Backup Camera Display Bracket on P V with AT

I think that's for IPA (intelligent parking assist)

 

According to the Nav manual (p. 198 of my electronic copy), "If the edge of the bumper displayed on the screen does not match the camera orientation confirmation lines, the camera may not be aligned correctly. Have the vehicle checked by your Toyota dealer."

For what it's worth, my lines are exactly at the edge of my bumper.

 

those pink lines are for the alignments relative to the side edge of your car. When you're reversing into a parking spot and the parking space lines are on the pink stripes you're actually driving on the space lines or close to it. Anything in between those pink lines you're gonna run over or hit.

 

Using them to guide you back is an interesting thing that I hadn't thought of before. I haven't tried it, though I suspect that it might be possible due to the huge fisheye of the lens.

That said, if there's a straight line leading all the way from some obstacle to the pink line, you WILL hit the obstacle if you back straight up along the line, because those lines are not on the corner of the bumpers, as the camera clearly shows. The camera doesn't actually show the entire width of the bumper, though it comes pretty darn close.

 

They're not symmetrical because the camera is on the left side of the license plate so the pink lines are off center.

 

If I use the lines as a guide and put one right on a parking spot line my wheel will be about 3 or 4 inches from the line, same on either side. I don't use the IPA but the lines are a nice guide when backing.