People...geez, enough with this lemon law stuff over something like this. It's a TIRE issue. TIRES. The entire vehicle isn't defective. Nor is it a safety issue. It's an annoyance that CAN be corrected. Look, I've seen this same thing on LOTS of vehicles...especially today with consumers demanding more road feel and response, plus larger wheels and tires. The larger your wheels (and tires) the more sensitive it's going to be to imbalance or runout.
Do yourselves a HUGE favor: Find a specialty tire and wheel shop that does road force balancing as well as on-car balancing--and that takes pride in their work. Don't go to a discount chain, or even the dealer. Most of the time in the latter places you'll get someone who is barely competent at balancing and tires in general, and it will solve nothing. Go to the specialty shop. Spend $100 or $150. You'll either be amazed at the results or you'll find out one or more tires are unworkable and need to be replaced. In either case, THEN approach Chrysler about the tire replacement or reimbursement.
I know...I know...all you special ones will say that you shouldn't have to do this for a $xxxxx priced car. Get over that. It's mass produced. I've seen these kinds of issues on ALL mass produced vehicles...generally based on tire batches or production ramp-ups. Just get over the entitlement for a bit. Go find a really good place, get it fixed, then start enjoying your vehicle. You're going to waste a LOT of time, effort, and energy with all this lemon law stuff over something that most likely could be fixed by the right place in an hour or less.
If, on the off chance you do go to a really good place and they can't fix it either, then you have something to bring to the table with Chrysler.
Example: Here in Atlanta we have Butler Tire. They are a specialty wheel and tire house and they do all the stuff mentioned above. They have had NUMEROUS JGCs show up with the vibration issues mentioned here. They have been able to correct ALL of them or find the tires that needed to be replaced, and then corrected it. You guys are killing yourselves...seriously.