2012 TOYOTA SIENNA Owners Manual

785
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
*1: Unladen vehicle
*2: The model code is indicated on the Certification Label. For details, see
“Vehicle identification” below.
Vehicle identification
■ Vehicle identification number
The vehicle identificati on 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 Certi-
fication Label on the driver’s side
center pillar.
Trailer Weight Rating
(TWR)
(Trailer weight
+ cargo weight)
(with towing package)Without brake 1650 lb. (750 kg)
With brake 3500 lb. (1588 kg)

786 6-1. Specifications
SIENNA_U (OM45477U)■
Engine number
The engine number is stamped on the engine bl ock as shown.
1AR-FE engine
2GR-FE engine

787
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
Engine
Fuel
Model
1AR-FE, 2GR-FE
Type
1AR-FE engine
2GR-FE engine 4-cylinder in line, 4-cycle, gasoline
6-cylinder V type, 4-cycle, gasoline
Bore and stroke
1AR-FE engine
2GR-FE engine 3.54 
4.13 in. (90.0  105.0 mm)
3.70  3.27 in. (94.0  83.0 mm)
Displacement
1AR-FE engine
2GR-FE engine 163.1 cu.in. (2672 cm3)
210.9 cu.in. (3456 cm3)
Drive belt tension Automatic adjustment
Valve clearance
Fuel typeUnleaded gasoline only
Octane rating87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference) 20.9 gal. (79 L, 17.4 Imp.gal.)

788 6-1. Specifications
SIENNA_U (OM45477U)
Lubrication system
*: The engine oil capacity is a reference quantity to be used when changing theengine oil. Warm up and turn off the engine, wait more than 5 minutes, and
check the oil level on the dipstick.
■ 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 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 capacity
(Drain and refill 
reference
*)
1AR-FE engine
2GR-FE engine Without filter: 4.2 qt. (4.0 L, 3.5 Imp.qt.)
With filter: 4.6 qt. (4.4 L, 3.9 Imp.qt.)
Without filter: 6.0 qt. (5.7 L, 5.0 Imp.qt.)
With filter: 6.4 qt. (6.1 L, 5.4 Imp.qt.)
Outside temperature

789
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
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 with 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 ILSAC (International Lubric ant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.

790 6-1. Specifications
SIENNA_U (OM45477U)
Cooling system
Ignition system
Capacity 1AR-FE engine
2GR-FE engine 9.2 qt. (8.7 L, 7.7 Imp.qt.)
Without towing package
11.0 qt. (10.4 L, 9.2 Imp.qt.)
With towing package 11.7 qt. (11.1 L, 9.8 Imp.qt.)
Coolant type Use either of the following.
• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technol-
ogy
Do not use plain water alone.
Spark plug
Make DENSO 1AR-FE engine
2GR-FE engine
Gap SK16HR11
FK20HR11
0.043 in. (1.1 mm)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust spark plug gap.

791
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
Electrical system
Automatic transaxle
*: The fluid capacity is a reference q
uantity. If replacement is necessary,
contact your Toyota dealer.
Battery
Open voltage* at
68 F (20 C): 12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11 . 8
 12.0 V Discharged
(
*: Voltage checked 20 minutes after the engine
and all the lights turned off)
Charging rates 5 A max.
Fluid capacity*
2WD models
AWD models6.9 qt. (6.5 L, 5.7 Imp.qt.)
7.1 qt. (6.7 L, 5.9 Imp.qt.)
Fluid type
Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by
vibration and, ultimately, damage to the vehicle’s transmission.

792 6-1. Specifications
SIENNA_U (OM45477U)
Transfer (AWD models)
Your Toyota vehicle is filled with “Toyota Genuine Differential Gear Oil” at the
factory. Use Toyota approved “Toyota Genuine Differential Gear Oil” or an
equivalent oil of matching quality to satisfy the above specification. Please con-
tact your Toyota dealer for further details.
Rear differential (AWD models)
Your Toyota vehicle is filled with “Toyota Genuine Differential Gear Oil” at the
factory. Use Toyota approved “Toyota Genuine Differential Gear Oil” or an
equivalent oil of matching quality to satisfy the above specification. Please con-
tact your Toyota dealer for further details.
Oil capacity0.85 qt. (0.80 L, 0.70 Imp.qt.)
Oil type and viscosityToyota Genuine Differential Gear Oil LT
SAE 75W-85 GL-5 or equivalent
Oil capacity
0.53 qt. (0.50 L, 0.44 Imp.qt.)
Oil type and viscosityToyota Genuine Differential Gear Oil LT
SAE 75W-85 GL-5 or equivalent