If Your Vehicle Overheats - Toyota PRIUS 2023 Manual

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7-2. Steps to take in an emergency
If your vehicle over-
heats
The following may indicate
that your vehicle is over-
heating.
 The high coolant tempera-
ture warning light (P.82,
463) comes on or flashes,
or a loss of hybrid system
power is experienced. (For
example, the vehicle speed
does not increase.)
 "Engine Coolant Temp High
Stop in a Safe Place See
Owner's Manual" or "Hybrid
System Overheated Output
Power Reduced" is shown
on the multi-information dis-
play.
 Steam comes out from
under the hood.
Correction procedures
If the high coolant tempera-
■
ture warning light comes on
or flashes or "Engine Cool-
ant Temp High Stop in a
Safe Place See Owner's
Manual" is shown on the
multi-information display
1
Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the hybrid system.
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 hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
A
Cooling fans
B
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4
The coolant level is satisfac-
tory if it is between the "MAX"
and "MIN" lines on the reser-
voir.
Reservoir
A
"MAX" line
B
"MIN" line
C
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