2006 Lexus RX 400h Owners Manual - Page 629

ELECTRICAL COMPONENTS If the headlights or other electrical components do not work and the blade type fuses are O.K., check the cartridge type fuses. If any of the cartridge type fuses are blown, they must be replaced. If there is an overload in the circuits, the fuses are designed to blow before the entire wiring harness is damaged. ADDING WASHER FLUID CAUTION Always use a genuine Lexus fuse or equivalent for replacement. Never install an ordinary wire - even for a temporary fix. This may cause extensive damage and possibly a fire. If the washer tank becomes nearly empty, add washer fluid. NOTICE Before replacing the fuses, have the cause of electrical overload determined and repaired by your Lexus dealer. You may use plain water as washer fluid. However, in cold areas where temperatures range below the freezing point, use washer fluid containing antifreeze. This product is available at your Lexus dealer and most auto parts stores. Follow the manufacturer's directions for how much to mix with water. NOTICE Do not use engine antifreeze or any other substitute because it may damage your vehicle's paint. 593