2011 Lexus RX 350 Owners Manual - Page 657

5-2. Steps to take in an emergency STEP 6 Add engine coolant if necessary. Water can be used in an emergency if engine coolant is unavailable. (→P. 599) Have the vehicle inspected at the nearest Lexus dealer as soon as possible. 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 comes 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 injuries such as burns. l Keep hands and clothing away from the fans and 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. 588