I agree with hdsmfrance - This is one of those things that it would be *so easy* to configure just as you want it if only Tesla would make much, much more use of the touch screen. All the required hardware is already in place. The extra safety cue the car could provide would be very useful especially in outside temperatures approaching freezing when patchy black ice can be so dangerous. The traction control system would be perfect to give the driver early warning of these conditions and allow him/her to modify their driving style accordingly. A few extra lines of code is all it would take.
I'd like a brief sound alert with the traction control icon flashing for a good 5 seconds and maybe some suitable text popping up somewhere... MW