Shift-up indicator light (STI)
Subaru Impreza / Subaru Impreza Owners Manual / Instruments and controls / Warning and indicator lights / Shift-up indicator light (STI)

While selecting the Intelligent (I) mode of SI-DRIVE, this indicator light illuminates and informs the driver about the upshift timing for fuel-efficient driving.
See also:
Vehicle load limit – how to determine
The load capacity of your vehicle is determined by weight, not by available cargo
space. The load limit of your vehicle is shown on the vehicle placard attached to
the driver’s side B-pillar. Loca ...
Acc
In this position the electrical accessories
(radio, accessory power outlet, etc.) can
be used. ...
Operation
The SRS side airbag and SRS curtain airbag can function only when the ignition
switch is in the “ON” position.
The driver’s and front passenger’s SRS side airbags and SRS curtain airbags deploy
...
