I am not sure what is going on with it. Try this: Take the Nyon off the bike and plug a micro usb phone charger into it over night or at least four hours. If the internal battery is getting low and causing it to shut off, this slould work. If it does not work, then put your original Intuvia back in place. If it shuts off as well, the problem is in the bike's system and should be brought back to the shop for warranty service. If the Intuvia does not shut off then the problem is in the Nyon. Nyon is supported by Bosch in Europe but not in North America. I have read where it is possible to change out a new battery in the Nyon but I have never had to do this. I suspect charging it back up fully will do the trick.