I just drove 14 hours this weekend and I can confirm the voice controls are almost entirely useless. If you’re lucky it interprets you correctly and you have a menu to sift through on a screen to pick the right option. If you’re unlucky it just does something without any confirmation. The only success I’ve really had is “direct me to <large city here>” and “direct me home”. All other efforts lead me to swear and pull over.

Granted, I was a child map reader and navigator for my parents, this isn’t easy for humans either.