sensor Lexus ES300h 2018 (OM33D45U) Workshop Manual

ES300h_OM_OM33D45U_(U)
4216-4. Using the other interior features
6
Interior features
NOTICE
■To avoid the compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror.
Doing this may cause the compass sensor to malfunction.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth’s mag-
netic field is subject to interferen ce by artificial magnetic fields.
●During calibration, do not operate electric systems (moon roof, power windows, etc.)
as they may interfere with the calibration.

ES300h_OM_OM33D45U_(U)
4317-1. Maintenance and care
7
Maintenance and care
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent.
●Wash detergent off with water immediately after use.
●To protect the paint from damage, make sure to observe the following precautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or park-
ing in hot weather
■Bumpers and side moldings
Do not scrub with abrasive cleaners.
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components, etc., to be damaged or catch fire.
■When cleaning the windshield (vehicles with rain-sensing windshield wipers)
●When the upper part of the windshield where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close to the raindrop sensor
●If something bumps against the windshield
●If you directly touch the raindrop sensor bo dy or if something bumps into the raindrop
sensor
■Precautions regarding exhaust pipe
Exhaust gases cause exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until they have cooled suffi-
ciently, as touching hot exhaust pipe can cause burns.
■Precaution regarding the Blin d Spot Monitor (if equipped)
If the paint of the rear bumper is chipped or scratched, the system may malfunction. If
this occurs, consult your Lexus dealer.
Set the wiper switch to off.
If the switch is in “AUT O”, the wipers may oper-
ate unexpectedly in the following situations,
and may result in hands being caught or other
serious injuries and cause damage to the wiper
blades.
Off

5048-2. Steps to take in an emergency
ES300h_OM_OM33D45U_(U)
Electric power steering system warning light (warning buzzer)
Indicates a malfunction in the EPS (Electric Power Steering) sys-
tem
→ Have the vehicle inspected by your Lexus dealer immediately.
(Flashes or illuminates)
PCS warning light
Indicates a malfunction in the PCS (Pre-Collision System) or that
the system is temporarily unavailable due to the vehicle being
extremely hot/cold, or dirt around a front sensor, etc.
(→ P. 215, 509)
→ Follow the instructions displayed on the multi-information dis-
play. ( →P. 215, 509)
If the PCS (Pre-Collision System ) or VSC (Vehicle Stability Con-
trol) system is disabled, the PC S warning light will illuminate.
→ P. 215
Slip indicator light
Indicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
→ Have the vehicle inspected by your Lexus dealer immediately.
The light will flash when the ABS, VSC or TRAC is operating.
Low fuel level warning light Indicates that remaining fuel is approximately 2.6 gal. (9.7 L,
2.1 Imp.gal.) or less
→ Refuel the vehicle.
Seat belt reminder light (warning buzzer)*
Warns the driver and/or front passenger to fasten their seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warnin g system has detected a malfunc-
tion.
→ P. 509
Warning lightWarning light/Details/Actions

5058-2. Steps to take in an emergency
ES300h_OM_OM33D45U_(U)
8
When trouble arises
*: Driver’s and front passenger’s seat belt warning buzzer: The driver’s seat belt warning buzzer sounds to alert the driver that his or her seat belt
is not fastened. Once the power switch is turned to ON mode, the buzzer sounds for
6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer sounds
once. If the seat belt is st ill unfastened after 30 seconds, the buzzer will sound inter-
mittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will sound
in a different tone for 20 more seconds.
The front passenger’s seat belt warning buzzer sounds to alert the front passenger
that his or her seat belt is not fastened. Th e buzzer sounds once if the vehicle reaches
a speed of 12 mph (20 km/h). If the seat belt is still unfastened after 30 seconds, the
buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still unfastened,
the buzzer will sound in a different tone for 20 more seconds.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (front door), side impact se nsors (front), side impact sensors (rear),
driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occupant
classification system (ECU and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF”
indicator light, front passenger’s seat belt buckle switch, seat belt pretensioner assem-
blies, airbags, interconnectin g wiring and power sources.
( → P. 38)
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( →P. 506)
•Flat tire ( →P. 513)
→ Adjust the tire inflation pres sure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by your Lexus dealer.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pr essure warning system (→P. 506)
→ Have the system checked by your Lexus dealer.
(Flashes)
(If equipped)
“AFS OFF” indicator
Indicates a malfunction in the adaptive front-lighting system
→Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions

5068-2. Steps to take in an emergency
ES300h_OM_OM33D45U_(U)
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.
●If a cushion is placed on the seat, the sens or may not detect a passenger, and the warn-
ing light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insu fficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning buzzer
may sound.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fu el tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■When the tire pressure warning light comes on
Check the tire inflation pressu re and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not tu rn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure wa rning system may not function properly
→ P. 465
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
power switch is turned to ON mode, ha ve it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.

