2009 Lexus SC 430 Owners Manual - Page 312

5-2. Steps to take in an emergency n Overheating If you observe the following, your vehicle may be overheating. l The engine coolant temperature gauge enters the red zone or a loss of power is experienced. l Steam is coming out from under the hood. 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 other belts while the engine is running. l Do not loosen the radiator cap while the engine and radiator are hot. Serious injury could result from scalding hot fluid and steam blown out under pressure. NOTICE n When adding engine coolant 5 When trouble arises 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. 317