If Your Vehicle Overheats (Lc500); If Your Vehicle Overheats (Lc500H) - Lexus LC500 2017 Owner's Manual

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7-2. Steps to take in an emergency
If your vehicle overheats
(LC500)
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge (→P.74) is in the red zone
or a loss of engine power is expe-
rienced. (For example, the vehicle
speed does not increase.)
 "Engine Coolant Temp High" is
shown on the multi-information
display.
 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
LC500_LC500h_OM_OM11405U_(U)
radiator core (radiator) for any
leaks.
Radiator
A
Cooling fan
B
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4 The coolant level is satisfactory if it
is between the "F" and "L" lines on
the reservoir.
Reservoir
A
"F"
B
"L"
C
Coolant inlet cap
D
5
Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.