I have a 2020 Touring with less than 4,000 miles that was purchased new in June of 2020. Until June 2021, we had no issues with the vehicle. The low mileage is primarily due to the pandemic and we had the first oil change and inspection done in early June of this year. The last week of June I drove 220 miles to take care of business related to the recent death of my father. The day after I arrived at my parents house I decided to take a quick 20 mile trip to run errands. Shortly after getting on the road the brake light came on despite the fact that the parking brake was not on. It was over 100 degrees outside so I thought the heat might been a factor. After I got on the freeway, the check engine, and Eyesight disabled light/message appeared followed by several other warning lights. The vehicle had been driving fine so I turned around at the first exit and headed back to the house. I called the nearest dealership to get advice and was told that the vehicle could still be driven as long as the CE light was not flashing (it wasn’t). I decided to let the car sit for a few hours and would then start it again to see what would happen. The next morning I went outside to start the Ascent the key fob was in my pocket but the driver’s door would not open. I then tried the lift gate with the same result. I took the emergency key out of the fob and used it to open the driver’s door and the alarm went off. I had to wait the 30 sec for it to stop. I was able to start the car and all the warning lights came on. Then I could not shift out of Park. I called the dealership and told them what happened and they told me to call roadside assistance to have it towed to them. A few hours later the tow truck arrived but the driver said he had a number of people stranded in the 110+ heat. I said they were more important and asked him to return first thing the next morning. The vehicle was towed to the dealer’s service dept the next morning. I also called my dealership 3.5 hours away to let them know what happened. The first call I get from the local dealer asks me if the vehicle was parked near an open field because they thought maybe a rodent chewed through some wires and it wouldn’t be under warranty. Mind you they had not found any damage, just wanted to say the fix might not be covered. I told them the vehicle was parked in a driveway next to a house in town and rodent damage was highly unlikely. The next call I received was to tell me that multiple codes came up but the only thing in common was to replace a “cluster”. They had ordered the part but it would take 4-5 days to receive it, they had no loaner for me. It is now the July 4th weekend and I really want to return home so I borrow my Dad’s car to make the return trip. One week after the vehicle is towed to the dealer they call me to tell me the cluster replacement did not resolve the issue and they had opened a case with Subaru and their engineers recommended replacing the BIU. They were sure this would resolve the issue after everything was reprogrammed. We called our dealership to update them and asked if they had a loaner for us and asked them to contact SOA customer care on our behalf. No loaner, but they contacted SOA for us. We were called by SOA about an hour later and we provided all the information they needed. Another week goes by and replacing the BIU did not fix the problem. SOA escalates our case and they offer us $50/day for up to 10 days for a rental. Unfortunately it was impossible to get any rental for this amount in our area. The service manager who has our Ascent then tells us they and SOA engineers are now confident that replacing a “harness” will resolve the issue but it will take another week at least. By the time we expect to hear from them it will be 30 days or more they have had our vehicle and we start talking about filling out our state’s lemon law application. Our dealer offers to give us $37k for a trade in of our Ascent if it’s fixed but we would need another $7k to get a 2021 Touring, but they have none on their lot and don’t expect another shipment for a month. I am not happy with their trade in price because I know the trade in value is actually more than what we payed in 2020. SOA customer care says they might be able to bridge the difference depending on the outcome with our vehicle. Well, yesterday, three days after not hearing from anyone, we call the service dept and they tell us the new harness did not fix the problem. We are now at day 30 of not having our Ascent returned to us. Tomorrow we are suppose to get another update. I am so disappointed by everyone at Subaru. We have not received the kind of treatment I would have expected, no loaner, no legitimate rental assistance, and our own dealership’s lack of response after we have purchased two Ascents from them. I don’t know if my issues are the same as others who have had the transmission harness replaced and have no idea what comes next, but getting another Subaru is looking to be unlikely after this experience. Any thoughts or advice are welcome.