Bought my 20 Trailboss LT on February 15th. Last Tuesday leaving for work, my truck wouldn't come out of park. Had it towed to the local chevy dealer last wednesday and they found nothing. Happened Thursday, Friday and Saturday. Comes out of park after about 20 mins. After the first initial start. Dropped the truck off where I bought it on Sunday. They called me mo day afternoon and said they fixed it. Happened again Tuesday, so I brought it back and they have no clue whats going on. Said they are working with engineers to figure it out with no clue when ill have my truck back. Any help would be helpful on what my next step should be?