If Your Vehicle Overheats - Toyota Prius 2019 Manual

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8-2. 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. 684) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
● "Hybrid System Overheated" 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 conditioning
1
system, and then stop the hybrid system.
If you see steam:
2
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the
3
hoses and radiator core (radiator) for any leaks.
Radiator
1
Cooling fans
2
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
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