Automatic Transmission Control Module problems of the 2023 GMC Sierra 2500

On xxx, I was towing my camper to copper center, alaska from palmer, alaska when my truck experienced a full transmission shut down which put the truck into "reduced power mode". We descending down the road right next to victory bible camp (64741 victory rd, sutton-alpine, ak 99674) when the exhaust break turned off and the truck decreased power and the check engine light illuminated. The diagnostic that was produced by onstar revealed 3 different codes. ( p0700 tcm, p0747 pressure control solenoid a is stuck in the "on" position, c116b faulty brake pad wear sensor. ) I called GMC of palmer and GMC onstar advisor, both informed me that the truck needed to be towed. My safety concerns is this. . . . I had minimum cell phone signal and not a gas station or service station within miles. I was on the side of the alaska highway 1 which is a major thoroughfare for traffic going to and from [xxx]. Thankfully there were a few kind folks that pulled over to offer assistance. My truck is a 2023 GMC Sierra 2500hd with only 26,262 miles on it. I purchased this vehicle xxx. (it still has the temporary tags on it. ) if had been in a different part of alaska when this transmission failed to function properly then we could be talking about a life or death situation. Especially, if my child was with me. I was hauling my camper that weighed atmost, 7,000 pounds. This is less than 40% of the trucks ability. I feel that this could put someone into a dire situation had they not had the experience with emergency situations like I have had. (prior military service). I have also filed a complaint with GMC motors. Case# xxx. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).