefault settingCustomized set-ting
Daytime running lights*OnOffOO
Welcome lightingOnOffO
FunctionCustomized setting
Adjust alert timingEarly, Middle, LateO
PCS (Pre-Collision System)*On, OffO
FunctionCustomized setting
Lane centering functionOn, OffO
Alert typeSteering wheel vibration, BuzzerO
Alert sensitivityHigh, StandardO
Vehicle sway warning functionOn, OffO
Vehicle sway warning sensitiv-
ityHigh, Standard, LowO
ABC
ABC
ABC
ABC

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

449What to do if... (Troubleshooting)
In this case, the hybrid system can be
started in a temporary way. ( P.390)
Is the 12-volt battery discharged?
( P.391)
 Is the power switch in ON mode?
If you cannot release the shift lever
by depressing the brake pedal with
the power switch in ON mode
( P.156)
 It is locked automatically to prevent
theft of the vehicle. ( P.149)
 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.132)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or ON mode
(hybrid system is not operating) for
a period of time. ( P.152) 
The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing
the seat belts? ( P.367)
 The parking brake indicator is on
Is the parking brake released? ( P.159)
Depending on the situation, other
types of warning buzzer may also
sound. ( P.364, 374)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
( P.68)
To stop the alarm, turn the power
switch to 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.374)
 When a warning light turns on or a
warning message is displayed, refer
to P.364, 374.
The shift lever cannot be shifted
from P even if you depress the
brake pedal
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

452Alphabetical index
C
Card key .......................................................... 100
Care ......................................................... 308, 311Aluminum wheels ..................................... 308
Exterior .......................................................... 308
Interior ................................................................ 311
Seat belts........................................................... 311
Cargo capacity...............................................146
Cargo hooks ................................................. 288
Center Display ............................................. 266
Chains ................................................................261
Child-protectors............................................107
Child restraint system................................... 43 Fixed with a LATCH system ..................50
Fixed with a seat belt....................................47
Front passenger occupant classification system ..............................................................37
Points to remember .................................... 43
Riding with children ..................................... 43
Types of child restraint system installation method ........................................................... 44
Using an anchor bracket .......................... 53
Child safety ....................................................... 43 12-volt battery precautions .......329, 394
Airbag precautions...................................... 33
Child restraint system................................. 44
Heated steering wheel and seat heater precautions................................................ 278
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................135
Power window lock switch..................... 132
Power window precautions ................... 132
Rear door child-protectors ....................107
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 43
Trunk precautions ...................................... 108
Cleaning ................................................. 308, 311 Aluminum wheels ..................................... 308
Exterior .......................................................... 308
Interior ................................................................ 311 Radar sensor ........................................177, 215
Seat belts ........................................................... 311
Clock ............................................... 76, 80, 289
Coat hooks..................................................... 297
Compass ......................................................... 303
Condenser ..................................................... 326
Console box .................................................. 286
Console box light ........................................ 286
Cooling system............................................. 325 Engine overheating.................................. 396
Hybrid system overheating .................. 397
Cornering lights .............................................165 Replacing light bulbs................................352
Cruise control Dynamic radar cruise control with full-speed range ..............................................204
Cup holder ..................................................... 286
Current fuel consumption .......................... 87
Curtain shield airbags .................................. 28
Customizable features ................................421
Custom mode .................................................219
D
Daytime running light system ...................163
Defogger Outside rear view mirrors....................... 271
Rear window .................................................. 271
Windshield ...................................................... 271
Dimension ...................................................... 402
Dinghy towing................................................. 147
Display BSM (Blind Spot Monitor)......................214
Dynamic radar cruise control with full-speed range ..............................................204
Energy monitor ..............................................95
Head-up display..............................................91
Intuitive parking assist .............................. 222
LTA (Lane-Tracing Assist) .....................197
Multi-information display ..........................85
Parking Support Brake function (rear pedestrians)................................................ 251
RCD (Rear Camera Detection) ........236