I drove my Chevy Silverado to ~10,575 feet before I encountered a large ice patch that seemed impassible (See the photo). It is quite long, maybe like 50 yards. One guy behind our group decided not to try his luck in his 4-runner.
However, on our way hiking down the road there was a Jeep Cherokee above the ice patch. Speaking to the driver, he indicated he needed to get to the Chalet so he used is 9000lb wench to pull him past the patch.
If you have a wench, the road is pretty clear after that ice patch and there isn‘t any deep snow (at least until the trailhead).
Photos (click for slideshow):