2010 Lexus RX 450h User Guide 2 - Page 480

4-3. Do-it-yourself maintenance CAUTION n When the engine and hybrid system are hot Do not remove the coolant reservoir cap. The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing burns or other injuries. NOTICE n When adding coolant Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze must be used to provide proper lubrication, corrosion protection and cooling. Be sure to read the antifreeze or coolant label. n If you spill coolant Be sure to wash it off with water to prevent damaging to parts or paint. Radiator and condenser Check the radiator and condenser and clear any foreign objects. If either of the above parts are extremely dirty or you are not sure of their condition, have your vehicle checked by your Lexus dealer. CAUTION n The radiators and condenser may be hot after driving 4 Maintenance and care Do not touch the radiator or condenser as they may be hot and burn you. 485