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:
Interior lights
When leaving your vehicle, make sure the lights are turned off to avoid battery discharge. ...
Brake pad and lining
While maintaining a speed of 30 to 40 mph (50 to 65 km/h), step on the brake
pedal lightly. Repeat this five or more times. ...
Precautions for AWD models with automatic transmission
Your vehicle is equipped with the AWD (All-Wheel Drive) system. In addition, if your vehicle is an AT model, before driving your vehicle with the temporary spare tire, deactivate the AWD capability of ...
