2020 Lexus IS350 Owner's Manual / LEXUS 2020 IS300,IS350 OWNER'S MANUAL (OM53F29U)

2094-3. Operating the lights and wipers
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
●Bicycles or similar vehicles may not be detected.
●In the following situations the system may not be able to correctly detect the surround-
ing brightness level. This may cause the low beams to remain on or the high beams to
flash or dazzle pedestrians or vehicles ahead. In such a case, it is necessary to manually
switch between the high and low beams.
• When driving in inclement weather (heavy rain, snow, fog, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or damaged
• When the camera sensor is deformed or dirty
• When the temperature of the camera sensor is extremely high
• When the surrounding brightness level is equal to that of headlights, tail lights or fog
lights
• When headlights or tail lights of vehicles ahead are turned off, dirty, changing color,
or not aimed properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeated ly driving ascending/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object ahea d of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as a container on a
truck
• When the vehicle's headlights are damaged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams repeat- edly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling pedestri-
ans or other drivers
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are met.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to IGNITION ON mode.
Within 30 seconds after , repeat pulling the he adlight switch lever to the original
position then pushing it to the high beam position quickly 10 times, then leave the lever
in high beam position.
If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3
times.
Automatic High Beam (head lights) may turn on even the vehicle is stopped.
1
2
32
4

2104-3. Operating the lights and wipers
IS350 AWD/IS350/IS300 AWD/IS300_U
Operating the lever operates the wipe rs or washer as follows. The lever
will return to its original position after operation.
Intermittent windshield wipe rs with interval adjuster
(U.S.A.) or (Canada)
Up 2 levels
Up 1 level
(U.S.A.) or (Canada)
Down 1 level (U.S.A.) or (Canada)
Down 2 levels
Windshield wipers and washer
Operating the wiper lever
1
2
3
4
or or or
OffTemporary operationTemporaryoperationIntermittent operationHigh speedoperation
Intermittent
operationOffOffLow speedoperationHigh speed operation
Low speed operationOffIntermittent operationHigh speedoperationHigh speedoperation
High speed operationOffLow speedoperationNo changeNo change
Status
before
operation
Operation

2114-3. Operating the lights and wipers
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
Wiper intervals can be adjusted when intermittent operation is selected.
Increases the intermittent windshield
wiper frequency
Decreases the intermittent wind-
shield wiper frequency
The intermittent wind shield wiper oper-
ates more frequently as vehicle speed
becomes higher.
Washer/wiper dual opera-
tion
Pulling the lever op erates the wipers
and washer.
The wipers will automatically operate a
couple of times afte r the washer squirts.
Vehicles with headlight cleaners: When
the engine switch is in IGNITION ON
mode and the headlights are on, if the
lever is pulled, th e headlight cleaners
will operate once. After this, the head-
light cleaners will operate every 5th
time the lever is pulled.
5
6
7

2124-3. Operating the lights and wipers
IS350 AWD/IS350/IS300 AWD/IS300_U
Rain-sensing windshield wipers (U.S.A.) or (Canada)
Up 2 levels
Up 1 level
(U.S.A.) or (Canada)
Down 1 level (U.S.A.) or (Canada)
Down 2 levels
AUTO mode on/off switch
With AUTO mode selected, the wipers will operate automatically when the sensor
detects falling rain. The system automatically adjusts wiper timing in accordance with
rain volume and vehicle speed.
The AUTO mode indicator will turn on when AUTO mode is selected.
*: After temporary operation, the mode will return to AUTO mode.
AUTO mode
indicator
1
2
3
4
5
or or
or
OffTemporary operationTemporary operationLow speedoperationHigh speed operation
Low speed operationOffOffHigh speed operationHigh speed operation
High speed operationOffLow speedoperationNo changeNo change
AUTO modeIntermittent operation
Off
Temporaryoperation*Low speed operationHigh speed operation
ContinuouslyNo change
Operation
Status
before
operation

