2019 TOYOTA HIGHLANDER sensor

1753-4. Adjusting the steering wheel and mirrors
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Operation of each component
HIGHLANDER_U
Auto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of vehi cles
behind, the reflected light is automatically reduced.
Changing automatic anti- glare function mode
ON/OFF
When the automatic anti-glare
function is in ON mode, the indica-
tor illuminates.
The function will set to ON mode
each time the engine switch is
turned to IGNITION ON mode.
Pressing the button turns the func-
tion to OFF mode. (The indicator
also turns off.)

■ To prevent sensor error (vehicles with an auto anti-glare insid e rear view
mirror)
Indicator
To ensure that the sensors operate prop-
erly, do not touch or cover them.
WARNING
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an ac cident,
resulting in death or serious injury.

2434-3. Operating the lights and wipers
4
Driving
HIGHLANDER_U■
Headlight control sensor
■ Automatic light off system
Vehicles without a smart key system
● When the headlights are on: The headlights and tail lights turn off 30 sec-
onds after the engine switch is turned to the “ACC” or “LOCK” p osition and
any of the doors is opened and closed. (The lights turn off imm ediately if
on the key is pressed after all the doors are locked.)
● When only the tail lights are on: The tail lights turn off automatically if the
engine switch is turned to the “ACC” or “LOCK” position and the driver’s
door is opened.
To turn the lights on again, turn the engine switch to “ON” pos ition, or turn the
light switch off once and then back to or .
If any of the doors is kept open, the lights automatically turn off after 20 min-
utes.
Vehicles with a smart key system
● When the headlights are on: The headlights and tail lights turn off 30 sec-
onds after the engine switch is turned to ACCESSORY mode or tur ned off
and any of the doors is opened and closed. (The lights turn off immediately if
on the key is pressed after all the doors are locked.)
● When only the tail lights are on: The tail lights turn off automatically if the
engine switch is turned to ACCESSORY mode or turned off and the driver’s
door is opened.
To turn the lights on again, turn the engine switch to IGNITION ON mode, or
turn the light switch off once and then back to or .
If any of the doors is kept open, the lights automatically turn off after 20 min-
utes. The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.

2444-3. Operating the lights and wipers
HIGHLANDER_U■
Light reminder buzzer
Vehicles without a smart key system
A buzzer sounds when the engine switch is turned to the “LOCK” or “ACC”
position and the driver’s door is opened while the lights are t urned on.
Vehicles with a smart key system
A buzzer sounds when the engine switch is turned off or turned to ACCES-
SORY mode and the driver’s door is opened while the lights are turned on.
■ Battery-saving function
In the following conditions, the remaining lights will go off automatically after
20 minutes in order to prevent the vehicle battery from being d ischarged:
● The headlights and/or tail lights are on.
● Vehicles without a smart key system:
The engine switch is turned to the “ACC” or “LOCK” position.
Vehicles with a smart key system:
The engine switch is turned to ACCESSORY mode or turned off.
This function will be canceled in any of the following situatio ns:
● Vehicles without a smart key system:
When the engine switch is turned to the “ON” position.
Vehicles with a smart key system:
When the engine switch is turned to IGNITION ON mode.
● When the light switch is operated.
● When any of the doors is opened or closed.
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 691)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engin e is not
running.

