Lexus RX Owners Manual (RX450h): Do-it-yourself service precautions

Lexus RX Owners Manual (RX450h) / Maintenance and care / Do-it-yourself maintenance / Do-it-yourself service precautions

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

Items	Parts and tools
12-volt battery condition	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/power control unit coolant level	"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 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 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
Headlight aim*	Phillips-head screwdriver
Light bulbs	Bulb with same number and wattage rating as original Flathead screwdriver Wren
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)

*: Vehicles with single-beam headlights

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 fan and engine drive belt.
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. Fuel fumes are flammable.

■ When working near the electric cooling fans or radiator grille Be sure the power switch is off.

With the power switch in ON mode, 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.

Hood

Release the lock from the inside of the vehicle to open the hood.

1. Pull the hood lock release lever.

The hood will pop up slightly.

Lexus RX. Do-it-yourself maintenance

2. Pull up the auxiliary catch lever and lift the hood.

Lexus RX. Do-it-yourself maintenance

WARNING

■ Pre-driving check Check that the hood is fully closed and locked.

If the hood is not locked properly, it may open while the vehicle is in motion and cause an accident, which may result in death or serious injury.

Positioning a floor jack

When using a floor jack, follow the instructions in the manual provided with the jack and perform the operation safely.

When raising your vehicle with a floor jack, position the jack correctly.

Improper placement may damage your vehicle or cause injury.

Front

Lexus RX. Do-it-yourself maintenance

Rear

Lexus RX. Do-it-yourself maintenance

Engine compartment

Washer fluid tank Brake fluid reservoir Engine oil level dipstick Engine coolant reservoir Power control unit coolant reservoir Fuse boxes Radiator Power control unit coolant rad ...

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