2134-3. Operating the lights and wipers
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
When AUTO mode is selected, the sensor sensitivity can be adjusted by turning
the switch ring.
Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual opera-
tion
Pulling the lever op erates the wipers
and washer.
The wipers will automatically operate a
couple of times afte r the washer squirts.
Vehicles with headlight cleaners: When
the engine switch is in IGNITION ON
mode and the headlights are on, if the
lever is pulled, th e headlight cleaners
will operate once. After this, the head-
light cleaners will operate every 5th
time the lever is pulled.
The wipers can be used as intermittent windshield wipers, which operate regard-
less of vehicle speed or amount of rain drops. The intermittent windshield wiper
operation can be switched wh en the vehicle is stopped and the wiper is off. The
wiper operation cannot be switched duri ng AUTO mode or while the intermit-
tent windshield wi pers are operating.
Press and hold until the AUTO
mode indicator stops flashing.
If is pressed and held until the
AUTO mode indicator stops flashing
again, it will return to its previous state.
The wiper can be switched when the
vehicle is stopped and the wipers are off.
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7
8
Switching between the intermittent windshield wipers and rain-sensing
windshield wipers (vehicles with rain-sensing windshield wipers)

2144-3. Operating the lights and wipers
IS350 AWD/IS350/IS300 AWD/IS300_U
■Operation of the intermittent windsh ield wipers with interval adjuster
(U.S.A.) or (Can-
ada)
Move the lever up by 2
levels
Move the lever up by 1 level
(U.S.A.) or (Canada)
Move the lever down by 1
level (U.S.A.) or (Can-
ada)
Move the lever down by
2 levels
1
2
3
4
or or or
OffTemporary operationTemporaryoperationIntermittent operationHigh speedoperation
Intermittent operationOffOffLow speedoperationHigh speed operation
Low speed operationOffIntermittent operationHigh speedoperationHigh speedoperation
High speed
operationOffLow speedoperationNo changeNo change
Status
before
operation
Operation

2154-3. Operating the lights and wipers
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
Wiper intervals can be adjusted when intermittent operation is selected.
Increases the intermittent wind-
shield wiper frequency
Decreases the intermittent wind-
shield wiper frequency
The intermittent windshield wiper
operates more frequently as vehicle
speed becomes higher.
Washer/wiper dual oper-
ation
Pulling the lever operates the wipers
and washer.
The wipers will automatically operate
a couple of times after the washer
squirts.
Vehicles with headlight cleaners:
When the engine switch is in IGNI-
TION ON mode and the headlights
are on, if the lever is pulled, the head-
light cleaners will operate once.
After this, the headlight cleaners will
operate every 5th time the lever is
pulled.
5
6
7

2164-3. Operating the lights and wipers
IS350 AWD/IS350/IS300 AWD/IS300_U
■The windshield wiper and washer can be operated when
The engine switch is in IGNITION ON mode.
■Dripping prevention wiper sweep
After performing a washing and wiping operation several times, the wipers operate one
more time after a short delay to prevent dripping.
However, this final wiper operation will not be performed while driving.
■Effects of vehicle speed on wiper operation (vehicles with rain-sensing windshield wip-
ers)
Vehicle speed affects the following even when the wipers are not in AUTO mode.
●Intermittent wiper interval
●Wiper operation when the washer is being used (delay until drip prevention wiper
sweep occurs)
With low speed windshield wi per operation selected, wiper operation will be switched
from low speed to intermittent wiper operation only when the vehicle is stationary.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper is turned to AUTO mode wh ile the engine switch is in IGNITION ON
mode, the wipers will operate once to show that AUTO mode is activated.
●If the temperature of the raindrop sensor is 185°F (85°C) or higher, or -22°F (-30°C)
or lower, automatic operation may not occur. In this case, operate the wipers in any
mode other than AUTO mode.
■When the windshield wipers are in tempor ary operation (vehicles with rain-sensing
windshield wipers)
AUTO mode cannot be activa ted even if is pressed.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the windshield
washer fluid reservoir.
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is adopted. It may not oper-
ate properly when sunlight from the rising or
setting of the sun inte rmittently strikes the
windshield, or if bugs etc. are present on the
windshield.