sensor LEXUS RX350L 2019 Manual PDF

5787-1. Maintenance and care
RX350/RX350L_U
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 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 the exhaust pipes and rear bumper diffusers
Exhaust gasses cause the exhaust pipes and rear bumper diffusers to become quite
hot.
When washing the vehicle, be careful not to touch the pipes and diffusers until they
have cooled sufficiently, as touching hot exhaust pipes and rear bumper diffusers can
cause burns.
■Precautions regarding the rear bumper with Blind 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 wiper switch is in “AUTO”, the wipers may
operate unexpectedly in the following situa-
tions, and may result in hands being caught or
other serious injuries and cause damage to the
wiper blades.
Off

6568-2. Steps to take in an emergency
RX350/RX350L_U
(Flashes or illuminates)
PCS warning lightIndicates 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. 290, 664)
 Follow the instructions displayed on the multi-information dis-
play. ( P. 290, 664)
If the PCS (Pre-Collision System ) or VSC (Vehicle Stability Con-
trol) system is disabled, the PC S warning light will illuminate.
 P. 290
(Flashes)
(If equipped)
ICS OFF indicator When a buzzer sounds:
Indicates a malfunction in the In telligent Clearance Sonar 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.
 Clear the dirt, etc.
Low fuel level warning light
Indicates that remaining fuel is approximately 2.8 gal. (10.8 L,
2.3 Imp. gal.) or less
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*1
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.
(RX350)
(RX350L)Rear passengers’ seat belt reminder light (warning buzzer)*2
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Tire pressure warning light
Indicates the following:
• Low tire pressure due to flat tire;
• Low tire pressure due to natural causes; or
• The tire pressure warnin g system is malfunctioning
 Immediately stop the vehicle in a safe place.
Handling method ( P. 658)
Warning lightWarning light/Details/Actions

6578-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U
*1: 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 engine switch is turned to IGNITION ON mode, the
buzzer sounds for 6 seconds. If the vehicl e reaches a speed of 12 mph (20 km/h), the
buzzer sounds once. If the seat belt is still unfastened after 24 seconds, the buzzer will
sound intermittently for 10 se conds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different to ne 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 24 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.
*2: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning bu zzer sounds to alert the rear passengers
that his or her seat belt is not fastened. The buzzer so unds for 6 seconds after the
vehicle reaches a speed of 20 km/h (12 mph). Then, if the seat belt is still unfastened,
the buzzer will sound in a different tone for 24 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 (rear), driver’s seat position sensor,
driver’s seat belt buckle sw itch, front passenger occupant classification system (ECU and
sensors), “AIR BAG ON” indicator light, “A IR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, driver’s seat belt pretension er, front passenger’s seat belt
pretensioner and force limiter, airbags, in terconnecting wiring and power sources.
(  P. 36)
■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 battery charge becomes insufficien t or the voltage temporarily drops, the
electric power steering system warning li ght may come on and the warning buzzer may
sound.
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. 661
Warning lightWarning light/Details/Actions

7259-2. Customization
9
Vehicle specifications
RX350/RX350L_U
■Power back door (P. 130)
*: If equipped
FunctionDefault settingCustomized setting
Power back door switch opera-
tionPress for 1 secondOne short press—O
Automatic closing of the back
door when loweredOnOff—O
Automatic opening of the back
door using the back door opener
switch
OnOff—O
Power back door opening posi-
tion51 to 5OO
Buzzer volumeLevel 3Level 1—OLevel 2
Power back door/touchless sen-
sor
*On
Power back door:
On
Touchless sensor:
Off
—O
Off
Power back door open/close
buzzer
When the back
door begins to
operate: On
While the back
door is operating:
Off
Off
—O
When the back
door begins to
operate: Off
While the back
door is operating:
On
On
Touchless sensor* sensitivityLevel 2 (standard)Level 1 (lowest) to
level 3 (highest)—O
12

