550
7-2. Steps to take in an emergency
Intercooler coolant
Reservoir
“F” line
“L” line
5 Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
Engine coolant
Intercooler coolant
6 Start the engine to check that the
radiator cooling fan operates and
to check for coolant leaks from the
radiators or hoses.
7 If the fans are not operating:
Stop the engine immediately and
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the
nearest Lexus dealer.
8 Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner’s Manual” is shown on the
multi-information display.
If the message does not disappear: Stop
the engine and contact your Lexus dealer.
If the message is not displayed: Have the
vehicle inspected at the nearest Lexus
dealer.
A
B
C
■ When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
● If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
● Keep hands and clothing (especially a
tie, a scarf or a muffler) away from the
fans and belts. Failure to do so may
cause the hands or clothing to be
caught, resulting in serious injury.
● Do not loosen the engine coolant res-
ervoir cap while the engine and engine
radiator are hot. High temperature
steam or coolant could spray out.
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