2010 Nissan Sentra Owner's Manual - Page 160
2010 Nissan Sentra Manual
Page 160 highlights
DIFFERENCE BETWEEN PREDICTED AND ACTUAL DISTANCES The distance guide line and the vehicle width guide line should be used as a reference only when the vehicle is on a level, paved surface. The distance viewed on the monitor is for reference only and may be different than the actual distance between the vehicle and displayed objects. LHA0437 WHA1531 1 2 3 4 Without Navigation System HOW TO READ THE DISPLAYED LINES Lines which indicate the vehicle clearance and distances to objects with reference to the bumper line A are displayed on the monitor. They are indicated as reference distances to objects. The lines and colors in the display indicate distances from the back bumper line A in the illustration. With Navigation System 1.5 ft (0.5 m) red 3 ft (1 m) yellow 7 ft (2 m) green 10 ft (3 m) green (models without Navigation System only) The vehicle clearance lines are wider than the actual clearance. Display screen, heater, air conditioner, audio and phone systems 4-9