TABLE OF CONTENTS6
SIENNA_OM_01999-08001_(U)6-4. Using the other interior
features
Other interior features ....... 435 • Sun visors ..................... 435
• Vanity mirrors................ 435
• Clock ............................. 436
• Conversation mirror ...... 436
• Power outlets ................ 437
• Armrests ....................... 440
• Assist grips ................... 441
• Rear side sunshades .... 442
• Grocery bag hooks ....... 443
Garage door opener .......... 444
Compass ........................... 449
Safety Connect.................. 453
7-1. Maintenance and care Cleaning and protecting the vehicle exterior .......... 460
Cleaning and protecting the vehicle interior ........... 463
7-2. Maintenance Maintenance requirements ................... 466
General maintenance ........ 469
Emission inspection and maintenance (I/M)
programs ......................... 472 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ...................... 473
Hood .................................. 475
Positioning a floor jack....... 477
Engine compartment ......... 478
Tires................................... 488
Tire inflation pressure ........ 496
Wheels............................... 499
Air conditioning filter .......... 501
Wireless remote control/ electronic key battery ...... 503
Checking and replacing fuses ................................ 506
Light bulbs ......................... 509
8-1. Essential information Emergency flashers ........... 528
If your vehicle has to be stopped in an
emergency....................... 529
8-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 531
If you think something is wrong............................... 535
Fuel pump shut off system ............................. 536
If a warning light turns on or a warning buzzer
sounds ............................. 537
If a warning message is displayed ......................... 546
If you have a flat tire (vehicles with
run-flat tires) .................... 562
7Maintenance and care
8When trouble arises
SIENNA_OM_01999-08001_(U)
4116-1. Using the air conditioning system and defogger
6
Interior features
■Temperature display
The temperature display on the multi-information display can be changed.
(P. 618)
■ When
is selected for the air outlets used
For your driving comfort, air flowing to the feet may be warmer than air flow-
ing to the upper body depending on the temperature setting.
■ When the outside temperature is low
The dehumidification function may not operate even when the “A/C” button is
pressed.
■ When “A/C ON” flashes in the display
Press the “A/C” button and turn off the air conditioning system before turning it
on once more. There may be a problem in the air conditioning system if “A/C
ON” continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
● During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic
mode.
■ Air conditioning filter
P. 501
■ Customization
Settings (e.g. “AUTO” button linked operation) can be changed.
(Customizable features: P. 625)
459
SIENNA_OM_01999-08001_(U)
7Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 460
Cleaning and protecting the vehicle interior ........... 463 7-2. Maintenance
Maintenance requirements ................... 466
General maintenance........ 469
Emission inspection and maintenance (I/M)
programs......................... 472
7-3. Do-it-yourself maintenance Do-it-yourself service precautions ..................... 473
Hood ................................. 475
Positioning a floor jack ...... 477
Engine compartment ......... 478
Tires .................................. 488
Tire inflation pressure ....... 496
Wheels .............................. 499
Air conditioning filter.......... 501
Wireless remote control/ electronic key battery ...... 503
Checking and replacing fuses ............................... 506
Light bulbs......................... 509
474
SIENNA_OM_01999-08001_(U)
7-3. Do-it-yourself maintenance
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions:
■When working on the engine compartment:
● Keep hands, clothing and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
■ When working near the electric cooling fans or radiator grille
Be sure the engine switch is in the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system). With the engine
switch in the “ON” position (vehicles without a smart key system) or IGNI-
TION ON mode (vehicles with a smart key system), the electric cooling fans
may automatically start to run if the air conditioning is on and/or the coolant
temperature is high. ( P. 483)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.
501
SIENNA_OM_01999-08001_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
Air conditioning filter
Turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehic les with a smart key system).
Open the glove box. Slide off
the damper.
Push in each side of the glove
box to disconnect the claws.
Remove the filter cover.
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
1
2
3
4
502
SIENNA_OM_01999-08001_(U)
7-3. Do-it-yourself maintenance
Remove the filter and replace it
with a new one.
The“ UP” marks shown on the fil-
ter should be pointing up.
■ Checking interval
Replace the air conditioning filter according to the maintenance schedule. In
dusty areas or areas with heavy traffic flow, more frequent cleaning or early
replacement may be required. (For scheduled maintenance information,
please refer to the “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace it if necessary.
5
NOTICE
■When using the ai r conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.
649Alphabetical index
SIENNA_OM_01999-08001_(U)
Alphabetical index
A/C .................................... 404, 413Air conditioning filter ............. 501
Front automatic air
conditioning system ............ 404
Rear automatic air
conditioning system ............ 413
ABS (Anti-lock Brake System) .................................. 291
Function ................................ 291
Warning light ......................... 538
Warning message ................. 549
Active head restraint ............... 149
Active Torque Control 4WD system ........................... 291
Function ................................ 291
Warning message ......... 553, 554
Air conditioning filter .............. 501
Air conditioning system
Air conditioning filter ............. 501
Front automatic air conditioning system ............ 404
Rear automatic air conditioning system ............ 413 Airbags ....................................... 36
Airbag operating
conditions ............................. 45
Airbag precautions for your child......................... 39
Airbag warning light .............. 538
Correct driving posture ........... 26
Curtain shield airbag operating conditions ............. 46
Curtain shield airbag precautions........................... 39
Front passenger occupant classification syst em ............ 50
General airbag
precautions........................... 39
Locations of airbags ............... 36
Modification and disposal of airbags ............... 44
Side and curtain shield airbags operating
conditions ............................. 46
Side and curtain shield airbags precautions .............. 39
SRS airbag instructions for Canadian owners .......... 633
SRS airbags ........................... 36
A