So there I was minding my own business making a left turn in a real busy area when I hear, but don't feel, a thump... I looked over towards the rear and saw a guy zipping away to the right from me. I pulled over a few seconds later out of traffic and of course found my left rear bumper plastic cover pushed in at and below the reflector, nothing cracked, but way more than just a simple dent. Happy Turkey Day weekend!
I went by the dealership for the 10K service and asked them to quote me a repair for the bumper. No prob for $500 through their body shop sub... So I had also started looking on line (and here) for fixes, and came across this link
on YouTube for fixing a dented plastic bumper on a Prius by heating with a hair dryer or heat gun and pushing it back into shape. Long story short, it worked great for me with a heat gun (hair dryer didn't help at all) and although not perfect, it's all pushed back into place with a couple of minor paint cracks and peeling.
Fortunately, the affected area was easily accessible behind the bumper, and with the heat applied mostly to the exterior about 6 inches away for 30 seconds at a time, I easily (but gently) pushed by hand (with glove and cloth) from the inside until the original shape was mostly regained.
I'm sorry that I didn't think of snapping a "before" photo (was too eager to get to the repair) but you can see the "after" photos with just a minor small dent that I can certainly live with... My damaged area had a few more "nooks and crannies" than what the Prius had in the video.
Just thought this would be helpful as we enter the slip and slide season if anyone gets unfortunately tagged like I did.