NHTSA Complaint #11697136 — 2023 CHEVROLET EQUINOX

My car has a vibration, I went to the dealer after one week of buying it, they first told me it has a learning transmission and after it learns how I drive it will go away. I later found out there is not such thing, the vibration at first was at slow speeds 30 t0 40 mph. I made a complaint to gm and the dealer, the dealer felt the vibration but could find what was the cause and said gm has to receive several complaints and considered this normal, I have taken it back for service a advised them gain of the ,problem and was told they could not fine the problem to wait until it get worse . I took it back over 6 times with no answers. My last time they said there was slippage in the torque converter but gm would not do anything and told me to wait until it gets worse, it now vibrates from 2 mph to 60 mph and makes a low growling noise, the dealer has felt the vibration every time I had them drive it, I new from the start if was in transmission it now will be three years with no correction, I know vibration can cause other problems which could loosen something else, I do not feal safe and will not drive it out of town. All I get from the dealer is they now know it is in the trans, but keeps telling me to bring it back when it gets worse. I cannot accept that, they keep using this as a excuse not to fix the problem. What else can I do?, I know other gm suv have the same problem but gm will not admit to the problem until they get more complaints. what