2011 Toyota Prius Owners Manual - Page 262
2011 Toyota Prius Manual
Page 262 highlights
2-4. Using other driving systems Driving precautions When the grade behind the vehicle slopes up sharply, objects appear to be farther away than they actually are. When the grade behind the vehicle slopes down sharply, objects appear to be closer than they actually are. 236 PRIUS_U (OM47685U) DVD