Subaru WRX & WRX STI Manuals 2011 Impreza WRX & WRX STI Owner's Manual | Page 304

7-42 Starting and operating A slight jolt may be felt when the vehicle begins to move forward after being reversed. If the braking power of the Hill start assist system is insufficient after the brake pedal is released, apply more braking power by depressing the brake pedal again. & To activate/deactivate the Hill start assist system (STI) CAUTION While the Hill start assist system is deactivated, when starting on an uphill grade, braking power is not maintained if the brake pedal is released. Start on an uphill grade by using the parking brake. You can activate/deactivate the Hill start assist system according to the following procedure. ! To deactivate 1. Stop your vehicle in a flat and safe place and apply the parking brake. 2. Turn off the engine. 3. Restart the engine. 4. Confirm the following items. . The ABS warning light turns off. . The Vehicle Dynamics Control OFF indicator light turns off. . The Brake system warning light illuminates. 5. Press the Vehicle Dynamics Control mode switch and hold it until the Vehicle Dynamics Control OFF indicator light turns off. The Vehicle Dynamics Control OFF indicator light will illuminate in green, change to yellow, remain illuminated in yellow for several seconds and then turn off. 6. Within 5 seconds after the Vehicle Dynamics Control OFF indicator light turns off, release the Vehicle Dynamics Control mode switch.