Toyota 2013 Prius Owner's Manual page 623

5-2. Steps to take in an emergency
If your vehicle overheats
The following may indicate that your vehicle is overheating.
● The high coolant temperature warning light (→P. 534) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
● "HYBRID SYSTEM OVERHEAT" (→P. 552) is shown on the
multi-information display.
● Steam comes out from under the hood.
Correction procedures
If the high coolant temperature warning light comes on or
■
flashes
Stop the vehicle in a safe place and turn off the air condition-
1
ÉTAPE
ing system, and then stop the hybrid system.
If you see steam:
2
ÉTAPE
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
STEP 3
600
PRIUS PHV_OM_OM47787U_(U)
After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.