2011 Toyota Prius Owners Manual - Page 263

2-4. Using other driving systems 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 guide lines on the screen and the actual distance/ course on the road. 2 Approx. 3.0 ft. (1.0 m) The distance that appears on the screen between three-dimensional objects (such as vehicles) and flat surfaces (such as the road) and the actual distance differ as follows. In reality, C = A < B (C and A are equally far away; B is farther than C and A). However, on the screen, the situation appears to be A < B < C. On the screen, it appears that a truck is parking about 3.0 ft. (1.0 m) away. However, in reality if you back up to point A, you will hit the truck. When driving 237 PRIUS_U (OM47685U) DVD