2012 Toyota Prius Navigation Manual - Page 349
2012 Toyota Prius Manual
Page 349 highlights
2. ADVANCED PARKING GUIDANCE SYSTEM 4. PARALLEL PARKING ASSIST MODE PARALLEL PARKING ASSIST MODE Parallel parking assist mode assists the driver with parallel parking by automatically controlling the steering wheel when backing up, in order to park in the target position set on the screen. This mode can be used when the assist mode is ON.