Toyota PRIUS ALPHA 2012 Quick Reference Manual page 529

5-2. Steps to take in an emergency
Warning message
(If equipped)
(Flashes)
514
Details
Indicates that the LKA is not
currently functional.
Alerts the driver that the vehi-
cle is out of the lanes (while
the LKA system is operating).
A buzzer also sounds. The
lane markings and/or the
steering wheel marking flash.
At the same time,
will appear on the
head-up display (the image
flashes).
The hybrid system has over-
heated.
A buzzer also sounds.
This message may be dis-
played when driving under
severe operating conditions.
(For example, when driving
up a long steep hill.)
The hybrid battery (traction
battery) is low.
A buzzer also sounds.
Correction
procedure
Restart the LKA.
In case of over-
heating, the system
will become func-
tional once the sys-
tem cools down.
Check around the
vehicle and back to
inside of the lane
markings.
Stop and check.
(→P. 549)
When stopping the
vehicle for a long
period of time, shift
the shift position to
P. The hybrid bat-
tery (traction bat-
tery) cannot be
charged with the
shift position in N.