Toyota Prius 2011 Manual page 510

5-2. Steps to take in an emergency
Warning light
510
Warning light/Details
Tire pressure warning
light
When the light comes on:
Low tire inflation pres-
sure.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system.
High coolant tempera-
ture warning light
Indicates high engine
coolant temperature
Master warning light
A buzzer sounds and the
warning light comes on
and flashes to indicate
that the master warning
system has detected a
malfunction.
Correction
procedure
Adjust the tire
inflation pressure.
Have the system
checked by your
Toyota dealer.
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P. 517