Toyota prius Owner's Manual page 244

2-2. Instrument cluster
 Names and meaning of each icons
244
PRIUS_OM_OM47871E_(EE)
Hybrid battery (traction bat-
tery) status (P. 57)
EV indicator
The EV indicator comes on when
the vehicle is driven using only
the electric motor (traction motor)
or the gasoline engine is stopped.
Eco Driving Indicator Light
Turns on when the vehicle is
driven in Eco-friendly.
Hybrid System Indicator
Refer to "Reading Hybrid System
Indicator" below.
*
Average speed
Average fuel consumption/eco
*
savings
Use the displayed average fuel
consumption as a reference.
*
: The current amount since the
trip meter was reset will be dis-
played. These functions can be
reset by pressing and holding
the "TRIP" button.
The display can be switched
between average fuel con-
sumption/average speed and
eco savings. (P. 251)