Nissan X-Trail 2024 Owners Manual
7.20.5. How to change the vehicle set speed

The vehicle set speed can be adjusted.
To change to a faster cruising speed:
Push up and hold the <CANCEL> switch to <RES+> (1). The vehicle set speed increases in increments of 10 km/h or 5 MPH.
Push up the <CANCEL> switch to <RES+> (1), then quickly release it. Each time you do this, the vehicle set speed increases by 1 km/h (1 MPH).
To change to a slower cruising speed:
Push down the <CANCEL> switch to <SET-> (2), then quickly release it. The vehicle set speed decreases in increments of 10 km/h or 5 MPH.
Push down the <CANCEL> switch to <SET-> (2), then quickly release it. Each time you do this, the vehicle set speed decreases by 1 km/h (1 MPH).
Owners Manual