2012 Toyota Prius Navigation Manual - Page 327

2. ADVANCED PARKING GUIDANCE SYSTEM 1. INTRODUCTION ADVANCED PARKING GUIDANCE SYSTEM The advanced parking guidance system helps back up parking by combining and displaying guide lines on a rear-view image in order to provide a reference for back up maneuvering, as well as automatically controlling the steering wheel when backing into a target parking position set on the screen. The system will not automatically back up or regulate speed. The advanced parking guidance system is not an automatic parking system. It is a system to assist back up parking. As the system only assists with parking in a set target parking position, there are times when the system will be unable to render this assistance, depending on factors such as road surface or vehicle condition, or the distance to the set target parking position.