2011 Lexus IS 250 User Guide - Page 520
2011 Lexus IS 250 Manual
Page 520 highlights
5-2. Steps to take in an emergency STEP 6 Add engine coolant if required. Water can be used in an emergency measure if engine coolant is unavailable. (→P. 554) Have the vehicle checked at your 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 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 hood, do not open the hood until the 5 When trouble arises 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, such as burns, may result from hot coolant and steam released under pressure. 531