Apparently it varies between dealerships. I've had my Bolt in to Allen Gwynn Chevy in Glendale multiple times - Air conditioner blew up, firmware updates, took weeks for it the first time they had to ferret out the problem with the AC compressor motor... But they were super honest with me, and the work they did was decent. I could also call the service manager up and talk with him. One day he called me to tell me that they had been on the phone with GM all morning and everybody was still clueless as to what was wrong, sorry, and they're getting somebody else at GM to call them the next day to hash it out. Sucks, but at least I knew what was up and that they were doing everything they could.
Also, think of it this way - The dealer has replaced and repaired things on a Malibu maybe THOUSANDS of times SINCE FEBRUARY. They have guys that can do alternators in their sleep. On a Bolt, this should be no different except..no. wait.. it's completely different. Most of the techs probably haven't so much as popped the hood on one. Doing tie rod ends or replacing a window regulator is easy, that's fundamentally the same, but literally everything else is different.
However, if they're truly being dicks, then they need to turn it around. GM pays them to do warranty work, same as an owner would after the fact. On a darker note, there could be more sinister forces at work. Sales managers and service managers colluding to slow down and frustrate drivers of vehicles that don't make them tons of money. It's not inconceivable.
