My advice... Try not to paint the Nitro, or dealerships in general, with a broad brush based on a negative experience with one dealership. Go to another dealership, but more importantly, go with a fresh and positive attitude because you will get back what you give!
No way to know all the facts here, and I'm not implying this is what happened, but like any business, if a customer allows their frustration to consume them to the point of being unreasonable or even abusive, that business does have the right to refuse to deal with the customer.
so here are a few thoughts and some advice for starting fresh:
: What you may be interpreting as "refusal" to fix a problem may actually be the common "Cannot duplicate", which will be stated as such on your paperwork. If the technician can't hear or see the problem when you take the car in, they cannot diagnose or repair what does not exist at that time.
: Make an appointment to take it in to a new dealership. Develop a good rapport with a service writer and always go to that service writer exclusively. When you arrive for your appointment, ask your service writer to have a technician meet you at the service writer's station to witness the problem in your presence. Take the technician for a ride with you to demonstrate the problem if needed, then have him/her drive the car back to the dealership to experience it personally.
If you cannot duplicate the problem at that time, don't leave your car, but now you will have a record of the visit and the symptoms will be documented. Before leaving, have your service writer add to the documentation that you will return with the car when the problem is present... then be prepared to stop what you're doing and drive straight to the dealership as soon as the symptoms recur to demonstrate them to the writer AND technician at that moment.
...Aside from your dealership woes, a search of the TSB's and posted complaints here doesn't show any widespread brake issues. What may be causing your problem could be as simple as a brake pad build-up on the rotors, so before you try to get it back in the shop, you might want to try to bed in your brakes and see if that solves the problem. This brake bedding procedure
is courtesy of Dave Zeckhausen, our resident brake specialist, as posted on one of our sister sites, 300Cforums.com.
Good luck, let us know how things work out...
I'd love to help you change your username!!