Hi there, sorry late to the discussion. Here is my history with this issue on my 2011 Cayenne Turbo. Since I’ve owned this Cayenne (going on 4 years now) every January when temps drop below 20 degrees (F) or so for 2 or more consecutive days I have this problem. First time it occurred the car dropped to what looked like the low setting on the left and terrain setting on the right, took it to Porsche dealer and they replaced the fuse that had blown and changed some parameters with voltage reading for the PASM. Now when it gets below around 25 (F) il‘ll get the yellow warning first and when temps drop and stay below 10 (F) the fuse blows and it pretty much stays in whatever setting level it was in before it blew. when this occurs I bring it into a heated garage and let the car thaw out, replace the fuse and it’s good again till next cold snap if left outside. Have to do this procedure maybe 2, 3 at the most, times per cold snap temps if car gets left outside for while. Don’t know it this will help you at all, but just know you are not alone with this issue. Side note, it’s very easy for shops to have you throw money at these cars and stealerships have a bad reputation but in this circumstance Porsche saved me thousands cause my independent was first looking at the compressor and a shock or 2. Thank goodness for forums like this with others sharing which saved me from going down the throwing money rabbit hole.