general problems of the 2020 Chevrolet Traverse

I own a 2020 Chevrolet Traverse. At the time of the incident, I was driving at 55 mph and heard a very loud and unusual sound. The vehicle then began to uncontrollably shake so I pulled over to the right shoulder. A truck driver pulled over with me as he thought it was something in his truck that had malfunctioned due to the intensity of the sound that it produced. At the rear right wheel of my vehicle, the metal rim was broken vertically causing the rim to separate into two parts. The tire is completely intact. Thank god, the outermost part of the rim that holds the nuts did not break and stayed completely whole and solid letting me pull off to the right shoulder. To put it into perspective, the wheel was left in three different parts. The first part was the tire. The second part was the cylindrical shaped metal rim that stayed inside the tire. The third part, being the outermost part of the metal rim, can be envisioned as a simple cap. There were not any warning lights that became illuminated on my dash. My vehicle has not been previously repaired or diagnosed by any independent mechanic or dealer. The wheel, tire, and rim are the original fabricated parts that came with my vehicle.

Tires shimmering/bouncing going at highway speeds.

Tires:bridgestone alanza 255/65 r18 111t mts. At speeds @60-75 mph on ridged cemet highways this vehicle needs constant (slight) over steering. All other road there is no problem. With a side wind it's really pronounced. The write up personal at the dealer had heard of this issue but could net find any written info anywhere. The salesman had also heard of the problem on both the Traverse and equinox. Kind of surprises me when I hit a ridged section at high speed. My question is will this fair on a snowy michigan highway.