2017 TOYOTA SIENNA windshield wipers

SIENNA_OM_OM08007U_(U)
2554-3. Operating the lights and wipers
4
Driving
The sensor sensitivity can be adjusted when “AUTO” is selected.Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual operation
The wipers will automatically
operate a couple of times after
the washer squirts.
■The windshield wipers and washer can be operated when
The engine switch is in the “ON” position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system).
■ Raindrop sensor (vehicles with ra in-sensing windshield wipers)
● If the wiper switch is turned to “AUTO” position while the engine switch is in
IGNITION ON mode, the wiper 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 14°F
(-10°C) or lower, automatic operation may not occur. In this case, operate
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 washer fluid in the
windshield washer fluid reservoir.
6
7
8
●The raindrop sensor judges the amount
of raindrops.

256
SIENNA_OM_OM08007U_(U)
4-3. Operating the lights and wipers
WARNING
■Caution regarding the use of windshield wipers in “AUTO” mode
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
fingers 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.

257
SIENNA_OM_OM08007U_(U)
4-3. Operating the lights and wipers
4
Driving
Rear window wiper and washer
Turning the end of the lever turns on the rear window wiper and
washer.
The illustration is intended as an example.
*1 or *2
Intermittent window
wiper operation
*1 or *2
Normal window wiper
operation
Washer/wiper dual oper-
ation
Washer/wiper dual oper-
ation
*1 or *2
Off
*1:For U.S.A.
*2: For Canada
■ The rear window wiper and w asher can be operated when
The engine switch is in the “ON” position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system).
■ 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.
Operating the wiper lever
1
2
3
4
5

SIENNA_OM_OM08007U_(U)
2734-5. Using the driving support systems
4
Driving
■Dynamic radar cruise control can be set when
●The shift lever is in the D or the range 4 or higher of S has been selected.
● Vehicle speed is above approximately 30 mph (50 km/h).
■ Accelerating after setting the vehicle speed
The vehicle can accelerate normally. After acceleration, the set speed
resumes. However, during vehicle-to-vehicle distance control mode, the vehi-
cle speed may decrease below the set speed in order to maintain the dis-
tance to the vehicle ahead.
■ Automatic cancelation of vehic le-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the fol-
lowing situations:
● Actual vehicle speed falls below approximately 25 mph (40 km/h).
● VSC is activated.
● The sensor cannot operate correctly because it is covered in some way.
● The windshield wipers are operating at high speed (when the wiper switch is
set to the “AUTO” mode or the high speed wiper operation position).
If vehicle-to-vehicle distance control driving is automatically canceled for any
other reason, there may be a malfunction in the system. Contact your Toyota
dealer.
■ Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situ-
ations.
● Actual vehicle speed is more than approximately 10 mph (16 km/h) below
the set vehicle speed.
At this time, the memorized set speed is not retained.
● Vehicle speed falls below approximately 25 mph (40 km/h).
● VSC is activated.
■ Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-
vehicle distance control operates properly. (Some obstructions, such as
snow, ice and plastic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Grille cover
Radar sensor
1
2

SIENNA_OM_OM08007U_(U)
4797-2. Maintenance
7
Maintenance and care
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system workproperly?
Fluid leaks
• There should not be any signs of fluidleakage after the vehicle has been
parked.
Tires
• Is the tire inflatio n pressure correct?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated according to the maintenance schedule?
• The wheel nuts should not be loose.
Windshield wipers/
rear window wiper
• The wiper blades should not show any
signs of cracking, splitting, wear, contam-
ination or deformation.
• The wiper blades should clear the wind- shield/rear window without streaking or
skipping.
WARNING
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before per-
forming maintenance checks.

5598-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
Indicates that the engine coolant temperature is
too highA buzzer also sounds.
 P. 594
Indicates a malfunction in the vehicle’s charging
system.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer. Continuing
to drive the vehicle may be dangerous.
(If equipped)
Indicates that the radar sensor is dirty or covered
with ice A buzzer also sounds.
 Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control
system is unable to judge vehicle-to-vehicle dis-
tance
A buzzer also sounds.
 If the windshield wipers are on, turn them
off or set them to a mode other than AUTO
or high speed wiper operation.
Warning messageDetails/Actions

665Alphabetical index
SIENNA_OM_OM08007U_(U)
Reporting safety defects for U.S. owners............................ 636
Roof luggage carrier ............... 205
Resetting the message indicating maintenance is
required .................................. 475
Safety connect ......................... 461
Seat belts Adjusting the seat belt ............ 31
Automatic Locking
Retractor............................... 32
Child restra int system
installation ............................ 66
Cleaning and maintaining the seat belts ...................... 472
Emergency Locking Retractor............................... 32
How to wear your seat belt...... 28
How your child should wear the seat belt .......................... 32
Pre-collision seat belt.............. 31
Pregnant women,
proper seat belt use.............. 33
Reminder light....................... 547
Seat belt extenders ................. 32
Seat belt instructions for Canadian owners ............... 637
Seat belt pretensioners ........... 31
SRS warning light ................. 546
Seat heaters ............................. 424
Seat position memory ............. 169
Seating capacity ...................... 209 Seats
Adjustment.................... 149, 152
Adjustment
precaution .................. 151, 166
Child seats/child restraint
system installation ................ 56
Cleaning ............................... 471
Driver’s seat position memory .............................. 169
Head restraint ....................... 173
Properly sitting in the seat ...... 26
Seat heaters ......................... 424
Sensor Inside rear view mirror .......... 180
Intuitive parking assist .......... 279
Radar sensor ................ 273, 303
Rain-sensing windshield
wipers ................................. 255
Service reminder indicators ..... 82
Shift lever Automatic transaxle .............. 233
If the shift lever cannot be shifted from P ................ 238
Shift lock system ..................... 237
Side airbags ............................... 36
Side marker lights Light switch ........................... 242
Replacing.............. 525, 527, 531
Wattage ................................ 608
Side mirrors
Adjusting and folding ............ 181
BSM (Blind Spot Monitor) ..... 309
Heaters ................................. 416
Mirror position memory ......... 169
Sliding doors Sliding doors ......................... 121
Wireless remote control ........ 124
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669Alphabetical index
SIENNA_OM_OM08007U_(U)
WindowsPower windows ..................... 184
Quarter windows ................... 187
Rear window defogger .......... 416
Washer ......................... 253, 257
Windshield wiper de-icer ........ 416
Windshield wipers Intermittent windshield
wipers ................................. 253
Rain-sensing windshield wipers ................................. 254
Winter driving tips ................... 317
Wireless remote control key Battery-saving function ......... 145
Locking/Unlocking................. 105
Panic mode ........................... 106
Replacing the battery ............ 511
Wireless remote control ........ 105
WMA disc
*............................... 342
*: Refer to “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”