2009 Lexus GS 350 Owners Manual - Page 611

5-2. Steps to take in an emergency STEP 6 Add coolant if necessary. Water can be used in an emergency measure if coolant is unavailable. (→P. 566) Have the vehicle checked at your nearest Lexus dealer as soon as possible. n Overheating In the following situations, 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 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 food, do not open the food until the steam 5 When trouble arises 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. 553 GS_G_U (OM30B43U) March 8, 2010 10:20 am