Page 473 of 668
473
SIENNA_OM_OM08013U_(U)
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. 488)
Brake fluidIs the brake fluid at the correct level? 
(P. 487)
Engine coolantIs the engine coolant at the correct 
level?  (P. 485)
Engine oilIs the engine oil at the correct level?
(P. 483)
Exhaust systemThere  should  not  be  any  fumes  or  strange
sounds.
Radiator/condenserThe radiator and condenser should be free
from foreign objects. (P. 487)
Washer fluidIs there sufficient washer fluid? ( P. 491) 
     
        
        Page 504 of 668

504
SIENNA_OM_OM08013U_(U)
7-3. Do-it-yourself maintenance
WARNING
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may result in a loss of handling control.
●Never  use  an  inner  tube  in  a  leaking  wheel  which  is  designed  for  a
tubeless tire. Doing so may result in an accident, causing death or seri-
ous injury.
■When installing the wheel nuts
●Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel  nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident  and  resulting  in  death  or  serious  injury.  Remove  any  oil  or
grease from the wheel bolts or wheel nuts.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing
an accident.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because  tire  repair  or  replacement  may  affect  the  tire  pressure  warn-
ing  valves  and  transmitters,  make  sure  to  have  tires  serviced  by  your
Toyota dealer or other qualified service shop. In addition, make sure to
purchase  your  tire  pressure  warning  valves  and  transmitters  at  your
Toyota dealer.
●Ensure that only genuine Toyota wheels are used on your vehicle.
Tire  pressure  warning  valves  and  transmitters  may  not  work  properly
with non-genuine wheels. 
●Be  sure  to  install  the  wheel  nuts  with
the  tapered  ends  facing  inward.
Installing  the  nuts  with  the  tapered
ends  facing  outward  can  cause  the
wheel  to  break  and  eventually  cause
the  wheel  to  come  off  while  driving,
which  could  lead  to  an  accident
resulting in death or serious injury.Tapered 
portion 
     
        
        Page 601 of 668

SIENNA_OM_OM08013U_(U)
6019-1. Specifications
9
Vehicle specifications
■Engine oil selection
“Toyota  Genuine  Motor  Oil”  is  used  in  your  Toyota  vehicle.  Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE  0W-20  is  the  best  choice
for  good  fuel  economy  and
good starting in cold weather.
If  SAE  0W-20  is  not  available,
SAE  5W-20  oil  may  be  used.
However,  it  must  be  replaced
with  SAE  0W-20  at  the  next  oil
change.
Oil viscosity (0W-20 is explained here as an example): • The  0W  in  0W-20  indicates  the  characteristic  of  the  oil  which
allows cold startability. Oils wi th a lower value before the W allow
for easier starting of the engine in cold weather.
• The  20  in  0W-20  indicates  the  viscosity  characteristic  of  the  oil when the oil is at high temperature. An oil with a higher viscosity
(one  with  a  higher  value)  may  be  better  suited  if  the  vehicle  is
operated at high speeds, or  under extreme load conditions.
How to read oil container label:
The  International  Lubricant
Specification  Advisory  Commit-
tee  (ILSAC)  Certification  Mark
is  added  to  some  oil  containers
to  help  you  select  the  oil  you
should use.
Outside temperature 
     
        
        Page 616 of 668

616
SIENNA_OM_OM08013U_(U)
9-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation 
pressure Tire  pressure  when  the  vehicle  has  been
parked  for  three  hours  or  more,  or  has  not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation 
pressure The  maximum  cold  inflat
ed  pressure  to  which
a  tire  may  be  inflated,  shown  on  the  sidewall
of the tire
Recommended 
inflation pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those stan-
dard  items  which  may  be  replaced)  of  auto-
matic  transmission,  power  steering,  power
brakes,  power  windows,  power  seats,  radio
and  heater,  to  the  extent
  that  these  items  are
available  as  factory-installed  equipment
(whether installed or not)
Curb weight The  weight  of  a  motor  vehicle  with  standard
equipment, including the maximum capacity of
fuel,  oil  and  coolant,  and  if  so  equipped,  air
conditioning  and  additional  weight  optional
engine
Maximum loaded 
vehicle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant 
weight 150 lb. (68 kg) times the number of occupants
specified  in  the  second  column  of  Table  1
*
that follows
Occupant distribution Distribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Production options 
weight The  combined  weight  of  installed  regular  pro-
duction options weighing over 5 lb. (2.3 kg) in
excess  of  the  standard  items  which  they
replace,  not  previously  considered  in  curb
weight  or  accessory  weight,  including  heavy
duty  brakes,  ride  levelers,  roof  rack,  heavy
duty battery, and special trim 
     
        
        Page 668 of 668
668
SIENNA_OM_OM08013U_(U)
GAS STATION INFORMATION
Auxiliary catch leverFuel filler door
P. 479 P. 257
Hood lock release 
leverFuel filler door openerTire inflation pressure
P. 479 P. 257P. 604
Fuel tank capacity 
(Reference)20.9 gal. (79 L, 17.4 Imp.gal.)
Fuel typeUnleaded gasoline with an Octane Rating of 87
(Research Octane Number 91) or higher
Cold tire inflation 
pressure
P.   6 0 4
Engine oil capacity
(Drain and refill — 
reference)qt. (L, Imp.qt.)
Without filter 6.0 (5.7, 5.0)
With filter 6.4 (6.1, 5.4)
Engine oil type “Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended oil viscosity: SAE 0W-20
P.   6 0 1