2013 Lexus ES300h light sensor

720
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
■Driver’s side instrument panel
FuseAmpereCircuit
1ECU-IG1 NO.210
Main body ECU, audio system, shift lock sys-
tem, outside mirror control ECU, tension
reducer, windshield wipers, heated steering
wheel, multi-information display, audio dis-
play, intuitive parking assist, tire pressure
warning system, moon roof, auto anti-glare
inside rear view mirror, raindrop sensor, rear
sunshade, wireless door lock system, power
trunk opener and closer ECU
2ECU-IG1 NO.110
FAN, DEICER, VSC, ABS, charging system,
steering sensor, electronic controlled trans-
mission, electric power steering, gateway
ECU, electric tilt and telescopic steering col-
umn
3PA N E L N O. 25Clock
4TA I L15Parking lights, side marker lights, license
plate lights
5DOOR F/R20Power window, outside mirror control ECU
6DOOR R/R20Po w e r w i n d o w
7DOOR F/L20Power window, outside mirror control ECU
8DOOR R/L20Po w e r w i n d o w
9H-LP LVL7. 5Automatic headlight leveling system
10WA S H E R10Windshield washer
11A/C-IG17. 5Air conditioning system, PTC heater, gauges
and meters, seat heaters and ventilators

7567-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
■SRS warning light
This warning light system monitors the airbag 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), “AIR BAG ON” indicator light,
“AIR BAG OFF” indicator light, front passenger’s seat belt buckle switch, seat belt
pretensioner assemblies, airbags, interconnecting wiring and power sources.
(→ P. 4 0 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel 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 several trips, contact your Lexus dealer as soon
as possible.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.

7727-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
Indicates that the Blind
Spot Monitor sensors or
the surrounding area on
the bumper is dirty or
covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Indicates that the hybrid
system has overheatedThis message may be
displayed when driving
under severe operating
conditions. (For exam-
ple, when driving up a
long steep hill.)
Stop and check.
(→ P. 8 1 6 )
Indicates that remaining
fuel is approximately 2.6
gal. (9.7 L, 2.1 Imp.gal.) or
less
Refuel the vehicle.
Indicates that the “START
STOP ENGINE”
<“POWER”> switch is
turned off or turned to
ACCESSORY mode and
the driver’s door is
opened while the lights
are turned on
Turn the lights off.
Indicates that the driver’s
door was opened with the
shift position in any posi-
tion other than P
Shift the shift position to P.
Warning messageDetailsCorrection procedure
(If equipped)
(Hybrid vehicles)
(Flashes)
(Flashes)
(Hybrid vehicles)

860
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Automatic light control system (→P. 2 2 4 )
■Lights ( →P. 2 2 4 )
*:Except for Canada
FunctionDefault
settingCustom-
ized setting
“Headlamps-On Sensitiv-
ity”
(Adjust the sensitivity of the
ambient light sensor)
Standard-2 to 2O—O——O
“Headlamps Auto-Off
Ti m e r ”
(Adjust the time
elapsed before the head-
lights automatically turn
off)
30 seconds
Off
O—O—OO60 seconds
90 seconds
Welcome light illumination
controlOnOff—————O
123456
FunctionDefault settingCustom-
ized setting
“Daytime Running Lights”
(Daytime running lights
can be disabled)
*
OnOffO—O—OO
123456

862
ES350 300h_OM_OM33A01U_(U)
8-2. Customization
■Illumination (→P. 603)
FunctionDefault
settingCustom-
ized setting
Interior lights illumination
controlOnOff—————O
“Interior Lights Off Timer”
(Time elapsed before the
interior lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
Operation after the
“START STOP ENGINE”
<“POWER”> switch is
turned off
OnOff—————O
Operation when the doors
are unlockedOnOff—————O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff—————O
Footwell lightingOnOff—————O
Outer foot lightsOnOff—————O
“Exterior Lights Off Timer”
(Time elapsed before the
outer foot lights turn off)
15 seconds
Off
O—O—OO7. 5 s e c o n d s
30 seconds
“Ambient illumin. (instru-
ment panel)”
(Enable/disable operation
of the ornament lights on
the instrument panel)*
OnOff—O—OOO
Sensitivity of the ambient
light sensor used for dim-
ming the meter lights etc.
Standard-2 t o +2——O——O
Sensitivity of the ambient
light sensor used for
brightening the meter
lights etc.
Standard-2 t o +2——O——O
123456

