Lexus 2013 IS250 - If Your Vehicle Overheats

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8-2. Steps to take in an emergency
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When trouble arises
IS250_EE(OM53B11E)
 The needle of the engine coolant temperature gauge (P. 95) enters
the red zone or a loss of engine power is experienced. (For example,
the vehicle speed does not increase.)
 Steam comes out 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 any autho-
rized Lexus dealer or repairer, or
another duly qualified and
equipped professional.
The coolant level is satisfactory
if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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