check engine light TOYOTA SIENNA 2018 Owners Manual (in English)

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SIENNA_OM_OM08019U_(U)
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6-3. Do-it-yourself maintenanceDo-it-yourself service precautions ..................... 405
Hood.................................. 407
Positioning a floor jack ...... 409
Engine compartment ......... 410
Tires .................................. 420
Tire inflation pressure........ 429
Wheels .............................. 432
Air conditioning filter .......... 434
Wireless remote control/ electronic key battery ...... 436
Checking and replacing fuses ............................... 439
Light bulbs ......................... 442
7-1. Essential information Emergency flashers .......... 462
If your vehicle has to be stopped in an
emergency ...................... 463
7-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 465
If you think something is wrong .............................. 469
Fuel pump shut off system............................. 470
If a warning light turns on or a warning buzzer
sounds ............................ 471
If a warning message is displayed ......................... 481
If you have a flat tire (vehicles with a compact
spare tire) ........................ 485 If you have a flat tire
(vehicles with
run-flat tires) .................... 499
If the engine will not start ................................. 501
If the electronic key does not operate properly
(vehicles with a smart
key system) ..................... 503
If the battery is discharged ....................... 505
If your vehicle overheats......................... 509
If the vehicle becomes stuck ................................ 512
8-1. Specifications Maintenance data (fuel, oil level, etc.) .......... 516
Fuel information ................. 526
Tire information.................. 529
8-2. Customization Customizable features ....... 540
8-3. Initialization Items to initialize ................ 550
7When trouble arises
8Vehicle specifications

761-1. For safe use
SIENNA_OM_OM08019U_(U)
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to
an accident caused by light-headedness, or may lead to death or a serious
health hazard.
■ Important points while driving
● Keep the back door closed.
● If you smell exhaust gases in the vehicle even when the back do or is
closed, open the windows and have the vehicle inspected at your Toyota
dealer as soon as possible.
■ When parking
● If the vehicle is in a poorly ventilated area or a closed area, such as a
garage, stop the engine.
● Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an o pen space
and ensure that exhaust fumes do not enter the vehicle interior .
● Do not leave the engine running in an area with snow build-up, or where it
is snowing. If snowbanks build up around the vehicle while the engine is
running, exhaust gases may collect and enter the vehicle.
■ Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise, be
sure to have the vehicle inspected and repaired by your Toyota dealer.

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2. Instrument cluster
*1: These lights turn on when the engine switch is turned to the “ON” position
(vehicles without a smart key system) or IGNITION ON mode (vehicles
with a smart key system) to indicate that a system check is being per-
formed. They will turn off after the engine is started, or after a few seconds.
There may be a malfunction in a system if a light does not come on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota dealer.
*2: The light comes on or flashes to indicate a malfunction.
*3: This light illuminates on the multi-information display.
*4: If equipped
The indicators inform the driver of the operating state of the vehicle’s
various systems.
*3Brake Override System
warning light ( P. 474)*3High coolant
temperature warning
light (P. 474)
Indicators
Turn signal indicator
(P. 239)*2Cruise control indicator
(P. 289)
(U.S.A.)
Headlight indicator
(P. 241)*2Dynamic radar cruise
control indicator
(P. 289)
(Canada)
Tail light indicator
(P. 241)*2Cruise control “SET”
indicator ( P. 289)
Headlight high beam
indicator ( P. 242)
*2
(White)
LDA indicator ( P. 279)
Automatic High Beam
indicator ( P. 246)
*2
(Green)
LDA indicator ( P. 279)
*1Fog light indicator
(P. 251)*2, 4
(Amber)
LDA indicator ( P. 279)

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872. Instrument cluster
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Instrument cluster
*1: If equipped
*2: This light illuminates on the multi-information display.
*3: These lights turn on when the engine switch is turned to the “ON” position
(vehicles without a smart key system) or IGNITION ON mode (vehicles
with a smart key system) to indicate that a system check is being per-
formed. They will turn off after the engine is started, or after a few seconds.
There may be a malfunction in a system if a light does not come on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota dealer.
*4: The light flashes to indicate that the system is operating.
*5: The light comes on when the system is turned off.
*3, 4
Slip indicator (P. 323)*3, 8Eco Driving Indicator
Light (P. 88)
*3, 5VSC OFF indicator
(P. 323)*2Low outside
temperature indicator
(P. 91)
*3, 5PCS warning light
(P. 267)*3, 9
(U.S.A.)
“AIR BAG ON/OFF”
indicator ( P. 52)
*1, 6, 7BSM (Blind Spot
Monitor) outside rear
view mirror indicators
(P. 302)
*1, 2“BSM” (Blind Spot
Monitor) indicator
(P. 302)*3, 9
(Canada)
“AIR BAG ON/OFF”
indicator ( P. 52)
*1, 2“RCTA” (Rear Cross
Traffic Alert) indicator
(P. 302)
Security indicator
( P. 77, 79)
*2“ECT PWR” indicator
(P. 234)

