2021 TOYOTA SIENNA HYBRID windshield wipers

3TABLE OF CONTENTS
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4-1. Before drivingDriving the vehicle......... 208
Cargo and luggage ....... 215
Vehicle load limits ......... 218
Trailer towing (without tow- ing package)................ 219
Trailer towing (with towing package) ..................... 220
Dinghy towing ............... 230
4-2. Driving procedures Power (ignition) switch .. 231
EV drive mode .............. 236
Hybrid transmission ...... 238
Turn signal lever ........... 242
Parking brake ................ 243
Brake Hold .................... 246
4-3. Operating the lights and wipers
Headlight switch ............ 248
AHB (Automatic High Beam) .................................... 250
Fog light switch ............. 254
Windshield wipers and washer......................... 254
Rear window wiper and washer......................... 257
4-4. Refueling Opening the fuel tank cap.................................... 259
4-5. Using the driving support
systems
Toyota Safety Sense 2.0 262
PCS (Pre-Collision System) .................................... 267LTA (Lane Tracing Assist)
.................................... 275
RSA (Road Sign Assist) 285
Dynamic radar cruise control with full-speed range ... 288
BSM (Blind Spot Monitor) .................................... 299
Intuitive parking assist ... 308
RCD (Rear Camera Detec- tion) function ................ 315
PKSB (Parking Support Brake) .......................... 319
Parking Support Brake func- tion (static objects) ...... 323
Parking Support Brake func- tion (rear-crossing vehicles).................................... 329
Driving mode s elect switch
.................................... 333
Driving assist systems ... 335
4-6. Driving tips Hybrid vehicle driving tips.................................... 341
Winter driving tips .......... 343
5-1. Using the ai r conditioning
system and defogger
Front automatic air condition- ing system ................... 348
Re ar automatic air condition-
i

ng system ................... 358
Heated steering wheel/seat heaters/seat ventilators 361
5-2. Using the interior lights Interior lights list ............ 363
4Driving
5Interior features

