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If your vehicle overheats
The following may indicate that your vehicle is overheating.
The needle of the engine coolant temperature gauge (P. 86) enters the red
●
zone or a loss of hybrid system power is experienced. (For example, the vehi-
cle speed does not increase.)
"Engine Coolant Temp High Stop in a Safe Place See Owner' s Manual" or
●
"Hybrid System Overheated Reduced Output Power" (P. 406) is shown on
the multi-information display.
Steam comes out from under the hood.
●
Correction procedures
If the needle of the engine coolant temperature gauge enters the red zone
■
or "Engine Coolant Temp High Stop in a Safe Place See Owner's Manual" is
shown on the multi-information display
Stop the vehicle in a safe place and turn off the air conditioning system, and
1
then stop the hybrid system.
If you see steam:
2
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the hoses and
3
cooling system for leaks.
Radiator
1
Cooling fans
2
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
GS450h_OM_OM30E99U_(U)
7-2. Steps to take in an emergency
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7
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