If Your Vehicle Overheats - Lexus 2013 IS250 Owner's Manual

If your vehicle overheats

The following may indicate that your vehicle is overheating.

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.
Correction procedures
1
Stop the vehicle in a safe place and turn off the air conditioning system,
and then stop the engine.
2
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
3
After the engine has cooled down
sufficiently, inspect the hoses and
radiator core (radiator) for any
leaks.
1
Radiator
2
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Lexus dealer or repairer, or
another
equipped professional.
4
The coolant level is satisfactory
if it is between the "FULL" and
"LOW" lines on the reservoir.
1
Reservoir
2
"FULL"
3
"LOW"
IS250_EE(OM53B11E)
8-2. Steps to take in an emergency
duly qualified and
531
8