After 35,000 miles, the tires start to slip on slight snow. My wife was driving the Equinox and it started to slide down and hit a car. The Equinox would not stop. Few days ago, my wife slipped again in the same school area where she slipped back in March. I went home and test drove the Equinox. The car slipped and I ended up in the middle of the intersection. I went back home and took the Explorer and went back at the same intersection and the Explorer stopped just fine. Tires are great during summer time, but now I am not sure about winter time.