open hood TOYOTA SIENNA 2018 Owners Manual (in English)

16Pictorial index
SIENNA_OM_OM08019U_(U)Front doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 110
Locking/unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 110
Opening/closing the door glasses . . . . . . . . . . . . . . . . . . . . . . P. 184
Locking/unlocking by using the mechanical key
*1. . . . . . . . . . P. 503
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 481
Sliding doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 121
Locking/unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 121
Opening from outside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 122
Opening/closing the rear side windows . . . . . . . . . . . . . . . . . . P. 184
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 481
Back door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 133
Opening from outside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 134
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 481
Outside rear view mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 181
Adjusting the mirror angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 181
Folding the mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 181
Driving position memory
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 169
Defogging the mirrors
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 336
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 327
To prevent freezing (windshield wiper de-icer)
*1. . . . . . . . . . . P. 336
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 394
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 518
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 522
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 327
Checking/rotation/tire pressur e warning system . . . . . . . . .P. 420
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . P. 485, 499
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 407
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 407
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 518
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 509
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 481
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19Pictorial index
SIENNA_OM_OM08019U_(U)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 92
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 92
When the warning messages are displayed . . . . . . . . . . . . . . P. 481
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 240
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 240
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 328
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 481
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Headlights/parking lights/tail lights/
daytime running lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 2
41
Fog lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 251
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . P. 252
Rear window wiper and washer switch . . . . . . . . . . . . . . . . P. 256
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252, 256
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 419
Warning lights/warning messages . . . . . . . . . . . . . . . . . . P. 474, 481
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 462
Fuel filler door opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 407
Tilt and telescopic steering lock release lever . . . . . . . . . . P. 177
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 332
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 332
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 336
Multimedia system
*1, 2
Blu-ray disc/DVD player*1, 2
*1: If equipped
*2: For vehicles with an Entune Audio, Entune Audio Plus or Entune Premium Audio, refer to “NAVIGATI ON AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
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571-1. For safe use
SIENNA_OM_OM08019U_(U)
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For safety and security
Safety information for children
●It is recommended that children sit in the rear seats to avoid acci-
dental contact wit h the shift lever, wiper switch etc.
● Use the sliding door child-protector lock or the window lock sw itch
to avoid children opening the door while driving or operating t he
power window accidentally. ( P. 125, 184)
● Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, back door,
seats etc.
Observe the following precautions when children are in the vehi -
cle.
Use a child restraint system app ropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by p laying with
the windows, the moon roof (if equipped) or other features of t he vehicle. In
addition, heat build-up or extremely cold temperatures inside t he vehicle
can be fatal to children.

791-2. Theft deterrent system
SIENNA_OM_OM08019U_(U)
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For safety and security
Alar m
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the ala rm is
set:
● A locked door is unlocked or opened in any way other than using
the entry function (vehicles with a smart key system) or wireless
remote control. (The doors wi ll lock again automatically.)
● The hood is opened.
Close the doors and hood, and
lock all the doors using the entry
function (vehicles with a smart key
system) or wireless remote con-
trol. The system will be set auto-
matically after 30 seconds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
Do one of the following to d eactivate or stop the alarm:
● Unlock the doors using the entry function (vehicles with a smart key
system) or wireless remote control.
● Vehicles without a smart key sys tem: Turn the engine switch to the
“ACC” or “ON” position, or start the engine.
Vehicles with a smart key system: Turn the engine switch to
ACCESSORY or IGNITION ON m ode, or start the engine.
(The alarm will be deactivated or stopped after a few seconds.)
: If equipped
The alarm
Setting the alarm system
Deactivating or stopping the alarm

801-2. Theft deterrent system
SIENNA_OM_OM08019U_(U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■ Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft , make sure of
the following:
● Nobody is in the vehicle.
● The windows and moon roof (if equipped) are closed before the a larm is set.
● No valuables or other personal items are left in the vehicle.
■ Triggering of the alarm
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
●The doors are unlocked using the key.
● A person inside the vehicle opens a door
or hood.
● The battery is recharged or replaced
when the vehicle is locked. ( P. 505)

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SIENNA_OM_OM08019U_(U)
4-5. Using the driving support systems
■If the PCS warning light flashes or illuminates and a warning m essage is
displayed on the multi-information display
The pre-collision system may be temporarily unavailable or ther e may be a
malfunction in the system.
● In the following situations, the warning light will turn off, t he message will
disappear and the system will become operational when normal op erating
conditions return:
• When the radar sensor or camera sensor or the area around eith er sen-
sor is hot, such as in the sun
• When the radar sensor or camera sensor or the area around eith er sen-
sor is cold, such as in an extremely cold environment
• When a front sensor is dirty or covered with snow, etc.
• When the part of the windshield in front of the camera sensor is fogged up
or covered with condensation or ice (Defogging the windshield: P. 3 3 6 )
• If the camera sensor is obstructed, such as when the hood is open or a
sticker is attached to the windshield near the camera sensor
● If the PCS warning light continues to flash or remains illuminated or the
warning message does not disappear even though the vehicle has returned
to normal, the system may be malfunctioning. Have the vehicle inspected by
your Toyota dealer immediately.
■ If VSC is disabled
●If VSC is disabled ( P. 323), the pre-collision brake assist and pre-collision
braking functions are also disabled.
● The PCS warning light will turn on and “VSC Turned Off Pre-Coll ision Brake
System Unavailable” will be displayed on the multi-information display.

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6-3. Do-it-yourself maintenance
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Maintenance and care
Hood
Pull the hood lock release lever.
The hood will pop up slightly.
Pull up the auxiliary catch lever
and lift the hood.
Hold the hood open by inserting
the supporting rod into the slot.
Release the lock from the inside of the vehicle to open the hood.
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SIENNA_OM_OM08019U_(U)
6-3. Do-it-yourself maintenance
WARNING
■Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehic le is in motion
and cause an accident, which may result in death or serious inj ury.
■ After installing the sup port rod into the slot
Make sure the rod supports the hood securely from falling down on to your
head or body.
NOTICE
■ When closing the hood
Be sure to return the support rod to its clip before closing th e hood. Closing
the hood with the support rod up could cause the hood to bend.

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7-2. Steps to take in an emergency
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When trouble arises
If the batter y is discharged
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by foll owing the
steps below.
Vehicles with an alarm system:
Confirm that the electronic key
is being carried.
When connecting the jumper
(or booster) cables, depending
on the situation, the alarm may
activate and doors locked.
( P. 81)
Open the hood. ( P. 407)
Remove the engine cover.
The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can call your Toyota deal er or qualified repair shop.
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5117-2. Steps to take in an emergency
SIENNA_OM_OM08019U_(U)
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When trouble arises
WARNING
■When inspecting under th e hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the ho od until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf or a muffler ) away from
the fan and belts. Failure to do so may cause the hands or clothing to be
caught.
● Do not loosen the radiator cap or the coolant reservoir cap whi le the
engine and radiator are hot. High temperature steam or coolant could
spray out.
NOTICE
■ When adding engine coolant
Add coolant slowly after the engine has cooled down sufficientl y. Adding
cool coolant to a hot engine too quickly can cause damage to th e engine.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sa nd or dust
etc.).
● Do not use any coolant additive.