99% of the time the dealer IS who dropped the ball multiple times and then stonewalls you forcing you to lemon law them, so totally get mad at the dealer, as you will have little to no contact with the manufacturer. Their job is to fix it and they didn't, multiple times. Raise hell. File official complaints with state regulators, tank reviews and speak to every manager you can until they try to throw you out. Make their lives hell if they give you any pushback whatsoever. Record everything, get any promises in writing.
My rule is ask nice first. Know your limits and rights. do not let them run the clock out on you or cost you money or loss of your lemon law case. Ask for a buyback, a nice loaner and compensation ( payments insurance whatever ). When you file lemon law 99% of the time the manufacturer tells the dealer to stop all work and start over. If you have time and they seem willing work with them. DO not do a trade, do not do a pullahead or anything other than a straight buyback or new truck swap. If you are with a captive lender it's as simple as a vin swap on the loan and some signature to moves the titles around. They CAN do it. the state/court will force them to, so why not now?
But if you get attitude, return in kind and escalate.