Page 211 in the manual discusses how to jump-start or trickle/charge the 12V batteries.
The high voltage pack isn’t what would be used for jump starting anyway. That pack runs ~450V.Off topic I guess but I couldn't resist after reading that page in the manual. But that's some sad irony. A vehicle with a 130kWh pack can't jump start a gas car's tiny battery? They really didn't think of that? How underpowered is the 12V bus?
I suppose it's just a matter of time before we have to tell folks "sorry I can't give you a jump..." to just give the on the fence or anti-EV crowd more ammunition..