Toyota Sienna Service Manual: Under hood
GENERAL MAINTENANCE
1. GENERAL NOTES
- Maintenance requirements very depending on the country.
- Check the maintenance schedule in the owner's manual supplement.
- Following the maintenance schedule is mandatory.
- Determine the appropriate time to service the vehicle using either miles driven or time elapsed, whichever reaches the specification first.
- Maintain similar intervals between periodic maintenance unless noted.
- Failing to check each vehicle part could lead to poor engine performance and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
(a) Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
(a) Check that the coolant level is between the "FULL" and "LOW" lines on the see-through reservoir.
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and free of leaves, dirt and bugs.
(b) Check the hoses for cracks, kinks, rotting or loose connections.
5. BATTERY ELECTROLYTE LEVEL
(a) Check that the electrolyte level of all the battery cells is between the upper and lower lines on the case.
HINT:
If the electrolyte level is difficult to see, lightly shake the vehicle.
6. BRAKE FLUID LEVEL
(a) Check that the brake fluid levels are near the upper level line on the see-through reservoirs.
7. ENGINE DRIVE BELT
(a) Check the drive belt for fraying, cracks, wear and oiliness.
8. ENGINE OIL LEVEL
(a) Check that the level of engine oil is between "F" and "L" on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL
(a) Check the level on the dipstick.
(b) The level should be in the "HOT" or "COLD" range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
(a) Park the vehicle on a level surface.
(b) With the engine idling and the parking brake applied, shift the selector into all the positions from "P" to "L", and then shift into the "P" position.
(c) Pull out the dipstick and wipe off the fluid with a clean shop rag. Re-insert the dipstick and check that the fluid level is in the "HOT" range.
(d) Perform this check with the fluid at the normal driving temperature (70 to 80°C, 158 to 176°F).
HINT: Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at high speed, in hot weather, in heavy traffic or after pulling a trailer.
11. EXHAUST SYSTEM
(a) Check for unusual exhaust sounds or abnormal exhaust fumes. Locate the cause and correct it.
Outside vehicle
General maintenance
Check the parts of the vehicle described below on a daily
basis. Performing maintenance checks on the vehicle is the
owner's responsibility. The owner may take the vehicle to a
...
Engine
GENERAL MAINTENANCE
HINT:
Inspect these items when the engine is cold.
1. INSPECT DRIVE BELT
HINT:
(See page EM-6)
2. REPLACE SPARK PLUGS
HINT:
(See page IG-8)
3. INSPECT AIR FILTER
(a) ...
Other materials:
Audio system types
Entune Audio
Entune Audio Plus/Entune Premium Audio with Navigation
Owners of models equipped with a navigation system should refer to
the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S
MANUAL”.
Using cellular phones
Interference may be heard through the audio system’s speakers if a c ...
On-vehicle inspection
1. INSPECT BACK WINDOW (DEFOGGER WIRE)
NOTICE:
When cleaning the glass, wipe the glass along the
wire using a soft and dry cloth. Take care not to
damage the wires.
Do not use detergents or glass cleaners including
abrasive ingredients.
When measuring voltage, wr ...
Back Door Closer Switch Malfunction
DTC B2215 Back Door Closer Switch Malfunction
DESCRIPTION
This DTC is output when a malfunction occurs in the position switch in the
back door. This position switch
detects if the back door is in the latch position and sends a position signal to
the power back door ECU.
DTC No.
...
