TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

PRIUS PRIME_OM_OM47D71U_(U)
3615-3. Operating the lights and wipers
5
Driving
●In the situations shown below, the system may not be able to accurately
detect surrounding brightness levels. This may cause the low beams to
remain on or the high beams to cause problems for pedestrians, vehicles
ahead or other parties. In these cases, manually switch between the high
and low beams.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The front camera is deformed or dirty.
• The front camera temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are
changing color, or are not aimed properly.
• 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 tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a
truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched between in
an abnormal manner.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.

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PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
■Temporarily lowering sensor sensitivity
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Turn the power switch off while the following conditions are met.
• The headlight switch is in the or position.
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the power switch to ON mode.
Within 60 seconds after step , repeat pulling the headlight 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 (headlights) may turn on even the vehicle is stopped.
■If “Headlight System Malfunction Visit Your Dealer” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your Toy-
ota dealer.
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363
PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
5
Driving
Fog light switch
Ty p e A
Turns the fog lights off
Turns the fog lights on
: If equipped
The fog lights offer improved visibility in difficult driving condi-
tions, such as in rain and fog.
Operating instructions
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PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
Ty p e B
Turns the fog lights off
Turns the fog lights on
■Fog lights can be used when
The headlights are on in low beam.
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NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.

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PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
5
Driving
Windshield wipers and washer
Operating the lever operates the wipers or washer as follows.
■Intermittent windshield wipers with interval adjuster (if
equipped)
Ty p e A
Off
Intermittent operation
Low speed operation
High speed operation
Temporary operation
Ty p e B
Off
Intermittent operation
Low speed operation
High speed operation
Temporary operation
Operating the wiper lever
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366
PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
Wiper intervals can be adjusted when intermittent operation is
selected.
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency
Washer/wiper dual
operation
Pulling the lever operates the
wipers and washer.
The wipers will automatically
operate a couple of times after
the washer squirts.
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PRIUS PRIME_OM_OM47D71U_(U)
3675-3. Operating the lights and wipers
5
Driving
■Rain-sensing windshield wipers (if equipped)
Ty p e A
Off
Rain-sensing opera-
tion
Low speed operation
High speed operation
Temporary operation
Ty p e B
Off
Rain-sensing operation
Low speed operation
High speed operation
Temporary operation
When is selected, the wipers will operate automatically when the
sensor detects falling rain. The system automatically adjusts wiper tim-
ing in accordance with rain volume and vehicle speed.
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PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
The sensor sensitivity can be adjusted when is selected.
Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual
operation
Pulling the lever operates the
wipers and washer.
The wipers will automatically
operate a couple of times after
the washer squirts.
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PRIUS PRIME_OM_OM47D71U_(U)
3695-3. Operating the lights and wipers
5
Driving
■The windshield wipers and washer can be operated when
The power switch is in ON mode.
■Dripping prevention wiper sweep (vehicles with rain-sensing windshield
wipers)
After washing and wiping operation several times, the wipers operate one
more time after a short delay to prevent dripping. However, this function will
not operate while driving.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to the position while the power switch is in
ON mode, the wipers will operate once to show that AUTO mode is acti-
vated.
●If the wiper sensitivity is adjusted to higher, the wiper may operate once to
indicate the change of sensitivity.
●If the temperature of the raindrop sensor is 185F (85C) or higher, or 5F
(-15C) or lower, automatic operation may not occur. In this case, operate
the wipers in any mode other than AUTO mode.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked, if there is washer fluid in the
washer fluid tank.
■Customization
Settings of AUTO mode operation can be changed.
(Customizable features: P. 753) ●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.

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PRIUS PRIME_OM_OM47D71U_(U)
5-3. Operating the lights and wipers
WARNING
■Caution regarding the use of windshield wipers in AUTO mode (vehi-
cles with rain-sensing windshield wipers)
The windshield wipers may operate unexpectedly if the sensor is touched or
the windshield is subject to vibration in AUTO mode. Take care that your fin-
gers, etc. do not become caught in the windshield wipers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility. This
may lead to an accident, resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■When a nozzle becomes blocked
In this case, contact your Toyota dealer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.
■To prevent 12-volt battery discharge
Do not leave the wipers on longer than necessary when the hybrid system
is off.