Apologies if the answer is elsewhere in the forum, or buried in an owner's manual: I have a Prius v Five with "standard" Display Audio with Navigation and Entune. The voice of the (female) speaker enunciating the GPS turn-by-turn directions is too faint for my elderly ears. Twisting the speaker volume knob has no effect. Is there some way to increase the volume of the GPS instructions? Thanks very much!
Look for a icon that looks like a speaker on the Navigation screen. Touch the speaker icon and it will bring up another screen that will allow you to increase the navigation volume.
I can't speak for the 'v', but on the regular Prius, it is in lower left corner of the map display. It disappears when the radio display is up. Mine defaulted much too loud, not faint.