Lexus GX460 Manual page 750

5-2. Steps to take in an emergency
Overheating
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In the following situations, your vehicle may be overheating:
The engine coolant temperature gauge enters the red zone or a loss of power is
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experienced.
Steam is coming from under the hood.
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CAUTION
To prevent an accident or injury when inspecting under the hood of your vehicle
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If steam is seen coming from under the hood, do not open the hood until the
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steam has subsided. The engine compartment may be very hot, causing serious
injury such as burns.
Keep hands and clothing away from the fan and engine drive belt while the
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engine is running.
Do not loosen the radiator cap while the engine and radiator are hot.
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Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
NOTICE
When adding engine coolant
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Wait until the engine has cooled down before adding coolant.
When adding coolant, do so slowly. Adding cold coolant to a hot engine too quickly
can cause damage to the engine.
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GX460_U.S.A. (OM60G24U)