2015 TOYOTA SIENNA Owners Manual

SIENNA_OM_01999-08001_(U)
4657-1. Maintenance and care
7
Maintenance and care
NOTICE
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.
■ Cleaning the inside of the rear window and the rear quarter windows
● Do not use glass cleaner to clean the rear window and the rear quarter
windows, as this may cause damage to the rear window defogger heater
wires or antenna. Use a cloth dampened with lukewarm water to gently
wipe the windows clean. Wipe the windows in strokes running parallel to
the heater wires or antenna.
● Be careful not to scratch or damage the heater wires or antenna.

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7-2. Maintenance
Maintenance requirements
General maintenance should be performed on a daily basis. This can
be done by yourself or by a Toyota dealer.
Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.
For details about maintenance items and schedules, refer to the “Sched-
uled Maintenance Guide” or “Owner’s Manual Supplement”.
You can perform some maintenance procedures by yourself.
Please be aware that do-it-yourself maintenance may affect warranty
coverage.
The use of Toyota Repair Manuals is recommended.
For details about warranty coverage, see the separate “Owner’s Warranty
Information Booklet” or “Owner’s Manual Supplement”.
To ensure safe and economical driving, day-to-day care and reg-
ular maintenance are essential. It is the owner’s responsibility to
perform regular checks. Toyota recommends the following main-
tenance:
General maintenance
Scheduled maintenance
Do-it-yourself maintenance

SIENNA_OM_01999-08001_(U)
4677-2. Maintenance
7
Maintenance and care
■Repair and replacement
It is recommended that genuine Toyota parts be used for repairs to ensure
performance of each system. If non-Toyota parts are used in replacement or if
a repair shop other than a Toyota dealer performs repairs, confirm the war-
ranty coverage.
■ Resetting the message indicating maintenance is required (U.S.A. only)
After the required maintenance is preformed according to the maintenance
schedule, please reset the message.
To reset the data, follow the procedures described below:
Using the odometer and trip meter display
Turn the engine switch to the “LOCK” position (vehicles without a smart key
system) or off (vehicles with a smart key system) with the trip meter A read-
ing shown. ( P. 88)
While pressing the odometer/trip meter display change button (P. 87),
turn the engine switch to the “ON” position (vehicles without a smart key
system) or IGNITION ON mode (vehicles with a smart key system) (do not
start the engine because otherwise the reset mode will be canceled).
Continue to press and hold the button until the trip meter displays “000000”
and the multi-information display indicates that the reset is complete.
Using the multi-information display (vehicles with color display)
While the engine is running, switch the multi-information display to the
“Settings” screen. ( P. 618)
Select “Maintenance Reset” on the “Settings” screen.
Select “Yes” on the “Maintenance Reset” screen.
“Maintenance Reset Complete” will be displayed on the multi-information dis-
play when the reset procedure has been completed.
■ Allow inspection and repairs to be performed by a Toyota dealer
●Toyota technicians are well-trained specialists and are kept up to date with
the latest service information. They are well informed about the operations
of all systems on your vehicle.
● Keep a copy of the repair order. It proves that the maintenance that has
been performed is under warranty cove rage. If any problem should arise
while your vehicle is under warranty, your Toyota dealer will promptly take
care of it.
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7-2. Maintenance
WARNING
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and
possible serious injury or death.
■ Handling of the battery
● Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Work in a
well ventilated area.
● Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of Califor-
nia to cause cancer and birth defects or other reproductive harm. Avoid
exposure and wash any affected area immediately.
● Battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands
after handling. ( P. 484)

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7-2. Maintenance
7
Maintenance and care
General maintenance
Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Owner’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified service shop for advice.
Engine compartment
ItemsCheck points
BatteryCheck connections. (P. 484)
Brake fluidIs the brake fluid at the correct level?
(P. 483)
Engine coolantIs the engine coolant at the correct
level? (P. 481)
Engine oilIs the engine oil at the correct level?
(P. 479)
Exhaust systemThere should not be any fumes or strange
sounds.
Radiator/condenserThe radiator and condenser should be free
from foreign objects. (P. 483)
Washer fluidIs there sufficient washer fluid? ( P. 487)

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7-2. Maintenance
Vehicle interior
ItemsCheck points
Accelerator pedal • The accelerator pedal should move
smoothly (without uneven pedal effort or
catching).
Automatic transaxle “Park”
mechanism• When parked on a slope with the shift
lever in P, is the vehicle securely
stopped?
Brake pedal
• Does the brake pedal move smoothly?
• Does the brake pedal have appropriateclearance from the floor? ( P. 600)
• Does the brake pedal have the correct amount of free play? ( P. 600)
Brakes
• The vehicle should not pull to one side
when the brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to the floor when the brakes are applied.
Head restraints• Do the head restraints move smoothlyand lock securely?
Indicators/buzzers• Do the indicators and buzzers function
properly?
Lights• Do all the lights come on?
• Are the headlights aimed correctly?
Parking brake
• Does the parking brake lever or pedalmove smoothly?
• When parked on a slope with the parking brake on, is the vehicle securely
stopped?
Seat belts• Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotatesmoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be any strange sounds
coming from the steering wheel.

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4717-2. 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.

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7-2. Maintenance
Emission inspection and maintenance (I/M)
programs
The OBD system determines that a problem exists somewhere in the
emission control system. Your vehicl e may not pass the I/M test and
may need to be repaired. Contact your Toyota dealer to service the
vehicle.
● When the battery is disconnected or discharged
Readiness codes that are set duri ng ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary
malfunction and your vehicle may not pass the I/M test.
The error code in the OBD system will not be cleared unless the vehi-
cle is driven 40 or more times.
Contact your Toyota dealer to prepare the vehicle for re-testing.
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnos tics) checks. The OBD system
monitors the operation of the emission control system.
If the malfunction indicator lamp comes on
Your vehicle may not pass the I/M test in the following situations:
When the malfunction indicator lamp still remains on after sev-
eral driving trips
If your vehicle does not pass the I/M test