In the Acura 2007 TL commerical showing the Navi with the lady talking and the guys on the phone with his wife when she hears another woman talking. In the bottom of the screen it says NAVI voice is automatically muted when using HFL.

However, the other day, Navi was giving me directions while on HFL and it didnt mute the navi.

I kind of like this even if its a bug that shouldnt occur.

 

I think my navi voice still plays while I'm still using the HFL. Someone else want to confirm. I'm unsure.

 

The Navi voice still plays when HFL is being used on the 07s.