568
ES300h_OM_OM33D45U_(U)9-2. Customization
■Automatic light control system (
→P. 182)
■Lights ( →P. 182)
*:Except for Canada
■Intuitive parking assi st (if equipped) (→P. 237)
■Automatic air conditioning system ( →P. 384)
FunctionDefault settingCustomized
setting
Adjust the sensitivity of the
ambient light sensor0-2 to 2O—O
Adjust the time
elapsed before the headlights
automatically turn off
30 seconds
Off
O—O60 seconds
90 seconds
Welcome light illumination
controlOnOff——O
123
FunctionDefault settingCustomized setting
Daytime running lights can be
disabled*OnOffO—O
123
FunctionDefault settingCustomized setting
Detection distance of the
front/rear center sensorFarNearO—O
Alert volume can be adjusted31 to 5O—O
Display setting
(when intuitive parking assist
is operating)All sensors displayedDisplay offO—O
123
FunctionDefault settingCustomized
setting
A/C Auto switch operationOnOffO—O
Exhaust gas sensor sensitivity0-3 to 3O—O
123

586What to do if... (Troubleshooting)
ES300h_OM_OM33D45U_(U)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
(→ P. 170)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (→P. 504)
●The parking brake indicator is on
Is the parking brake released? ( →P. 181)
Depending on the situation, other types of warning buzzer may also sound.
(→ P. 503, 509)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (→ P. 78)
To stop the alarm, turn the power switch to ON mode or start the hybrid system.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. (→ P. 509)
●When a warning light turns on or a warning message is displayed, refer to
P. 503, 509. 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

588Alphabetical index
ES300h_OM_OM33D45U_(U)
Alphabetical index
A/CAir conditioning filter........................ 476
Automatic air conditioning system ................................................. 384
Humidity sensor .................................393
Micro dust and pollen filter ....................................................... 389
ABS (Anti-lock Brake System)
Function .................................................. 272
Warning light ...................................... 503
Adaptive Front-lighting System (AFS) ....................................................... 183
AFS (Adaptive Front-lighting System) ................................................... 183
Air conditioning filter .......................... 476
Air conditioning system Air conditioning filter........................ 476
Automatic air conditioning system ................................................. 384
Humidity sensor ............................... 393
Micro dust and pollen filter ....................................................... 389 Airbags
Airbag operating conditions .......... 43
Airbag precautions for your child ....................................... 39
Airbag warning light ........................503
Correct driving posture .................... 30
Curtain shield airbag operating conditions ....................... 43
Curtain shield airbag precautions .......................................... 39
Front passenger occupant classification system......................... 46
General airbag precautions ........... 39
Locations of airbags.............................37
Modification and disposal of airbags................................................42
Side airbag operating conditions ............................................. 43
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 43
Side and curtain shield airbags precautions ......................... 39
SRS airbags ..............................................37
Alarm ............................................................78 Warning buzzer.................................503
Anchor brackets....................................... 57
Antennas (smart access system with push-button start) .......................121
Anti-lock Brake System (ABS) Function ...................................................272
Warning light .......................................503
Approach warning (dynamic radar cruise control).........................232
Armrest .....................................................407
Assist grip .................................................. 410
Audio input ............................................. 295
A

598Alphabetical index
ES300h_OM_OM33D45U_(U)
Parking assist sensors (intuitive parking assist) .................. 237
Parking brake Operation ................................................. 181
Parking brake engaged warning buzzer .................................. 181
Parking lights Light switch ............................................ 182
Replacing light bulbs ........................492
PCS (Pre-Collision System) Function ................................................. 205
Warning light ...................................... 504
Personal lights........................................ 397
Power control unit .................................... 71
Power control unit coolant Capacity .................................................543
Checking................................................453
Preparing and checking before winter ................................... 280
Radiator ..................................................454
Power easy access system ................ 130
Power outlets ......................................... 406
Power steering (Electric Power
Steering system) ................................ 273 Warning light ...................................... 504
Power switch ........................................... 168 Power trunk opener and closer .........114
Power windows
Door lock linked window operation ...........................146
Jam protection function....................145
Operation................................................145
Window lock switch ..........................145
Pre-Collision System (PCS) Function ..................................................205
Warning light .......................................504
Radar cruise control (dynamic radar cruise control).........................225
Radiator.................................................... 454
Radio
*........................................................ 312
RCTA (Rear Cross Traffic Alert).........................................264
Rear personal lights .............................397
Rear side marker lights Light switch.............................................182
Replacing light bulbs ....................... 492
Rear door sunshades.......................... 408
Rear sunshade Operation............................................. 408
Reverse operation feature ............409
P
R

600Alphabetical index
ES300h_OM_OM33D45U_(U)
SeatsAdjustment ............................................. 129
Adjustment precautions .................. 129
Child seats/child restraint system installation.............................. 57
Cleaning .................................................433
Driving position memory ................ 130
Head restraints ..................................... 135
Power easy access system ............ 130
Properly sitting in the seat ................30
Seat heaters ......................................... 395
Seat position memory....................... 130
Seat ventilators ................................... 395
Sensor Automatic headlight system .......... 184
Humidity sensor .................................393
Inside rear view mirror ....................... 141
Intuitive parking assist ...................... 237
Lexus Safety System+..................... 200
Radar sensor ....................................... 200
Rain-sensing windshield wipers .................................................... 192
Service reminder indicators ............... 82
Shift lever Hybrid transmission........................... 175
If the shift lever cannot be shifted from P ............. 178
Shift lever light ....................................... 396
Shift lock system......................................178
Side airbags ............................................... 37 Side marker lights
Light switch.............................................182
Replacing light bulbs ...........489, 492
Side mirrors Adjusting and folding ........................ 142
Blind Spot Monitor ........................... 264
Linked mirror function when reversing.................................. 143
Mirror position memory ................. 130
Side turn signal lights Replacing light bulbs ....................... 492
Turn signal lever .................................. 180
Smart access system with push-button start Antenna location....................................121
Entry functions ..................................... 108
Starting the hybrid system.............. 168
Snow tires ................................................ 283
Spare tire ................................................... 513 Inflation pressure................................545
Storage location ...................................514
Spark plug ............................................... 543
Specifications......................................... 538
Speedometer ............................................ 86