Yes, it was and still is, on
some Teslas.
Going into the lower left hand '
Controls' tab, and selecting '
Driving', it may be all AWD "D" owners who now see '
Slip Start' in the upper left. The option for an on/off slider going to '
Traction Control Off' used to be where this new (very) low-speed feature was added.
S85, P85, P85+, or possibly all RWD Teslas have the option for "Traction Control Off" (unless it was updated out?). In snow, with TC-Off, it is pretty easy to tell the front Stability Control remains engaged, while the rear slides freely. With TC-on, the car slows down, and allows less throttle to dig into the snow at an angle (keeping it on the arc of a curve, instead).
Jason C., of Road & Track, made reference to the P85D TC, saying "I turn the wheel and the computer pulls the plug",when he went to Lyme Rock,
Climate Change: 2014 Tesla Model S P85D
Traction Control systems can look for other things than whether wheels are all rotating at the same speed. In valet mode, for instance, there is no slip before the hot-shoe Valet looses power. While that might be a good thing, it is possible for some of the same limits to be triggered by the position of the steering wheel, speed, a g-sensor, or something else, possibly well before the owner loses grip. This is where making a safe car, and a performance car, can mean different things. Drive modes can make everyone happy. :love: