Do-it-yourself service precautions If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. Maintenance

Items	Parts and tools
12-volt battery condition (12-volt battery)	Warm water Baking soda Grease Conventional wrench (for terminal clamp bolts)
Brake fluid level (Checking and adding the brake fluid)	FMVSS No.116 DOT 3 or SAE J1703 brake fluidFMVSS No.116 DOT 4 or SAE J1704 brake fluid Rag or paper towel Funnel (used only for adding brake fluid)
Engine/power control unit coolant level (Checking the coolant)	“Toyota Super Long Life Coolant” or a similar high quality ethylene glycol-based non-silicate, non-amine, non-nitrite and non-borate coolant with long-life hybrid organic acid technologyFor 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 coolant)
Engine oil level (Checking and adding the engine oil)	“Toyota Genuine Motor Oil” or equivalent Rag or paper towel Funnel (used only for adding engine oil)
Fuses (Checking and replacing fuses)	Fuse with same amperage rating as original
Hybrid battery (traction battery) air intake vent (Cleaning the hybrid battery (traction battery) air intake vent and filter)	Vacuum cleaner, etc. Phillips screwdriver
Light bulbs (Light bulbs)	Bulb with same number and wattage rating as original Flathead screwdriver Wrench
Radiator and condenser (Checking the radiator and condenser)
Tire inflation pressure (Tire inflation pressure)	Tire pressure gauge Compressed air source
Washer fluid (Adding the 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 Make sure that the “ACCESSORY” or “IGNITION ON” on the multi-information display and the “READY” indicator are both off. Keep hands, clothing and tools away from the moving fans. Be careful not to touch the engine, power control unit, 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 12-volt battery. Fuel and 12-volt battery fumes are flammable. Be extremely cautious when working on the 12-volt battery. It contains poisonous and corrosive sulfuric acid. When working near the electric cooling fans or radiator grille Be sure the power switch is OFF.With the power switch in ON, the electric cooling fans may automatically start to run if the air conditioning is on and/or the coolant temperature is high. (Checking the radiator and condenser) 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.