886What to do if... (Troubleshooting)
ES350 300h_OM_OM33A01U_(U)●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
(→
P. 7 5 4 )
●The parking brake indicator is on
Is the parking brake released? (→ P. 222)
Depending on the situation, othe r types of warning buzzer may
also sound. ( →P. 751, 761)
●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( →P. 8 4 )
To stop the alarm, turn the “START STOP ENGINE” <“POWER”>
switch to IGNITION ON mode or start the engine system>.
●Is the electronic key left inside the vehicle or the moon roof
opened?
Check the message on the multi-information display.
(→ P. 76 1 )
A warning buzzer sounds during driving
An alarm is activated
and the horn sounds
A warning buzzer sounds wh en leaving the vehicle

898Alphabetical index
ES350 300h_OM_OM33A01U_(U)
Parking assist sensors (intuitive parking assist) .................... 271
Parking brake
Operation .............................................. 222
Parking brake engaged warning buzzer .............................. 768
Parking brake engaged
warning message .......................... 768
Parking lights
Light switch ........................................... 224
Replacing light bulbs ........................ 736
Welcome light illumination control ..........................123
PCS (Pre-Collision System) Function ................................................. 306
PCS OFF switch ................................307
Warning light .......................................753
Warning message ........................ 763, 771, 776
Personal lights........................................ 604
Power control unit ...................................74
Power control unit coolant Capacity .................................................. 831
Checking................................................. 681
Preparing and checking
before winter .................................... 326
Radiator ................................................. 683
Power easy access system .................156
Power outlets ...........................................616
Power steering (Electric Power Steering system) ................................ 299
Warning light .......................................753
Warning message ............................. 764
“Power” switch....................................... 204 Power trunk opener and closer ....... 144
Power windows
Door lock linked window operation ........................... 172
Jam protection function......................171
Operation................................................170
Window lock switch .......................... 170
Pre-Collision System (PCS)
Function ..................................................306
PCS OFF switch ................................ 307
Warning light ....................................... 753
Warning message.........................763, 771, 776
Radar cruise control (dynamic radar cruise control)........................ 248
Radiator.................................................... 683
Radio
*........................................... 379, 496
RBDS (Radio Broadcast
Data Systems)
*......................382, 499
RCTA (Rear Cross
Traffic Alert).......................................... 313
Rear personal lights ............................ 604
Rear side marker lights Light switch........................................... 224
Replacing light bulbs ....................... 736
Welcome light
illumination control.......................... 123
Rear door sunshades...........................623
Rear sunshade Operation.............................................. 623
Reverse operation feature ............ 624
P
R

900Alphabetical index
ES350 300h_OM_OM33A01U_(U)
SeatsAdjustment ............................................... 151
Adjustment precautions .................. 152
Child seats/child restraint
system installation..............................59
Cleaning ................................................ 654
Driving position memory ................ 153
Head restraints..................................... 159
Power easy access system ............ 156
Properly sitting in the seat ................30
Seat heaters ......................................... 620
Seat position memory....................... 153
Seat ventilators ................................... 620
Sensor
Automatic headlight system ......... 226
Humidity sensor ...................... 358, 371
Inside rear view mirror ..................... 166
Intuitive parking assist ........................ 271
LDA (Lane Departure Alert) .......269
Radar sensor ................. 257, 307, 316
Rain-sensing windshield wipers ................................................... 237
Service reminder indicators ...............88
Shift lever Automatic transmission ....................214
Hybrid transmission............................ 217
If the shift lever cannot be shifted from P .............801
Shift lever light ....................................... 603
Shift lock system..................................... 801
Side airbags ............................................... 39 Side marker lights
Light switch........................................... 224
Replacing light bulbs ........... 732, 736
Welcome light illumination
control.................................................... 123
Side mirrors
Adjusting and folding ........................ 167
Blind Spot Monitor ............................. 313
Linked mirror function when reversing................................. 168
Mirror position memory ..................153
Side turn signal lights
Replacing light bulbs ....................... 736
Turn signal lever ................................... 221
Smart access system with push-button start
Antenna location..................................125
Entry functions ...................................... 123
Starting the engine .............................. 197
Starting the hybrid system............. 204
Warning message............................. 765
Snow tires ................................................ 330
Spare tire ..................................................784 Inflation pressure................................835
Storage location .................................785
Spark plug ............................................... 832
Specifications......................................... 824
Speedometer .............................................93
“START STOP ENGINE” switch ....................................................... 197