Toyota Prius Owner's Manual page 581

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If "HYBRID SYSTEM OVERHEAT" is shown on the multi-infor-
mation display
STEP 1
Stop the vehicle in a safe place.
STEP 2
Stop the hybrid system and carefully lift the hood.
STEP 3
STEP 4
PRIUS_OM_OM47A19E_(EE)
5-2. Steps to take in an emergency
After the hybrid system has
cooled down, 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 Toyota dealer or repairer, or
another duly qualified
equipped professional.
The coolant level is satisfactory if
it is between the "F" and "L" lines
on the reservoir.
Reservoir
"F"
"L"
and
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