To reset the Lus Tbelt of the strap you have to do the following
:
First start the truck.
Then with the truck on the booty of the board, so you pass from the ODOMA mode (ODOMETRO) to the mode of the belt mileage counter. Then always with the truck on hold the button and then turn it off to the flat.
When you do that, the number 15 will appear, when that happens presses as many times as necessary, until in the odometer you appear 0, when Eos pass again to place the button pressured the button and ready.
I hope I have helped and sorry for mistakes anything send me such a message I explain better