If Your Vehicle Overheats - Lexus LS 600h L 2015 Owner's Manual

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7-2. Steps to take in an emergency

If your vehicle overheats

The following may indicate that your vehicle is overheating.
The needle of the engine coolant temperature gauge (P. 99) enters
●
the red zone or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
"Hybrid System Overheat" 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
Stop the vehicle in a safe place and turn off the air conditioning sys-
1
tem, and 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
3
cooled
inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
1
Cooling fans
2
If a large amount of coolant
leaks, immediately contact your
Lexus dealer.
LS600hL_U(OM50E41U)
down sufficiently,