2011 Toyota Avalon Owners Manual - Page 524

5-2. Steps to take in an emergency CAUTION n To prevent an accident or injury when inspecting under the hood of your vehicle l If steam is seen coming from under the hood, do not open the hood until the steam has subsided. The engine compartment may be very hot, causing serious injury such as burns. l Keep hands and clothing away from the fan and engine drive belt while the engine is running. l Do not loosen the radiator cap while the engine and radiator are hot. Serious injury, such as burns, may result from hot coolant and steam released under pressure. NOTICE n When adding engine coolant Wait until the engine has cooled down before adding engine coolant. When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly can cause damage to the engine. 502 AVALON_U (OM41428U)