Lexus GS 450h 2008 Owner's Manual page 541

STEP 6
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
Overheating
■
In the following situations, your vehicle may be overheating.
The engine coolant temperature gauge enters the red zone or a loss of power is
●
experienced.
Steam is coming from under the hood.
●
The message "HYBRID SYSTEM OVERHEAT" is displayed on the multi-infor-
●
mation display.
CAUTION
To prevent an accident or injury when inspecting under the hood of your vehicle
■
Keep hands and clothing away from the fan and engine drive belt while the hybrid
●
system is running.
Do not loosen the radiator cap while the hybrid system and radiator are hot.
●
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
5-2. Steps to take in an emergency
Add coolant if necessary.
Water can be used in an emer-
gency measure if coolant is
unavailable. (→P. 548)
5
539