Transmission Gear Slipping problems of the 2008 Nissan Xterra

I purchased my Xterra back in October of 2008. It hasn't given me any significant problems until now. I have taken it to the same certified Nissan dealer/service center for just about all of the scheduled maintenance and so on. Even though this issue was known by Nissan, not once in all of my many visits to this service provider, was I warned or notified of this condition or the class action lawsuit that was in progress which has since been closed (October 2016). Also, being that my vehicle is just over the lawsuits agreed upon mileage allowed for any compensation from Nissan, I wouldn't qualify to receive anything at this point. So now, here I am with a vehicle, that I planned to keep for many more years, either having to basically junk it, or pay upwards of $7000 in repairs (according to the Nissan service center) to replace the transmission and radiator. I am between a rock and a hard place. I feel that I should be compensated in some way for this. If I were notified of this problem around the time that it first came to light, I would have at least had the chance to trade the vehicle in, instead of being stuck here with a vehicle that is essentially worthless. Not only could they have been considerate enough to notify me as 1 of many purchasers of a Nissan vehicle with this issue, but you would think that during service visits they would keep an eye out for an impending issue such as this. After research of this problem, I found that my vehicle was displaying symptoms of this condition arising months ago (the heat not remaining warm when in idol position). Also, I just had a oil change 2 weeks prior to having them check this problem out. I do know that this issue was already present then, because I had a couple of instances where it seemed that my transmission was slipping, and not only that, but the engine light was on.