2011 Toyota Prius Navigation Manual - Page 216
2011 Toyota Prius Manual
Page 216 highlights
ADVANCED PARKING GUIDANCE SYSTEM D When any part of the vehicle sags due to the number of passengers or the distribution of the load, there is a margin of error between the set target parking position on the screen and the actual distance/ course on the road. D When the grade behind the vehicle slopes down sharply, objects appear to be closer than they actually are. 218