2013 Toyota Sienna Navigation Manual - Page 406
2013 Toyota Sienna Manual
Page 406 highlights
REAR VIEW MONITOR 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 guide lines 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. 242