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TABLE OF CONTENTSIndex
6
SIENNA_OM_OM45472U_(U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ........... 646
Cleaning and protecting the vehicle interior ............ 651
4-2. Maintenance Maintenance requirements .................... 655
General maintenance ......... 658
Emission inspection and maintenance (I/M)
programs .......................... 662
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 663
Hood................................... 667
Positioning a floor jack ....... 669
Engine compartment .......... 671
Tires ................................... 688
Tire inflation pressure......... 699
Wheels ............................... 703
Air conditioning filter ........... 706
Wireless remote control/ electronic key battery ....... 709
Checking and replacing fuses ................................ 712
Light bulbs .......................... 725 5-1. Essential information
Emergency flashers ............ 738
If your vehicle needs to be towed ....................... 739
If you think something is wrong ............................ 743
Fuel pump shut off system .............................. 744
5-2. Steps to take in an emergency If a warning light turns on or a warning
buzzer sounds... ............... 745
If a warning message is displayed ....................... 760
If you have a flat tire (vehicles with
run-flat tires) ..................... 761
If you have a flat tire (vehicles with
standard tires) .................. 763
If the engine will not start .... 778
If the shift lever cannot be shifted from P ................... 780
If you lose your keys ........... 782
If the electronic key does not operate properly ......... 783
If the battery is discharged ........................ 786
If your vehicle overheats..... 791
If the vehicle becomes stuck ................................. 794
If your vehicle has to be stopped in
an emergency ................... 796
4Maintenance and care5When trouble arises
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241
2-1. Driving procedures
2
When driving
SIENNA_OM_OM45472U_(U)
Tur n signal lever
■Turn signals can be operated when
Vehicles without a smart key system:
The engine switch is in the “ON” position.
Vehicles with a smart key system:
The “ENGINE START STOP” switch is in IGNITION ON mode.
■ If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned
out.
The turn signal lever can be used to show the following intentions of
the driver:
Right turn
Left turn
Lane change to the right
(push and hold the lever
partway)
The right hand signal will flash
until you release the lever.
Lane change to the left
(push and hold the lever
partway)
The left hand signal will flash
until you release the lever.
Page 645 of 876
Maintenance and care4
645
SIENNA_OM_OM45472U_(U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 646
Cleaning and protecting the vehicle interior .......... 651
4-2. Maintenance Maintenance requirements .................. 655
General maintenance....... 658
Emission inspection and maintenance
(I/M) programs ............... 662
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 663
Hood ................................ 667
Positioning a floor jack ..... 669
Engine compartment ........ 671
Tires ................................. 688
Tire inflation pressure ...... 699
Wheels ............................. 703
Air conditioning filter......... 706
Wireless remote control/ electronic key battery ..... 709
Checking and replacing fuses .............................. 712
Light bulbs........................ 725
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664 4-3. Do-it-yourself maintenance
SIENNA_OM_OM45472U_(U)
ItemsParts and tools
Engine oil levelP. 673)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 712)• Fuse with same amperage rating
as original
Light bulbs (P. 725)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and condenser (P. 680)
Tire inflation pressure ( P. 699)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 687)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
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724 4-3. Do-it-yourself maintenance
SIENNA_OM_OM45472U_(U)
■After a fuse is replaced
● If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. (P. 725)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in the circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.
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725
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_OM_OM45472U_(U)
Light bulbs
You may replace the following bulbs by yourself. The difficulty level
of replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perfor m, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( P. 812)
■ Turning off the power back door main switch
P. 8 4
■ Front bulb locations
Fog light Headlight high beam
and daytime running
lights Headlight
low beam
Front turn signal/parking
and front side marker
lights
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726 4-3. Do-it-yourself maintenance
SIENNA_OM_OM45472U_(U)
Replacing light bulbs■ Headlight low beams (halogen bulb)
For left side only:
Open the fuse box cover. ( P. 712)
Unplug the connector while
pushing the lock release.
■ Rear bulb locations
Back-up lightRear turn
signal light
License plate
lightsTail light
STEP1
STEP2
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727
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_OM_OM45472U_(U)
Turn the bulb base counterclock-
wise.
■ Headlight high beams and daytime running lights
For left side only:
Open the fuse box cover. ( P. 712)
Turn the bulb base counterclock-
wise.
Unplug the connector while
pushing the lock release.
STEP3
STEP1
STEP2
ITO43P165
STEP3