2454-3. Operating the lights and wipers
4
Driving
HIGHLANDER_U
Push the lever away from you
with the headlight switch in the
or position.
Press the Automatic High
Beam switch.
The Automatic High Beam indica-
tor will come on when the system
is operating.
Automatic High Beam
The Automatic High Beam uses a camera sensor located behind
the upper portion of the windshi eld to assess the brightness of
the lights of vehicles ahead, streetlights, etc., and automatic ally
turns the high beams on or off as necessary.
WARNING
■Limitations of the Automatic High Beam
Do not overly rely on the Automatic High Beam. Always drive saf ely, taking
care to observe your surroundings and turning the high beams on or off
manually if necessary.
■ To prevent incorrect operation o f the Automatic High Beam syste m
Do not overload the vehicle.
Activating the Automatic High Beam
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2474-3. Operating the lights and wipers
4
Driving
HIGHLANDER_U
■Conditions to turn the high beams on/off automatically
●When all of the following conditions are met, the high beams will be turned
on automatically (after approximately 1 second):
• The vehicle speed is approximately 21 mph (34 km/h) or more.
• The area ahead of the vehicle is dark.
• There are no vehicles ahead with headlights or tail lights turned on.
• There are few streetlights on the road ahead.
● If any of the following conditions is met, the high beams will turn off automat-
ically:
• The vehicle speed is below approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Vehicles ahead have their headlights or tail lights turned on.
• There are many streetlights on the road ahead.
■ Camera sensor detection information
●The high beams may not be automatically turned off in the follo wing situa-
tions:
• When a vehicle suddenly appears from around a curve
• When the vehicle is cut in front of by another vehicle
• When vehicles ahead cannot be detected due to repeated curves, road dividers or roadside trees
• When vehicles ahead appear in a faraway lane on a wide road
• When the lights of vehicles ahead are not on
● The high beams may be turned off if a vehicle ahead that is usi ng fog lights
without its headlights turned on is detected.
● House lights, street lights, traffic signals, and illuminated billboards or signs
and other reflective objects may cause the high beams to change to the low
beams, or the low beams to remain on.
● The following factors may affect the amount of time taken for t he high
beams to turn on or off:
• The brightness of the headlights, fog lights, and tail lights of vehicles
ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the r oad surface,
etc.)
• The number of passengers and amount of luggage in the vehicle
● The high beams may turn on or off unexpectedly.
● Bicycles or similar vehicles may not be detected.
● In the following situations the system may not be able to correctly detect the
surrounding brightness level. This may cause the low beams to r emain on
or the high beams to flash or dazzle pedestrians or vehicles ah ead. In such
a case, it is necessary to manually switch between the high and low beams.

2484-3. Operating the lights and wipers
HIGHLANDER_U• When driving in inclement weather (heavy rain, snow, fog, sand
storms,
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 head lights, 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 prec eding vehi-
cle
• When driving through an area of intermittently changing brightness and
darkness
• When frequently and repeatedly 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 w inding
road
• When there is a highly reflective object ahead of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, suc h as a con-
tainer 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 repeatedly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling
pedestrians 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 m et.
• The headlight switch is in or .
• The headlight switch lever is in the high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to the “ON” position (vehicles without a smart key
system) or IGNITION ON mode (vehicles with a smart key system).
Within 30 seconds after , repeat pulling the headlight switch l ever to the
original position then pushing it to the high beam position qui ckly 10 times,
then leave the lever in the high beam position.
If the sensitivity is changed, the Automatic High Beam indicato r will turn on
and off 3 times.
Automatic High Beam (headlights) may turn on even when the vehicle is
stopped.
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2514-3. Operating the lights and wipers
4
Driving
HIGHLANDER_U
Rain-sensing windshield wipers
With “AUTO” selected, the wipers will operate automatically whe n the
sensor detects falling rain. The system automatically adjusts w iper
timing in accordance with ra in volume and vehicle speed.
Rain-sensing windshield wiper operation
*1 or *2
Low speed windshield
wiper operation
*1 or *2
High speed windshield
wiper operation
*1 or *2
Temporary operation
*1: For U.S.A.
*2: For Canada
When AUTO mode is selected, the s ensor sensitivity can be adjusted
by turning the switch ring.
Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual oper-
ation
Pulling the lever operates the wip-
ers and washer.
Wipers will automatically operate a
couple of times after the washer
squirts.
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2524-3. Operating the lights and wipers
HIGHLANDER_U
■The windshield wiper and washer can be operated when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The engine switch is in IGNITION ON mode.
■ Dripping prevention wiper sweep (vehicles with rain-sensing win dshield
wipers)
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 wip er operation (vehicles with rain-sensing
windshield wipers)
Even when the wipers are not in “AUTO” mode, wiper operation va ries
depending on vehicle speed when the washer is being used (delay until drip
prevention wiper sweep occurs).
■ Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to the “AUTO” position while the engine switch is
in IGNITION ON mode, the wiper will operate once to show that “ AUTO”
mode is activated.
● When the sensor sensitivity ring is turned toward high while in “AUTO”
mode, the wipers will operate once to indicate that the sensor sensitivity is
enhanced.
● If the temperature of the raindrop sensor is 194 F (90 C) or higher, or 5 F
(-15 C) or lower, automatic operation may not occur. In this case, o perate
the wipers in any mode other than “AUTO”.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washe r fluid in the
windshield washer fluid reservoir. ● The raindrop sensor judges the amount
of raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs etc. are
present on the windshield.