15Pictorial index
Outside rear view mirrors .................................................P.198
Adjusting the mirror angle ....................................................P.198
Folding the mirrors ...............................................................P.199
Driving position memory
*.....................................................P.178
Defogging the mirrors
*.........................................................P.350
Windshield wipers .............................................. ...............P.254
Precautions against winter season .............................. ........P.343
To prevent freezing (windshield wiper de-icer)
*...................P.350
Precautions against car wash
(Rain-sensing windshield wipers)
*.......................................P.401
Fuel filler door ............................................... .....................P.259
Refueling method ............................................... ..................P.259
Fuel type/fuel tan k capacity .................................................P.520
Tires ....................................................................................P.424
Tire size/inflation pressure ................................... ................P.525
Winter tires/tire chain ........................................ ...................P.343
Checking/rotation/tire pressur e warning system ..................P.424
Coping with flat tires......................................... ............P.481, 491
Hood ....................................................................................P.413
Opening ........................................................ .......................P.413
Engine oil ..................................................... ........................P.521
Coping with overheat ........................................... ................P.511
Warning messages ..............................................................P.477
Headlights/side marke r lights/parking lights ..................P.248
Turn signal lights ...............................................................P.242
Headlights/daytime running lights .............................. .....P.248
Fog lights
*............................................................... ............P.254
Light bulbs of the exterior lights for driving
(Replacing method: P.451, Watts: P.526)
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17Pictorial index
Opening/closing the rear side windows ...............................P.201
Warning messages ..............................................................P.477
Back door ...................................................... .....................P.150
Locking/unlocking ................................................................P.151
Opening from inside the cabin
*............................................P.154
Opening from outside........................................... ........P.152, 153
Warning messages ..............................................................P.477
Outside rear view mirrors .................................................P.198
Adjusting the mirror angle ..................................... ...............P.198
Folding the mirrors ...............................................................P.199
Driving position memory
*.....................................................P.178
Defogging the mirrors
*.........................................................P.350
Windshield wipers .............................................. ...............P.254
Precautions against winter season .............................. ........P.343
To prevent freezing (windshield wiper de-icer)
*...................P.350
Precautions against car wash
(Rain-sensing windshield wipers)
*.......................................P.401
Fuel filler door ............................................... .....................P.259
Refueling method ............................................... ..................P.259
Fuel type/fuel tan k capacity .................................................P.520
Tires ....................................................................................P.424
Tire size/inflation pressure ................................... ................P.525
Winter tires/tire chain ........................................ ...................P.343
Checking/rotation/tire pressur e warning system ..................P.424
Coping with flat tires......................................... ............P.481, 491
Hood ....................................................................................P.413
Opening ........................................................ .......................P.413
Engine oil ..................................................... ........................P.521
Coping with overheat ........................................... ................P.511
Warning messages ..............................................................P.477
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19Pictorial index
Opening/closing the front side windows...............................P.201
Locking/unlocking by using the mechanical key ..........P.133, 504
Warning messages ..............................................................P.477
Sliding doors .................................................. ....................P.137
Locking/unlocking ................................................................P.138
Opening/closing the sliding door ............................... ...........P.139
Opening/closing the rear si de windows ...............................P.201
Warning messages ..............................................................P.477
Back door ...................................................... .....................P.150
Locking/unlocking ................................................................P.151
Opening from inside the cabin
*............................................P.154
Opening from outside........................................... ........P.152, 153
Warning messages ..............................................................P.477
Outside rear view mirrors .................................................P.198
Adjusting the mirror angle ..................................... ...............P.198
Folding the mirrors ...............................................................P.199
Driving position memory
*.....................................................P.178
Defogging the mirrors
*.........................................................P.350
Windshield wipers .............................................. ...............P.254
Precautions against winter season .............................. ........P.343
To prevent freezing (windshield wiper de-icer)
*...................P.350
Precautions against car wash
(Rain-sensing windshield wipers)
*.......................................P.401
Fuel filler door ............................................... .....................P.259
Refueling method ............................................... ..................P.259
Fuel type/fuel tan k capacity .................................................P.520
Tires ....................................................................................P.424
Tire size/inflation pressure ................................... ................P.525
Winter tires/tire chain ........................................ ...................P.343
Checking/rotation/tire pressur e warning system ..................P.424
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4
4
Driving
Driving
4-1. Before drivingDriving the vehicle....... 208
Cargo and luggage ..... 215
Vehicle load limits ....... 218
Trailer towing (without tow- ing package).............. 219
Trailer towing (with towing package) ................... 220
Dinghy towing ............. 230
4-2. Driving procedures Power (ignition) switch 231
EV drive mode ............ 236
Hybrid transmission .... 238
Turn signal lever ......... 242
Parking brake .............. 243
Brake Hold .................. 246
4-3. Operating the lights and wipers
Headlight switch .......... 248
AHB (Automatic High Beam)........................ 250
Fog light switch ........... 254
Windshield wipers and washer....................... 254
Rear window wiper and washer....................... 257
4-4. Refueling Opening the fuel tank cap.................................. 2594-5. Using the dr
iving support
systems
Toyota Safety Sense 2.0 .................................. 262
PCS (Pre-Collision System) .................................. 267
LTA (Lane Tracing Assist) .................................. 275
RSA (Road Sign Assist) .................................. 285
Dynamic radar cruise con- trol with full-speed range
.................................. 288
BSM (Blind Spot Monitor) .................................. 299
Intuitive parking assist . 308
RCD (Rear Camera Detec- tion) function .............. 315
PKSB (Parking Support Brake) ........................ 319
Parking Support Brake func- tion (static objects) .... 323
Parking Support Brake func- tion (rear-crossing vehi-
cles) ........................... 329
Driving mode select switch .................................. 333
Driving assist systems. 335
4-6. Driving tips Hybrid vehicle driving tips.................................. 341
Winter driving tips........ 343

