Ok,
I am not sure what happened but I believe I either hit a pot hole that was hidden by the standing water in the road or I hydroplaned or something but either way today coming home I found myself sideways on the highway and into the grass median. Car seemed ok and I was able to drive it back onto the road and to the curb to check it out. The drivers fender is cracked right by the side vent. The inner wheel well plastic is cracked behind the drivers tire and the left side of the rubber air dam got pulled loose on the drivers side. Other than a lot of mud all over the place that was it. I started driving slowly on the road and the no codes showed up indicating a loose or messed up wire on the wheel. There was no vibration in the steering wheel. It seemed to track ok straight down the road so other than the cracked plastic, I think it is ok. Fender looks pretty straight forward to pull off as well as the wheel well plastic. Here is the thing. I went onto Genes site and a fender is easy to find but there are some weird names for the rest of the plastic. I would post some pics but it is pouring outside. Basically though, the plastic directly behind the wheel needs to be replaced.

Utilizing this page from Genes site, I believe I need parts #1 the fender, and part #6 which is called rear rear left, whatever that means.

http://www.gmpartshouseusa.com/partl...layCatalogid=0
Hopefully these parts are still available.