Subaru WRX & WRX STI Manuals 2016 WRX & WRX STI Owner’s Manual | Page 418

Starting and operating/SI–DRIVE (STI) . Do not keep the vehicle in a stationary position on an uphill grade by using the “D” position. Use the brake instead. . The engine may, on rare occasions, knock when the vehicle rapidly accelerates or rapidly pulls away from a standstill. This phenomenon does not indicate a malfunction. SI-DRIVE (STI) SI-DRIVE (SUBARU Intelligent Drive) works to maximize engine performance, control and efficiency. This system consists of three modes: Intelligent (I), Sport (S), and Sport Sharp (S#). By adjusting the SI-DRIVE selector, the character of the power unit changes. 7-29 This is ideal for around-town driving and situations that do not require full power output. It provides better control in difficult driving conditions, such as slippery roads or loose surfaces, due to gentler throttle response. & Intelligent (I) mode ! For smooth, efficient performance driving When the Intelligent (I) mode is selected, a shift-up indicator “ ” on the combination meter will blink to signal the best time to shift gears for maximum fuel efficiency. The Intelligent (I) mode provides wellbalanced performance with greater fuel efficiency and smooth driveability without stress. Power delivery is moderate during acceleration for maximum fuel efficiency. – CONTINUED –