If any method other than the "RES+" or "SET-" button was used to cancel cruising speed and the function is still activated, the cruising speed will automatically resume when you press the RES+ or SET- button.

If you press the RES+ or SET- button, the speed will resume to the recently set speed. However, if vehicle speed drops below 5 mph (10 km/h), it will resume when there is a vehicle in front of your vehicle.