2011 Subaru Impreza Owner's Manual - Page 285

7-22 Starting and operating cause a braking effect accompanied by vibration and noise. This does not indicate a problem. The phenomenon will disappear when setting the initial LSD torque to the minimum. In the auto mode, it controls the initial LSD torque automatically. While in the auto mode, this phenomenon sometimes occurs depending on the driving condition, however, it does not indicate a problem. . Use the center differential indicator light only as a rough indication of the initial LSD torque. . If you operate the center differential control switch while quickly accelerating or turning a tight corner, you may feel slight shocks. This is due to differential action by the center differential and does not indicate a problem. Automatic transmission The automatic transmission is electronically controlled and provides 4 forward speeds and 1 reverse speed. Also, it has a manual mode and a SPORT mode. WARNING Do not shift from the "P" or "N" position into the "D" or "R" position while depressing the accelerator pedal. This may cause the vehicle to jump forward or backward. "R" position or vice versa until the vehicle has completely stopped. Such shifting may cause damage to the transmission. . When parking the vehicle, first securely apply the parking brake and then place the select lever in the "P" position. Avoid parking for a long time with the select lever in any other position as doing so could result in a dead battery. CAUTION . Shift into the "P" or "R" position only after the vehicle is completely stopped. Shifting while the vehicle is moving may cause damage to the transmission. . Do not race the engine for more than 5 seconds in any position except the "N" or "P" position when the brake is set or when chocks are used in the wheels. This may cause the automatic transmission fluid to overheat. . Avoid shifting from one of the forward driving positions into the NOTE . When the engine coolant temperature is still low, the automatic transmission will upshift to higher engine speeds than when the coolant temperature is sufficiently high in order to shorten the warm-up time and improve driveability. The gearshift timing will automatically shift to the normal timing after the engine has warmed up. . Immediately after ATF (automatic transmission fluid) is replaced, you may feel that the automatic transmission operation is somewhat unusual. This results from invalidation of data which the on-board computer has collected and stored in memory to & Temporary release When the driver stops the vehicle and pulls the parking brake lever after manually setting the initial LSD torque, the LSD torque is temporarily minimized. However the indicator on the combination meter continues to show the driver's selected initial LSD torque. When the driver releases the parking brake lever, the initial LSD torque set by the driver is restored.