2022 GMC Terrain Na

Vehicle started stalling back in February 2023, service engine light started coming on and then we started getting a message that the SD memory card had been removed and this message has stayed on constantly along with the service engine light. I made an appointment to get the recalls fixed with the dealership that we purchased it from which is 50 miles away but was told the parts for the fuel pump and child restraints were not available at that time. They looked at the memory sensor card but could not find anything wrong and was told if the error message came back up to call them back, I know more got home and the message came back up so I called them back and they set me up with another appointment the following week. This time because the message only comes up randomly and it did not come up while I was there I was told nothing could be done but to call back when the message comes back and as soon as I got home it came up so I called them back, they made another appointment for the following week and this time the message came on when the tech drove it so they took out the sensor card and cleaned it and everything around it and said everything looks fine now but it still comes on, but was told due to them not having the parts for the fuel pump that we should take it to our closest dealership. On 6/15/2023 we took it to our local dealership and I was told they would need to order parts and the eta on it was 4 days out, they said they would call me when the parts came in, I waited until 6/22/23 and no one ever called me back so I called to check and the parts were still not in but would check on it and call me back, no one ever called and I still have not heard from anyone. The last time we took it up there the vehicle stalled, we almost got hit from behind and it kept dying and would barely start, it is now setting under my carport, we are afraid to drive it and I still have not heard from anyone.This all started in February 2023 and it is June now.