Toyota Sienna 2010-2025 Owners Manual: Do-it-yourself service precautions

Toyota Sienna 2010-2025 Owners Manual / Maintenance and care / Do-it-yourself maintenance / Do-it-yourself service precautions

If you perform maintenance yourself, be sure to follow the correct procedure as given in these sections.

Items	Parts and tools
Battery condition	Warm water Baking soda Grease Conventional wrench (for terminal clamp bolts)
Brake fluid level	FMVSS No.116 DOT 3 or SAE J1703 brake fluid Rag or paper towel Funnel (used only for adding brake fluid)
Engine coolant level	Toyota Super Long Life Coolant” or similar high quality ethylene glycol based non-silicate, nonamine, non-nitrite and non-borate coolant with longlife hybrid organic acid technology. For the U.S.A.: “Toyota Super Long Life Coolant” is pre-mixed with 50% coolant and 50% deionized water. For Canada: “Toyota Super Long Life Coolant” is pre-mixed with 55% coolant and 45% deionized water. Funnel (used only for adding engine coolant)
Engine oil level	“Toyota Genuine Motor Oil” or equivalent Rag or paper towel Funnel (used only for adding engine oil)
Fuses	Fuse with same amperage rating as original
Light bulbs	Bulb with same number and wattage rating as original Phillips-head screwdriver Flathead screwdriver Wrench
Radiator and condenser	-
Tire inflation pressure	Tire pressure gauge Compressed air source
Washer fluid	Water or washer fluid containing antifreeze (for winter use) Funnel (used only for adding water or washer fluid)

WARNING

The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized. To avoid death or serious injury, observe the following precautions:

When working on the engine compartment:

Keep hands, clothing and tools away from the moving fan and engine drive belt.
Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving as they may be hot. Oil and other fluids may also be hot.
Do not leave anything that may burn easily, such as paper and rags, in the engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel or the battery.
Fuel and battery fumes are flammable.
Be extremely cautious when working on the battery. It contains poisonous and corrosive sulfuric acid.

When working near the electric cooling fans or radiator grille

Be sure the engine switch is in the “LOCK” position (vehicles without a smart key system) or off (vehicles with a smart key system). With the engine switch in the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicles with a smart key system), the electric cooling fans may automatically start to run if the air conditioning is on and/or the coolant temperature is high.

Safety glasses

Wear safety glasses to prevent flying or falling material, fluid spray, etc.

from getting in your eyes.

NOTICE

If you remove the air cleaner filter

Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air.

Do-it-yourself maintenance

...

Hood

Release the lock from the inside of the vehicle to open the hood. Pull the hood lock release lever. The hood will pop up slightly. Pull up the auxiliary catch lever and lift the ...

Other materials:

Air Mix Damper Position Sensor Circuit (Driver Side)
DESCRIPTION This sensor detects the position of the air mix control servo motor (air outlet damper) and sends the appropriate signals to the A/C amplifier. The position sensor is built in the air mix control servo motor. The position sensor resistance changes as the air mix control servo ...

Oil and oil filter
COMPONENTS REPLACEMENT CAUTION: Prolonged and repeated contact with engine oil will result in the removal of natural oils from the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may caus ...

Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification system. This system detects the conditions of the front passenger seat and activates or deactivates the devices for the front passenger. SRS warning light Seat belt reminder light “AIR BAG OFF” indicator light ...