Unfortunately, the ecoRoute sends a the OFF command to the Nüvi 1390Tpro at each (automatic) Stop (eg at a red light).
This then gives me 30 seconds to interrupt the automatic shut down procedure and allow the unit turned on (the power is definitely not broken, it really is a "command" from the ecoRoute).
In Vienna's lots of traffic lights, which are more than 30 seconds red, because only helps
a) the start / stop automatic turn off (probably not very economical) - or
b) start the engine just before the end of the 30 seconds and back off (that would Workshop and battery dealer surely delight) - or
c) "do sports" at each stop, and long after the very front to the Nüvi - or
d) the ecoRoute HD throw - and I have a few weeks now done.
If someone owns a car without Start / Stop Automatic, that's for sure an interesting gimmick, in my case, it is rather unentspannend ...
One can only hope that Garmin rausbringt a software update!