2009 Subaru Impreza Owner's Manual - Page 241

Starting and operating 7-21 & Manual mode ! Center differential control switch and indicator light In the manual mode, you can use the center differential control switch to adjust the initial LSD torque as desired. When this mode is selected, the "AUTO" indicator light on the combination meter turns off. The control switch is located beside the parking brake lever. By pushing the control switch forward or pulling it rearward, it is possible to change the initial LSD torque. The center differential indicator lights on the combination meter give six levels of indication. The indicator lights and control switch are linked; when the switch is pushed or pulled to change the initial LSD torque, the illumination position of the indicator lights changes accordingly. 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. - CONTINUED -