Yes, trail control uses the brakes to regulate speed. I prefer 4LO and low gears if I need to really go slow. To be honest, I haven't really found a use case where I felt more comfortable with it versus just using 4LO. But I suppose it also depends on the experience level of the driver
I can...
If you plan on jumping it, you'll find that the fronts will touch the top of the wheel well. Other than that, I haven't had any rubbing on mine after removing the crash bars.
Yes, there was an update for the lighting controller available on FDRS. I didn't get anything offered as an OTA, so not sure if that would have eventually been pushed or not. But the dealer installed it, along with a BMS (battery) update for a battery drain issue I was experiencing (also fixed...
Not exactly the same, I had the same error message on mine, but the blinkers worked. The dealer installed an update for the lighting module. Since then no issues.