I am having the same issue with my Nissan Note E13 2022 model.just bought the car and the 12v battery was bad so we had to replace it and now it’s giving around 12-13 km/L. There is no error in car.It was also showing e-power systems service but that was probably due to extreme weather condition but now it’s okay.The major concern is average as the main decision to buy this car was due to it’s fuel economy. What do you suggest?
We have changed the engine oil , checked the coolant , service and cleaning of hybrid system inside car