2006 Subaru Impreza Owner's Manual - Page 210

The driver’s control center differential allows you to freely change the degree of limitation of the differential action (limited slip differential (LSD) torque) of your vehicle’s center differential. By using the center differential control dial, you can set an initial LSD torque to match the road surface conditions, driving conditions and your driving style. In the event of failure of the driver’s control center differential, the “ ” indicator light will flash. Have the vehicle inspected by your SUBARU dealer. Auto mode Starting and operating 7-13 1 LOCK A B 2 700378 NOTE 1) 2) A) B) LSD torque Traction torque Initial LSD torque (adjustable) Mechanical LSD torque If you rapidly depress and release the accelerator pedal while driving at low speed, you may hear a knocking sound from the vicinity of the center differential and rear differential. This sound occurs because of the structure of the center differential. It does not indicate a problem. In the auto mode, the system estimates the driving and road conditions using signals from the wheel speed sensor, throttle position sensor, steering angle sensor and brake switch, etc. According to the result, it electronically and automatically controls the degree of limitation of the differential action (LSD torque) to optimize the differential action of the center differential. When the ignition switch is turned ON, the “AUTO” indicator light in the combination meter comes on. The system can be switched to a manual mode. In the manual mode, you can use the center differential control dial to adjust the ini– CONTINUED – 700123 Manual mode