I took my truck in for a Check Engine code for the...

I took my truck in for a Check Engine code for the transmission. The code reader listed the error codes as unsafe to drive so I stopped driving, for a week before they could get me in. When I made the appointment I listed I would be in need of a loaner. They told me my part wouldn t be in for at least 4 days since it s coming from Michigan, but couldn t give me a loaner because it wasn t covered under my Insurance and nobody was going to pay for it then I was told they didn t have any more loaners available and I d be called as soon as one came available or if there was an update on the part or my truck. I call for an update and I was told I could come get my truck and drive it till the part comes back. Mind you, there is an issue with the GMC Sierra transmission I ve had my truck taken in 3 separate times already, and the faults were for a: transmission temp sensor fault, and transmission control system malfunction. A week goes by and I received not one call from them. After my last phone call with them I was pretty much told to just wait till it gets there because they do not have a tracking number on the part and no way to tell when it would come in, and I m still without a vehicle because I m led to believe that there hasn t been a loaner available for over a week. Ridiculous customer service department, horrible with follow through, and seems to me like I could ve ordered a part myself through Marine Chevrolet and got it done 10x faster with better customer service