2017 Prius Prime Rear Bumper damage - How to fix by myself?

pick up a bottle of touch up paint at a dealership. it comes with brush in cap

 

Just to add, touch-up paint is only for the painted part. The black part of the bumper is not painted. There is no touch-up paint that will fix that part. You will have to paint the entire black part of the bumper with black or whatever color you wish.

In my experience, any attempt to hide the imperfection with touch-up paint always ended up making it look worse. Leave it to professional if you want it done right. Or just forget about the dings and gouges.

 

The King has spoken; and he is correct. Even OEM touch-up paint from the dealer will actually make it look worse. You won't be able to get that "mirror" finish - so the touch-up painted area will look like a 'scab' and will draw your eyes to the imperfection.
The black area may be lightly sanded down, NOT enough to loose the grain in the plastic. They make black matted paint for black plastic trim, again you will lose the shiny mirror finish. The proper way of fixing this is to refinish the entire bumper.

IMHO, I'd leave it alone. Take a sharp razor blade and trim-off the plastic strains sticking out; then seal it with some car wax. DO NOT wax the black trim, armor all or black-trim cleaner only. Now you've got an excuse to, not wash the car as often