Subaru WRX & WRX STI Manuals 2017 WRX & WRX STI Owner’s Manual | Page 395

7-20 Starting and operating/Driver’s Control Center Differential (C.DIFF/DCCD) (STI) tial and rear differential. This sound occurs because of the structure of the center differential. It does not indicate a problem. CAUTION . All the indicators will flash in the event that the driver’s control center differential has a malfunction. Have the vehicle inspected by your SUBARU dealer. . If a malfunction occurs in the vehicle (for example, when the rear differential oil temperature warning light illuminates), all of the indicators may disappear and the setting value for the initial limited slip differential (LSD) torque of the driver’s control center differential (C.DIFF/DCCD) may be cancelled. However, it does not indicate a malfunction of the C.DIFF/DCCD itself. 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 switch, you can set an initial LSD torque to match the road surface conditions, driving conditions and your driving style. & To change mode of driver’s control center differential 1) 2) 3) 4) A) B) LSD torque Traction torque Initial LSD torque (maximum) Initial LSD torque (minimum) Initial LSD torque (adjustable) Mechanical LSD torque The driver’s control center differential has an auto mode and a manual mode. In the auto mode, the system automatically adjusts the initial LSD torque. In the manual mode, you can change to the desired mode manually by using the center differential control switch. NOTE 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 differen- Press the “AUTO-MANU” switch on the center console to switch from auto mode to manual mode or vice versa. When you select the auto mode, the “AUTO” indicator appears. When you select the manual mode, the “AUTO” indicator disappears.