Lexus LS460 2011 Owner's Manual page 306

2-4. Using other driving systems
Driving precautions
Without navigation system
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.
290
LS460_EE
When any part of the vehicle
sags due to the number of pas-
sengers 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.