2010 Subaru Impreza Owner's Manual - Page 254

Starting and operating 7-29 SI-DRIVE (WRX 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. 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. & Sport (S) mode ! For all-around performance driving & Intelligent (I) mode ! For smooth, efficient performance driving When 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 Sport (S) mode provides the engine power desired by those who want to make the driving experience their own personal adventure. The linear acceleration characteristic of this versatile mode is ideal for normal driving use. 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 -