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7
7-2. Steps to take in an emergency
When trouble arises
GS350_300_GS F_OM_OM30J17E_(GE)
If your vehicle overheats
● The needle of the engine coolant temperature gauge (P. 104, 109) enters
the red zone or a loss of engine 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” is
shown on the multi-information display.
● Steam is coming from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The following may indicate that your vehicle is overheating.
Correction procedures
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