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912. Instrument cluster
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Instrument cluster
The brightness of the meter panel lights can be adjusted.
Pressing the butto n will adjust the
brightness of the meter panel
lights.
The brightness level of the meters
when the surroundings are bright
(day mode) and dark (night mode)
can be adjusted individually. How-
ever, when in day mode, adjusting
the brightness level will also
change the brightness level of
night mode.
■ Outside temperature display
●In the following situations, the correct outside temperature ma y not be dis-
played, or the display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 12 mph [20 k m/h])
• When the outside temperature has changed suddenly (at the entr ance/
exit of a garage, tunnel, etc.)
● The temperature range that can be displayed is from -40°F (-40° C) to 122°F
(50°C).
When the outside temperature drops below 37°F (3°C), the Low ou tside
temperature indicator will be displayed on the multi-informatio n display.
( P. 86)
● When “--” or “E” is displayed, the system may be malfunctioning. Take your
vehicle to your Toyota dealer.
Meter panel light control
NOTICE
■To prevent damage to the engine and its components
● Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. ( P. 509)

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1994-1. Before driving
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Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scrap ing noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■ When the vehicle is stopped
● Do not race the engine.
If the vehicle is in any gear other than P or N, the vehicle may accelerate
suddenly and unexpectedly, causing an accident.
● In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while the engine is running, and app ly the
parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent ac cidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped m ay cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.
■ When the vehicle is parked
● Do not leave glasses, cigarette lighters, spray cans, or soft d rink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may le ad to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and plastic material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray ov er the
interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.

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4-1. Before driving
■Matching trailer ball height to trailer coupler height
■ Before towing
Check that the following conditions are met:
●Ensure that your vehicle’s tires are properly inflated. ( P. 522)
● Trailer tires are inflated according to the trailer manufacture r’s recommen-
dation.
● All trailer lights work as required by law.
● All lights work each time you connect them.
● The trailer ball is set at the proper height for the coupler on the trailer.
● The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for imprope r tongue weight,
overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors ap propriate for tow-
ing purposes.
■ Break-in schedule
If your vehicle is new or equipped with any new power train com ponents
(such as an engine, transmission, differential or wheel bearing ), Toyota rec-
ommends that you do not tow a trailer until the vehicle has bee n driven for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start
towing. However, for the next 500 miles (800 km), drive the veh icle at a speed
of less than 50 mph (80 km/h) when towing a trailer, and avoid full throttle
acceleration. No matter which class of tow hitch
applies, for a safe trailer hookup, the
trailer ball setup on must be proper height
for the coupler on the trailer.
Coupler
Trailer ball
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4-2. Driving procedures
WARNING
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the engine under any circumsta nces.
Doing so may cause an accident resulting in death or serious in jury.
■ Caution while driving
If the vehicle begins to slide due to engine failure or other c ircumstances, do
not lock or open the doors until the vehicle reaches a safe and complete
stop. Activation of the steering lock in this circumstance may lead to an
accident, resulting in death or serious injury.
■ Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving th e vehicle,
press and hold the engine switch for more than 2 seconds, or pr ess it briefly
3 times or more in succession. ( P. 463)
However, do not touch the engine switch while driving except in an emer-
gency. Turning the engine off while driving will not cause loss of steering or
braking control, but the power assist to these systems will be lost. This will
make it more difficult to steer and brake, so you should pull o ver and stop
the vehicle as soon as it is safe to do so.
NOTICE
■ To prevent battery discharge
● Do not leave the engine switch in ACCESSORY or IGNITION ON mode
for long periods of time without the engine running.
● If the indicator on the engine switch is illuminated, the engin e switch is not
off. When exiting the vehicle, always check that the engine swi tch is off.
● Do not stop the engine when the shift lever is in a position ot her than P. If
the engine is stopped in another shift lever position, the engi ne switch will
not be turned off but instead be turned to ACCESSORY mode. If t he vehi-
cle is left in ACCESSORY mode, battery discharge may occur.
■ When starting the engine
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have the engine
checked immediately.
■ Symptoms indicating a malf unction with the engine switch
If the engine switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunctio n.
Contact your Toyota dealer immediately.

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4-2. Driving procedures
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Driving
Turn signal lever
Right turn
Left turn
Lane change to the right (move
the lever partway and release
it)
The right hand signals will flash 3
times.
Lane change to the left (move
the lever partway and release
it)
The left hand signals will flash 3
times.
■Turn signals can be operated when
The engine switch is in the “ON” position (vehicles without a s mart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system).
■ If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned
out.
■ If the turn signals stop flashing before a lane change has been per-
formed
Operate the lever again.
■ To discontinue flashing of the turn signals during a lane chang e
Operate the lever in the opposite direction.
Operating instructions
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4-3. Operating the lights and wipers
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 s mart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system).
■ Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to “AUTO” position while the engi ne switch is in
IGNITION ON mode, the wiper will operate once to show that “AUT O” 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 ca se, 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 washe r fluid in the
windshield washer fluid reservoir.
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● The raindrop sensor judges the amount
of raindrops.