Page 191 of 572

08 SIENNA_U (L/O 0801)
183
2008 SIENNA from Aug. ’08 Prod. (OM45455U)
To turn on the windshield wipers, move
the lever to the desired setting.
The engine switch must be in the “ON”
position.Lever position
Speed setting
Position 1Intermittent
Position 2Slow
Position 3Fast
For a single sweep of the windshield,
push the lever up and release it. With interval adjuster: The band lets you
adjust the wiping time interval when the
wiper lever is in the intermittent position
(position 1). Twist  the band upward to
increase the time between sweeps, and
downward to decrease it.
To squirt washer fluid, pull the lever
toward you.
If the windshield wipers are off, they will
operate a couple of times after the washer
squirts.
For instructions on adding washer fluid,
see “Adding washer fluid” on page 539 in
Section 7
−3.
In freezing weather, warm the windshield
with the defroster before using the washer.
This will help prevent the washer fluid
from freezing on your windshield, which
can block your vision.
NOTICE
Do not operate the wipers if the wind-
shield is dry. It may scratch the
glass.
When waxing your vehicle, make sure that
the washer nozzles do not become
blocked. If a nozzle becomes blocked,
contact your Toyota dealer to have the
vehicle serviced.
NOTICE
If a nozzle becomes blocked, do not
try to clear it with a pin or other
object. The nozzle will be damaged.
Windshield wipers and washer 
     
        
        Page 464 of 572

08 SIENNA_U (L/O 0801)
456
2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Do not use tires with different tread
wear. To equalize the tire wear, ro-
tate tires at  the appropriate interval.
(See “Rotating tires” on page 528
in Section 7 2.)
Use the manufacturer ’s recom-
mended wheels. Do not use wheels
of different sizes and types. (See
“Replacing wheels” on page 532 in
Section 7 2.)
NOTICE
Do not attempt to go off road in your
Toyota. It is not designed for off road
use.
Make sure your coolant is properly pro-
tected against freezing.
Only use “Toyota Super Long Life Coolant”
or similar high quality ethylene glycol
based non−silicate, non −amine, non −nitrite,
and non− borate coolant with long −life
hybrid organic acid technology. (Coolant
with long −life hybrid organic acid
technology is a combination of low
phosphates and organic acids.)
See “Checking the engine coolant level”
on page 520 in Section 7 −2 for details of
coolant type selection.
For the U.S.A.—“Toyota Super Long Life
Coolant” is a mixture of 50% coolant and
50% deionized water. This  coolant pro-
vides protection down to about  −35 C
( − 31 F).
For Canada—“Toyota Super Long Life
Coolant” is a mixture of 55% coolant and
45% deionized water. This  coolant pro-
vides protection down to about  −42 C
( − 44 F).
NOTICE
Do not use plain water alone.
Check the condition of  the battery and
cables.
Cold temperatures reduce the capacity of
any battery, so it must be in top shape
to provide enough power for  winter  start-
ing. Section 7− 3 tells  you how to visually
inspect the battery. Your Toyota dealer
and most service stations will be pleased
to check the level of charge.
Make sure the engine oil viscosity is
suitable for the cold weather.
See page 518 in Section 7 −2 for recom-
mended viscosity. Leaving a heavy sum-
mer oil in your vehicle during winter
months may cause harder starting. If you
are not  sure about which oil to use,  call
your Toyota dealer—they will be pleased
to help.
Keep the door locks from freezing.
Squirt lock de −icer or glycerine into the
locks to keep them from freezing.
Use a washer fluid containing an anti-
freeze solution.
This product is available at your Toyota
dealer and most auto parts stores. Follow
the manufacturer ’s directions for how
much to mix with water.
Winter driving tips 
     
        
        Page 512 of 572

08 SIENNA_U (L/O 0801)
504
2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Your Toyota vehicle has been designed for
fewer maintenance requirements with long-
er service intervals to save both your time
and money.  However, each regular mainte-
nance, as well as day−to −day care, is
more important than ever before to ensure
smooth, trouble− free, safe, and economical
driving.
It is the owner ’s responsibility to make
sure the specified maintenance, including
general maintenance service, is performed.
Note that both the new vehicle and emis-
sion control system warranties specify that
proper maintenance and care must be per-
formed. See “Owner ’s Warranty Informa-
tion Booklet” or “Owner ’s Manual Supple-
ment” for complete warranty information.
General maintenance
General maintenance items are those day −
to −day care practices that are important to
your vehicle for proper operation. It is the
owner ’s responsib ility to insure that the
general maintenance items are performed
regularly.
These checks or inspections can be done
either by yourself or a qualified technician,
or if you prefer, your Toyota dealer will be
pleased to do them at a nominal cost. Scheduled maintenance
The scheduled maintenance items listed in
the “Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement” are those
required to be serviced at  regular inter-
vals.
For details of your maintenance schedule,
read the “Scheduled Maintenance Guide”
or “Owner ’s Manual Supplement”.
It is recommended that any replacement
parts used for maintenance or  for the
repair of  the emission control system
be Toyota supplied.
The owner may elect to use non Toyota
supplied parts for  replacement pur-
poses without invalidating the emission
control system warranty. However, use
of replacement parts which are not of
equivalent quality may impair  the effec-
tiveness of  the emission control sys-
tems.
You may also elect to have mainte-
nance, replacement, or repair of the
emission control devices and system
performed by any automotive repair es-
tablishment or individual without invali-
dating this warranty. See “Owner’s War-
ranty Information Booklet” or “Owner’s
Manual Supplement” for complete war-
ranty information.Where to go for service?
Toyota technicians are well
−trained spe-
cialists and are kept up to date with the
latest service information through technical
bulletins, service tips, and in −dealership
training programs. They learn to work on
Toyotas before they work on your vehicle,
rather than while they are working on it.
You can be confident that your Toyota
dealer ’s service department performs the
best job to meet the maintenance require-
ments on your vehicle—reliably and eco-
nomically.
Your copy of the repair order is proof that
all required maintenance has  been per-
formed for warranty coverage. If any prob-
lems should arise with your vehicle while
under warranty, your Toyota dealer will
promptly take care of it. Again, be sure
to keep a copy of the repair order for any
service performed on your Toyota.
What about do it yourself maintenance?
Many of the maintenance items are easy
to do yourself if you have a little mechani-
cal ability and a few basic automotive
tools. Simple instructions for how to per-
form them are presented on page 509 in
Section 7.
Maintenance requirements