Toyota Prius Owner's Manual page 518

5-2. Steps to take in an emergency
Warning message
(Flashes)
(Flashes)
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518
PRIUS_OM_OM47A19E_(EE)
Details
The hybrid battery (traction
battery) power has dropped
because a long period of time
has elapsed after shifting the
shift position to N.
A buzzer also sounds.
The transmission is out of P
when attempting to start the
hybrid system.
The driver's door is opened
when the shift position is in N,
D or B with the hybrid system
on.
Indicates that the accelerator
pedal is depressed while the
shift position is in N.
A buzzer also sounds.
Correction
procedure
Restart the hybrid
system when start-
ing the vehicle.
Shift the shift posi-
tion to P before
pressing the
"POWER" switch.
Shift the shift posi-
tion to P.
Release the accel-
erator pedal and
shift the shift posi-
tion to D or R.