I saw two error while driving in slush. 1. Adaptive drive and stop sensors were blocked covered so saw a warning that the feature is not available. Maybe the sensors can be moved to better positions where slush doesn’t accumulate?Active air shutters faulted, likely just gunk getting stuck in them? I haven’t seen the error again.
The biggest thing I noticed was how much I need to compensate for its weight on icy corners! Otherwise it’s a beast climbing up a steep and icy hill.