For the record, yes, you can disable passive entry from the 7" Uconnect. Tried it at the dealer.
Also, the 7" Uconnect has occasional lag, sits there for a second after you press a button, twiddling its thumbs.
Also, Toluca has terrible quality control -- the rearview mirror mount came with an inch+ wide bubble visible in the adhesive from the front of the car. Anyone even remotely interested in inspecting the car would have noticed it. I guess they don't care. If that's the quality of the right-up-in-your-face components, who knows what's going on under the hood or in the suspension.
I got my deposit back and I'm off to look for another brand.