Garmin GPSMAP65s routing issues

[kot7OpHyd]

So, maybe it just will not work with this card or with other maps installed.

I also use a GPSMAP 65s. Even today I went for a walk with it and it showed the "turn warnings" with the tones.

• The turn warnings are not always shown at the turn or right before the turn. It can show them 50-150m before the turn. It seems to have a mind of its own. By this, what I mean to say is, don't expect that it'll notify you when the turn arrives - it will notify you well before the turn arrives.
• The volume of the turn warnings tones is very low, and it could easily be missed in traffic noise.
• I use Thorsten Kukuk's OSM maps (which are routable, and have house numbers for this country). Any routable map should work.
• I have several maps installed in the Micro SD card that show up under "Setup Map" -> "Select Map", but only one of them is enabled - the one I am using. All other maps are disabled.
• In Setup->Routing, I have Activity = Pedestrian Walking, Calculation Method = Minimize Distance, Lock on Road = No, Avoidance Setup = Ferries, Off Route Recalculation = Off. The "lock on road" appears to have no effect on the turn warnings, but it makes the position triangle sticky (it doesn't move about or change heading as you move a little or turn the GPS receiver around). The turn warnings are shown regardless.
• Note that it is the device that generates the route (and where to show the turn warnings), hence the requirement of a map that supports routing. I don't use any Garmin apps. The maps were copied to a Micro SD card used in the device directly (in Garmin/ directory), and waypoints via GPX files (in Garmin/GPX/ directory) on the card.

For any other readers reading this in the future, the above is specific to GPSMAP 65s which does not support FIT files and doesn't support any standard way of specifying turn information using GPX files (there doesn't appear to be any standard way). If you have newer Garmin devices that do support courses, Garmin has this page for you:

Thorsten Kukuk's maps are good and have routing support if you like that style and there's a map available for your location. BBBike has a generator for whatever region you are interested in, and in many styles, and the Garmin formats there have routing support. For an English map of Japan, try:

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[Andy]

With the Car Profile enabled, create a new profile, after creating it,
change the Routing method in the settings > activity (car), change it to Hiking.
Give the profile a name, e.g. Hiking 1,
after mapping the route, check if the audio information works.

Thanks for this suggestion, this worked!
Although when I switched the GPSMAP off and tried again the next day I got the same problem: no sounds and no recalculation when routing.

But after some experimenting I realized that if I load any profile the routing then works fine, with sounds and recalculation.
So the workaround is that I'd first have to load a profile every time I switch it on, if I want to use a route.
Not a big deal, but I'm wondering whether to send this one back to Garmin too or just live with it....
It's definitely a bug or a defect of some kind, but I know now how to get it to work.

Thank you everyone for your help!