Subaru WRX & WRX STI Manuals 2018 WRX & WRX STI Owner’s Manual | Page 150

3-12 Instruments and controls/REV indicator light and buzzer (STI) NOTE . The ECO gauge shows only an approximate indication. . After resetting the trip meter, the average rate of fuel consumption is not shown until driving 0.6 mile (1 km). Until that time, the ECO gauge does not operate. REV indicator light and buz- zer (STI) 1) REV indicator light The REV alarm system has the following functions. . When the engine speed reaches the level that was previously set, the REV indicator light illuminates to inform you. At this time, a buzzer also sounds if the buzzer setting is activated. . Whenever the engine speed enters the red zone of the tachometer, the REV indicator light flashes. NOTE Even if the REV alarm system is not set, the REV indicator light will flash when- ever the engine speed enters the red zone of the tachometer. To change the REV indicator settings, perform the procedures described in “REV settings (STI)” F3-43.