Thank you for the new year wish! I cannot say that there is guaranteed fix or a guaranteed issue with the grinding that you are experiencing as each vehicle concern is handled on a case by case basis. What I can do for you is set up a case with GM customer service and research this for you.
I just need your first and last name, address, phone number, VIN, mileage, and involved dealership name.
Please send this information privately to my inbox. I look forward to working with you.