Page 473 of 672

SIENNA_OM_OM08007U_(U)
4737-1. Maintenance and care
7
Maintenance and care
NOTICE
■Cleaning detergents
●Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat  portions:  Organic  substances  such  as  benzene  or  gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco- hol
● Do  not  use  polish  wax  or  polish  cleaner.  The  instrument  panel’s  or  other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe  the  following  precautions  to  avoid  damage  to  and  deterioration  of
leather surfaces.
●Remove any dust or dirt from leather surfaces immediately.
● Do  not  expose  the  vehicle  to  direct  sunlight  for  extended  periods  of  time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery,  as  they  may  stick  to  the  leather  surface  if  the  vehicle  interior  heats
up significantly.
■ 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 wi ndow 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. 
     
        
        Page 514 of 672
514
SIENNA_OM_OM08007U_(U)
7-3. Do-it-yourself maintenance
Checking and replacing fuses
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 fuse box cover.
Remove the fuse.
Only type A fuses can be removed
using the pullout tool.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
1
2
Engine compartmentDriver’s side instrument panel
Push the tab in and lift the lid off. Remove the lid.
3 
     
        
        Page 601 of 672
SIENNA_OM_OM08007U_(U)
6019-1. Specifications
9
Vehicle specifications
■Vehicle identification number
The  vehicle  identification  number  (VIN)  is  the  legal  identifier  for
your  vehicle.  This  is  the  primary  identification  number  for  your
Toyota. It is used in registering the ownership of your vehicle.
This  number  is  stamped  on  the
top left of the instrument panel.
This number is also on the Cer-
tification  Label  on  the  driver’s
side center pillar.
■Engine number
The  engine  number  is  stamped
on the engine block as shown.
Vehicle identification 
     
        
        Page 610 of 672

610
SIENNA_OM_OM08007U_(U)
9-1. Specifications
■Recommendation of the use of low emissions gasoline
Gasolines  containing  oxygenates  such  as  ethers  and  ethanol,  as  well  as
reformulated gasolines, are available in some cities. These fuels are typically
acceptable for use, providing they meet other fuel requirements.
Toyota  recommends  these  fuels,  since  the  formulations  allow  for  reduced
vehicle emissions.
■ Non-recommendation of the use of blended gasoline
●If  you  use  gasohol  in  your  vehicle,  be  sure  that  it  has  an  octane  rating  no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Non-recommendation of the use of gasoline containing MMT
Some  gasoline  contains  an  octane  enhancing  additive  called  MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Toyota  does  not  recommend  the  use  of  gasoline  that  contains  MMT.  If  fuel
containing  MMT  is  used,  your  emission  control  system  may  be  adversely
affected.
The malfunction indicator lamp on the instrument panel may come on. If this
happens, contact your Toyota dealer for service.
■ If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern.
●
Use  only  gasoline  containing  up  to  15%
ethanol.
DO  NOT  use  any  flex-fuel  or  gasoline
that  could  contain  more  than  15%  etha-
nol,  including  from  any  pump  labeled
E30,  E50,  E85  (which  are  only  some
examples  of  fuel  containing  more  than
15% ethanol).
DO NOT use gaso-
line containing more 
than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol) 
     
        
        Page 663 of 672

663Alphabetical index
SIENNA_OM_OM08007U_(U)
MaintenanceDo-it-yourself 
maintenance ....................... 481
General maintenance ........... 477
Maintenance data ................. 600
Maintenance requirements ... 474
Malfunction indicator lamp ..... 545
Manual headlight leveling  dial .......................................... 244
Meter Indicators ................................ 82
Instrument panel light 
control ..................................... 89
Meters ..................................... 87
Multi-information 
display ............................ 90, 93
Warning lights ....................... 545
Warning messages ............... 554
Microphone .............................. 372
Mirrors Conversation mirror .............. 444
Inside rear view mirror .......... 179
Outside rear view mirror defoggers ........................... 416
Outside rear view mirrors...... 181
Vanity mirrors........................ 443
Moon roof
Jam protection function......... 190
Operation .............................. 189
MP3 disc
*................................. 342
Multi-information display .... 90, 93 Cruise control........................ 262
Drive information............... 90, 95
Dynamic radar cruise control................................. 266
Intuitive parking assist .......... 279
Settings display..................... 625
Warning messages ............... 554 Navigation system
*Noise from under vehicle ........... 8
Odometer ................................... 88
Oil
Engine oil .............................. 602
Opener
Back door ............................. 134
Fuel filler door ....................... 259
Hood ..................................... 483
Outer foot lights Outer foot lights .................... 427
Replacing light bulbs ............ 531
Outside rear view mirrors Adjusting and folding ............ 181
BSM (Blind spot monitor)...... 309
Driving position memory ....... 169
Outside rear view mirror defoggers ........................... 416
Outside temperature  display...................................... 88
Overhead console ................... 438
Overheating, Engine ............... 594
MN
O
*: Refer to “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL” 
     
        
          
   
    
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