If it's cold–well below freezing–I'll remote start to make sure the oil gets warmed up so the turbo gets properly lubed.
Otherwise, nope, get in and go.
I'm sure Toyota limited it to 10 MPH for safety. The Carista app only unlocks features that can be changed by a dealer's Techstream device. It can't change the software.
Two bits say that Toyota's legal department had input into the limit, and it's not adjustable.
Here's an odd one: right before Christmas, my wife and I went up the canyon to cut a Christmas tree. I parked in about a foot of snow. It felt fine pulling in with 4 Hi engaged.
When we had our tree loaded, we got in, and I quickly found we were stuck. I put it in low. Still stuck. Engaged the...
Nothing DOT other than proper lighting.
1334 pounds.
Here are the plans:
https://www.amazon.com/Building-Teardrop-Trailer-Crafting-Heirloom/dp/B083XVH9XQ/ref=tmm_pap_swatch_0