Hi tral,
This is a "Pray for the best, prepare for the worst" scenario! When my 2012 Limited was new I added a set of PIAA '520' foglights to the bull-bar. At that time, or when I got the 4R I was having connectivity issues with ENTUNE's BT pairing with my 'Android' smart phone. I made an appt with the dealership where I bought the truck and went in to have it looked at. No sooner than I pulled in, I could see the SM and a tech pointing at my truck. I got out, gave the keys to the admin assistant and went to let reception know that I was there for an appoint; to which she replied... you can have a seat in the waiting room!
When the service mgr came out he said... "is there anything on that vehicle that shouldn't be..." I said, "what does that mean?" He said, "stuff like an aftermarket audio system or lighting systems...etc? I said, "the stereo is stock (which it still is to this day), but I added foglights for safety reasons! He replied, "Okay, have a seat and I'll have it checked out for ya!" When he came back (15 minutes later) he said, "I can't help you because the electrical system has been changed"! I told him that the electrical system is fine, it's just that the entune system is malfunctioning and I have to pull over to make phone calls.
Further more I reminded him that we had purchased my wife's Camery there, and I paid $40K (plus $3,000 tax) in cash for the 4Runner only one month earlier because it was a special order; due to the optional BP color, so I need you to help take care of this problem today or we're going to have a problem 'RIGHT HERE AND NOW'!... and we did; I fussed him out until some of the sales mgrs came out (who remembered me and happened to take a liking to me when we met about one month prior)! They all went in the back and talked and I went outside, too pissed-off to speak with a civil tone! When he came back he apologized for the "mix-up", and said he'll have his electronics specialist take care of it for me @N/C! Problem ended up being the worst version of entune (1.7.8) ever released! so they installed update vers 3.2.
Case-N-point... say you take the friendly 'Joe Bob', really nice guy approach and see where it's going. But if you begin to feel that things are starting to go south, then you let them know that you're not happy with their approach to a good customer! Maybe then it's time to be assertive and firm about your relationship with the dealership, and let them know that you ain't taken none of their bull ship! They may still knock you down, but they should know that you're willing to part company w/them as a result of this, ASAP if they treat you like you need them, and not the other way around; plenty of other Toyota dealerships in that cnty who would be 'thrilled' to welcome your auto repair needs and for you to go to them with complete confidence!
'Just my 0.00000000.2 cents; hope they make a serious effort to help you with this! 'Best to you',
rig