2011 Toyota Prius Navigation Manual - Page 236

ADVANCED PARKING GUIDANCE SYSTEM D If the red area which denotes an area unsuitable for parking overlaps with the lines of the parking space, you will be unable to park, as the parking space is judged as being an area unsuitable for parking. Progress to a position where the parking space lines do not overlap with such an area. 7. Position yourself as you would when backing up normally, and rest your hands on the steering wheel without applying any pressure. Check your surroundings and behind the vehicle for safety, and slowly back up, using the brake pedal to control the vehicle's speed. , assistance is canIf you touch celed. If the vehicle's backing up speed is too fast, a warning tone will sound and the message "Speed is too fast." will be displayed. If you continue to back up at that speed, the system will be disabled. Back up at a speed that does not cause the warning tone to sound. The green frame displayed on the screen is approximately the same size as your vehicle. (The green frame displayed when setting the target parking position is the size of a normal parking space.) 238