2011 Subaru Impreza Owner's Manual - Page 284

Starting and operating 7-21 . When a temporary spare tire is installed . When your vehicle is towed . When the vehicle is stopped with the manual mode selected NOTE . A higher initial LSD torque setting gives the vehicle greater traction when driving straight ahead but makes cornering more difficult. Remember this when adjusting the initial LSD torque. In general, higher initial LSD torque settings assist driving on slippery roads and lower settings for non-slippery roads. When the vehicle is stuck in snow or mud, setting the initial LSD torque to the maximum will help to free the vehicle. . The setting of the initial LSD torque will remain even when the auto mode is selected or the ignition switch is turned to the "OFF" position. However, the initial LSD torque will be minimized when the battery is disconnected and reconnected. . During cornering or when making turns (especially when going into the garage), the rotational difference between the front and rear wheels may - CONTINUED - Push the switch forward to increase the initial LSD torque; when the "LOCK" indicator light illuminates, the initial LSD torque setting is maximum. The center differential will then be almost completely locked. Pull the switch rearward to reduce the initial LSD torque. When the lowest position of the driver's control center differential indicator light illuminates, the initial LSD torque will be minimum. Under this condition, only the Mechanical LSD torque will limit the differential action. CAUTION . Do not operate the control switch when a wheel slippage occurs. Wait until the wheelspin has been brought under control. . Under any of the following conditions after setting to the manual mode, pull the center differential control switch to minimize the initial LSD torque: