2014 Chevrolet Silverado 1500 seats problems

I was involved in a hit and run accident (I was stationary at the time at a dry, mutli-turn lane light) nov 15, 2016. After collision repairs to the visible damage to the vehicle, I found that the driver's side seat would not recline. Dealership worked on it and claimed to have fixed it. After the first attempt, it reclined but would not lock into place on the right side. Returned to dealership and required metal seat back frame replacement to fix the failure.

Have had the vehicle at piles chevy and dan cummins chevy multiple times along with tire discounters everyone says vehicle is in spec and the shaking at 70 to 75 MPH is normal however I've owned multiple vehicles non of them has ever had this issue I can't get the dealer to fix it they only say it's a known issue truck only has 57000 miles on it.