2012 Lexus HS 250h Owners Manual - Page 552

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5-2. Steps to take in an emergency

CAUTION

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To prevent an accident or injury when inspecting under the hood of your vehicle

●

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.

●

Check that the indicator on the “POWER” switch and the READY indicator are

off.

●

For vehicles with a hybrid system, there are times when the gasoline engine auto-

matically starts to run or the cooling fans suddenly start to operate. Do not touch

or approach the rotating parts of the belt or fans. Doing so may lead to fingers,

clothes or tools getting caught, resulting in injury.

●

Do not loosen the coolant reservoir cap while the hybrid system and radiator are

hot.

Serious injuries, such as burns, may result from hot coolant and steam released

under pressure.

NOTICE

■

When adding engine/power control unit coolant

Wait until the hybrid system has cooled down before adding engine/power control

unit coolant.

When adding coolant, do so slowly. Adding cool coolant to a hot hybrid system too

quickly can cause damage to the hybrid system.

■

To prevent damage to the cooling system

Observe the following precautions:

●

Avoid contaminating the coolant with foreign matter (such as sand or dust etc.)

●

Do not use commercially available coolant additives