2494-3. Operating the lights and wipers
4
Driving
■Headlight control sensor
The sensor may not function prop-
erly if an object is placed on the sen-
sor, or anything that blocks the
sensor is affixed to the windshield.
Doing so interfere s with the sensor
detecting the level of ambient light
and may cause the automatic head-
light system to malfunction.
■Automatic light off system
●When the headlights are on: The
lights turn off 30 seconds after the
power switch is turned to ACC or
OFF and a door is opened and
closed. (The lights turn off imme-
diately if on the key is
pressed after all the doors are
closed.)
●When only the tail lights are on:
The tail lights turn off automati-
cally if the power switch is turned
to ACC or OFF and the driver’s
door is opened.
Except for Canada: To turn the
lights on again, turn the power
switch to ON, or turn the light switch
off once and the n back to or
position.
For Canada: To turn the lights on
again, turn the power switch to ON,
or turn the light s witch to once
and then back to or posi-
tion.
■Light reminder buzzer
A buzzer sounds when the power
switch is turned to ACC or OFF and
the driver’s door is opened while the
lights are turned on.
■Windshield wiper linked head-
light illumination (if equipped)
When driving during daytime with
the headlight switch turned to , if
the windshield wipers are used, the
headlights will turn o n automatically
after several se conds to help
enhance the visibility of your vehi-
cle.
■12-volt battery-saving function
In order to prevent the 12-volt bat-
tery of the vehicle from discharging,
if the headlights and/or tail lights are
on when the power switch is turned
to OFF, the battery saving function
will operate and au tomatically turn
off all the lights af ter approximately
20 minutes.
When any of the following are per-
formed, the battery-saving function
is canceled once and then reacti-
vated. All the light s will turn off auto-
matically 20 minutes after the
battery-saving function has been
reactivated:
●When the headlight switch is oper-
ated
●When a door is opened or closed
■If “Headlight System Malfunc-
tion Visit Your Dealer” is dis-
played on the multi-information
display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Welcome light illumination con-
trol
The parking lights and tail lights
automatically turn on at night when
the doors are un locked using the
entry function or wireless remote
control if the light switch is in the
position.
■Customization
Settings (e.g. light sensor sensitiv-
ity) can be changed.
(Customizable features: P.548)

2514-3. Operating the lights and wipers
4
Driving
2Turn the headlight switch to
the or position.
The Automatic High Beam indicator
will come on when the system is
operating.
■High beam automatic turning
on or off conditions
●When all of the following condi-
tions are fulfille d, the high beam
will be automatica lly turned on
(after approximately 1 second):
• Vehicle speed is above approxi-
mately 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
are fulfilled, the h igh beam will be
automatically turned off:
• Vehicle speed drops below
approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Vehicles ahead have headlights or tail lights turned on.
• There are many streetlights on the
road ahead.
■Front camera detection infor-
mation
●The high beam may not be auto-
matically turned off in the following
situations:
• When oncoming vehicles sud-
denly appear from a curve
• When the vehicle is cut in front of by another vehicle
• When vehicles ahead are hidden from sight due to repeated curves,
road dividers or roadside trees
• When vehicles ahead appear from the faraway lane on a wide road
• When vehicles ahead have no lights
●The high beam ma y be turned off
if a vehicle ahead that is using fog
lights without using the headlights
is detected.
●House lights, street lights, traffic
signals, and illuminated billboards
or signs may cause the high beam
to switch to the low beams, or the
low beams to remain on.
●The following fact ors may affect
the amount of time taken to turn
the high beam on or off:
• The brightness of headlights, fog
lights, and tail lig hts 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 (gradi-
ent, curve, condition of the road
surface etc.)
• The number of passengers and
amount of luggage
●The high beam ma y be turned on
or off when the d river does not
expect it.
●Bicycles or similar objects may not
be detected.
●In the situations shown below, the
system may not be able to accu-
rately detect surrounding bright-
ness 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

2524-3. Operating the lights and wipers
fog, mist, ice, dirt, etc.
• The windshield is cracked or dam- aged
• The front camera is deformed or
dirty
• When the temperature of the front
camera is extremely high
• Surrounding brightness levels are equal to those of h eadlights, 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. fr om a preceding
vehicle
• When driving thr ough 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 wind-
ing road
• There is a highly reflective object
ahead of the vehicle, such as a
sign or mirror
• The back of a vehicle ahead is
highly reflective, such as a con-
tainer on a truck
• The vehicle’s headlights are dam-
aged or dirty, or are not aimed
properly
• The vehicle is listing or titling 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 distress to other drivers or
pedestrians nearby
■Temporarily lowering sensor
sensitivity
The sensitivity of the sensor can be
temporarily lowered. 1
Turn the power s witch off while
the following conditions are met.
●The headlight switch is in or
position.
●The headlight switch lever is in the
original position.
●Automatic High Beam switch is
on.
2 Turn the power switch to ON.
3 Within 60 seconds after step 2,
repeat pushing the headlight
switch lever to the high beam
position then pulling it to the orig-
inal position quickly 10 times,
then leave the lever in the origi-
nal position.
4 If the sensitivity is changed, the
Automatic High Beam indicator
turns on and off 3 times.
■Switching to the high
beams
Push the lever away from you.
The Automatic High Beam indicator
will turn off and the headlight high
beam indicator will turn on.
Pull the lever to its original position
to activate the Automatic High
Beam system again.
■Switching to the low beams
Press the Automatic High Beam
Turning the high beam
on/off manually