I have a new 2023 Tahoe Premier with 3300 miles on it. It is currently at dealership. Yesterday, we drove it to the store. Parked it for 15-20 minutes. Came out and started it. Lights all over the dash went on saying service engine and transmission, traction control unavailable and forward collision unavailable please service. Check engine light came on. We drove it home a half mile. Lights kept flashing. The engine was running really rough. Got on the Chevy app and made an appointment for this morning. Obviously, this morning, the car is running like a champ but the check engine light is still on. Already received the call that it is the injector. The part is backordered and no estimated date of delivery. The dealer offered us a loaner which we have to take. Also, we paid to extend the warranty to the 3 year mark since they only offer 1 year now. I think that they should give me the time back for the estimated month that I can't drive the car. Super disappointed that this is happening on a brand new car.