Business ProfileforCapital Buick GMC

I took my 2017 Sierrra in for problems on 4 different occasions. The first 3, I got "We couldn't replicate the problem." On the fourth, I provided multiple video's to the service advisor and when I pulled into the service department, he even saw the check engine, check transmission, service 4wd, stabilitrac, etc...basically all the lights were going on and off. In addition to those, power steering would go out while driving, throttle would either barely go or rapidly accelerate and the doors would not unlock and vehicle would shift after being in park. This is by no means an exhaustive list.
The service advisor, Morgan ******** saw the problems. I made the mistake of saying if I cant fix it, then I might have to trade it. Can't pay $600 for a truck that doesn't work most of the time. Several days after dropping it off, Morgan called and said even with the check engine light on, the truck passes all computer checks. Over the next couple of weeks, he called and said "the #2 tech in GM has looked at it and he has no clue what is happening or how to fix it." He said they would call engineering to look at this. After engineering got involved, Morgan called and ask if I had plugged in any insurance devices or anything in the truck...which I had not. They were clueless as to the problem. He had no clue as what was causing the problem or how to fix it.
Capital had the car for 3 weeks! I tried to get a loaner, but they would not provide. I inquired to GM Customer care on 8/13. On 8/14 Customer Care rep said she would submit paperwork for a rental. On 8/17 CC rep called and said no rental would be approved since there was no repairs made. I asked what is next because the Morgan said they had no clue how to fix the problem. Customer Care said they would probably buy the Truck back since it's unsafe.
8/20 I called GM CC and she said the vehicle is ready to be picked up. No repairs made. No further action per the DMA (whoever that is). I asked for follow up calls from her boss. Nothing. I called Morgan @Capital that afternoon. No return phone call from him either.
I had no choice but to trade into something that is safe and operable. I traded with Capital because they knew the history and I assumed they would work to fix it (the advisor told me to trade across the street because they would not see the history).
I traded my Truck Saturday 8/22. On Tuesday 8/26 the Truck was taken for inspection (it failed) and on 8/27 it was offered for sale on the lot.
My question, if you have a Truck for 3 weeks and cant fix it.....how can it be fixed and inspected 2 days later? Did you intentionally lie to me to get my truck OR did you just pass the problem on to the next customer?? On the Carfax, there is no mention of the electrical problems. A friend inquired from the Capital and they insured him the truck had no mechanical or electrical issues.
You took off $2,700 from the average trade price that I got from your website, so you admit there was a problem by doing that. I'll admit the truck was dirty, but no accidents and a good cleaning the truck would look like new. You listed the truck for $33,848. $8,848 in profit...

Also, in order to get the rebates on the SUV I traded for, I had to use GM financial. The rate was horrible (given the credit score was above 730). The Finance Manager told us and even wrote it down on paper, do not refinance for 7 month. They said if we refinance before the 7 months, Capital Buick GMC would not come after us, rather GM financial would come after us. I have since learned from another dealership this is an illegal lending practice.