I took my S 60 out to a snowy area for the first time yesterday(Yosemite). Snow chains were required so I put them on. I noticed a few strange things while out there: 1. Traction control kept getting triggered, apparently just because of the chains. 2. Worse, I tried disabling it because it was clearly functioning incorrectly, and after disabling, it would stay off for about 1 second and then toggle itself back on, even when parked. Oddly, I found the button was just labeled "Traction Control" instead of "Slip Start". Maybe a bug with the 2.50.201 update I got this last week? 3. The front right tire pressure sensor showed low pressure. This happened roughly halfway through the day. As we left the park the reported value slowly rose from 37 up to 40 and eventually the warning cleared entirely as we got back into warmer weather. I'm not sure whether this would indicate a faulty sensor or be expected due to the temperature change(PV=nrT). The car is only ~2 weeks old, so I wouldn't expect an actual issue with tire pressure. Anyone else have experience with any of these or thoughts on what I can do in the future to avoid these issues?