Dimensions and weights
*1: Unladen vehicle
*2: The model code is indicated on the Certification Label. For details, see
“Vehicle identification” below.
*3: The towing package is required.
Toyota does not recommend towing with this vehicle without the towing package.
Vehicle identification
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 Certification Label on the driver’s side center pillar.
Engine number
The engine number is stamped on the engine block as shown.
Engine
Fuel
Lubrication system
*: The engine oil capacity is a reference quantity to be used when changing the engine 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 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):
How to read oil container label: The International Lubricant Specification Advisory Committee (ILSAC) Certification Mark is added to some oil containers to help you select the oil you should use.
Cooling system
Ignition system
NOTICE Iridium-tipped spark plugs Use only iridium-tipped spark plugs. Do not adjust spark plug gap. |
Electrical system
Automatic transaxle
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Toyota dealer.
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. |
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 of matching quality to satisfy the above specification. Please contact 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 of matching quality to satisfy the above specification. Please contact your Toyota dealer for further details.
Brakes
*1: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50 kgf) while the engine is running *2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N, 30.6 kgf)
Steering
Tires and wheels
Light bulbs
*1: Vehicles with LED type daytime running lights
*2: Vehicles without daytime running lights or with bulb type daytime running
lights
*3: Vehicles with bulb type stop/tail lights
General information
A large number of ECU controlled systems are used in the
SIENNA. In general, ECU controlled systems are considered
to be very intricate, requiring a high level of technical
knowledge to troubleshoot. However, most problem checking
procedures only involve inspecting the ECU controlled
system's c ...
On-vehicle inspection
1. INSPECT THROTTLE BODY
(a) Listen to the throttle control motor operating sounds.
(1) Turn the ignition switch to the ON position.
(2) When pressing the accelerator pedal position
sensor lever, listen to the running motor. Make
sure that no friction noise comes from the
motor.
If fricti ...
ECM Communication Circuit Malfunction
DTC C1203/53 ECM Communication Circuit Malfunction
DESCRIPTION
The circuit is used to send TRAC and VSC control information from the skid
control ECU to the ECM, and
engine control information from the ECM to the skid control ECU through the CAN
communication
system.
INSPECTION PROCEDURE
1 ...