2011 Toyota Prius Navigation Manual - Page 221

ADVANCED PARKING GUIDANCE SYSTEM (b) When the pre−support function is not in use " 1 Approx. 3 ft. (1 m) 2 Desired parking location 1. Move your vehicle slowly to a position parallel to the road or shoulder approximately 3 ft. (1 m) away from parked vehicles. To facilitate the setting of the target parking position, the front side sensors detect the vehicles parked in front of and behind the parking space and identify the target parking position. 2. Stop your vehicle in a position where you can see the front edge of the leading parked vehicle right beside you, with the steering wheel straight. 223