Nissan X-Trail e-POWER 2023 Owners Manual
5.5.7.2. 2. Speed and Average speed (where fitted)
The Speed and Average speed mode shows the current vehicle speed and the average vehicle speed since the last reset. The Speed and Average speed mode have three modes of operation. You can switch between Since Reset, Since Start or Since Refuel by pushing the scroll dial (1).
Since Reset can be reset manually by using the scroll dial (1).
Since Start will be reset automatically each time the e-POWER system is started.
Since Refuel will be reset automatically each time when refuelling.
Owners Manual