Aaaah, yes. Yesterday I had my Tundra at the dealer for new tires and checking a bunch of things. At the end of the day it was done, and the front had moved in with moderate rain. I called home, 40 miles to the north and 1200' higher. I was told it had started to snow. The roads were warmish and bare all the way, but half-way home I crossed the rain-snow boundary. Within a few miles a message took over the forward dash telling me that proximity sensors were not working, then in another couple of miles the radar (collision, lane monitoring, speed) quit with a larger message. While I appreciate knowing when these systems are compromised, (they don't need to be, but that's a different issue), but I don't need a message that blots out most of the useful items on the centre dash. Sure I can push the Return button to clear them, but they are back within two seconds. Far preferable would be a single message, then change the LED behind the appropriate icon on the dash to red until the condition clears.
And the other issue? Any vehicle sold in the north should have (at least as an option) a "Hot Front End Package" which heats the lens/cover of the headlights and directionals, the proximity sensors, and the cover of the radar unit. And actually, why can't the computer notice that I'm going faster than 10mph and put the proximity sensors into suspended mode? They're only there for parking, I think.
Thinking about all the folks who believe their EV Scouts will be adventuring into all sorts of climates and terrains, there probably should be kill switches for all these sensors. While generally they are useful there are situations (like the above) where they verge on the dangerous. Tundra does have a kill for the proximity sensors (works for fields of tall weeds), it auto-resets each time the driving mode changes and that seems appropriate behaviour.
Summary:
Heated or self-cleaning surfaces for front facing lights and sensors, at least as a "northern option".
Parking Proximity sensor kill switch.
Parking Proximity sensor auto-off at speeds >10mph.
Single "disabled" warning, followed by icon colour change for disabled/compromised systems.
Radar sensor kill switch for weather or other situations where it is in appropriate, (with auto-reactivate).
I hope SM Designers and Engineers are reading this!
Systems need to work at the time of greatest need. Not just during perfect weather or during the test drive.