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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.