7309-2. Customization
RX350/RX350L_U
■Turn signal lever ( P. 246)
■Automatic light control system ( P. 252)
■Lights (P. 252)
*1:Except for Canada
*2:If equipped
■Rain-sensing windshield wipers* (P. 261)
*:If equipped
FunctionDefault settingCustomized setting
The number of times the turn sig-
nal lights flash automatically
when the turn signal lever is
moved to the first position during
a lane change
3
5
—O7
Off
12
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off after doors
are closed 30 seconds
Off
OO
60 seconds
90 seconds
12
FunctionDefault settingCustomized setting
Daytime running lightsOnOff*1OO
Welcome lightingOnOff—O
AFS (Adaptive Front-lighting
System)
*2OnOff—O
Windshield wiper linked head-
light illuminationOnOff—O
12
FunctionDefault settingCustomized setting
Wiper operation when the wiper
switch is in the “AUTO” positionRain-sensing oper-ationIntermittent opera-tion linked to vehi-
cle speed (with
interval adjuster)
—O
12

7319-2. Customization
9
Vehicle specifications
RX350/RX350L_U
■Intuitive parking assist*1 ( P. 326)
*1: If equipped
*2: When intuitive parking assist is operating.
■BSM (Blind Spot Monitor)* ( P. 313)
*:If equipped
FunctionDefault settingCustomized setting
Detection distance of the front
center sensorFarNearOO
Detection distance of the rear
center sensorFarNearOO
Buzzer volume31 to 5OO
Display setting*2All sensors dis-
playedDisplay offOO
12
FunctionDefault settingCustomized setting
Outside rear view mirror indica-
tor brightnessBrightDimOO
Alert timing for presence of
approaching vehicle (BSM func-
tion only)
Intermediate
Early
OOLate
Only when in blind spot
RCTA buzzer volumeLevel 2Level 1O—Level 3
12

7329-2. Customization
RX350/RX350L_U
■Driving mode select switch ( P. 373)
*: If equipped
■Front automatic air conditioning system ( P. 503)
*:If equipped
■Seat heaters*/seat ventilators* ( P. 522, 523)
*:If equipped
FunctionDefault settingCustomized setting
Powertrain control in customized
mode
*NormalPowerO—Eco
Chassis control in customized
mode*NormalSportO—
Air conditioning operation in
customized mode
*NormalEcoO—
12
FunctionDefault settingCustomized setting
A/C auto switch operationOnOffOO
Exhaust gas sensor sensitivity*Standard-3 to 3OO
12
FunctionDefault settingCustomized setting
Driver’s seat temperature prefer-
ence in automatic modeStandard-2 (cooler) to 2
(warmer)OO
Front passenger’s seat tempera-
ture preference in automatic
modeStandard-2 (cooler) to 2 (warmer)OO
12

754What to do if... (Troubleshooting)
RX350/RX350L_U
●The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts?
( P. 656, 656)
●The parking brake indicator is on
Is the parking brake released? ( P. 247)
Depending on the situation, other types of warning buzzer may also sound.
( P. 654, 661)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 77)
Do one of the following to stop the alarms:
• Unlock the doors.
• Turn the engine switch to ACCESSORY or IGNITION ON mode, or start the engine.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 661)
●When a warning light turns on or a warning message is displayed, refer to
P. 654, 661.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

770Alphabetical index
RX350/RX350L_U
S-FLOW mode ........................................ 511
Seat belts..................................................... 32Adjusting the seat belt ........................ 32
Automatic Locking Retractor......... 33
Child restraint system installation ..............................................55
Cleaning and maintaining the seat belt .............................................. 582
Emergency Locking Retractor ...... 33
How to wear your seat belt ............. 32
How your child should wear the seat belt .............................. 33
Pregnant women, proper seat belt use.................................................... 34
Reminder light and buzzer .......... 656
Seat belt extender................................. 33
Seat belt instructions for Canadian owners...........................739
Seat belt pretensioners ...................... 33
SRS warning light.............................. 654
Seat position memory........................... 172
Seat ventilators ...................................... 523
Seating capacity......................................213 Seats
Adjustment..............................................156
Adjustment precautions...................156
Child seats/child restraint system installation ............................. 55
Cleaning.................................................. 581
Driving position memory................. 172
Folding down the rear seatbacks ............................................. 157
Front seat heaters.............................. 522
Head restraint........................................ 177
Power easy access system ............. 172
Properly sitting in the seat ................ 30
Second-row seat heaters .............. 523
Seat position memory ....................... 172
Seat ventilators.................................... 523
Sensor Automatic headlight system ........ 254
Camera sensor................................... 276
Inside rear view mirror..................... 183
Intuitive parking assist...................... 326
Radar sensor........................................ 276
Rain-sensing windshield wipers................................................... 263
Touchless sensor ................................. 132
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