GNB — The ICE (internal combustion engine) icon appears in the display only when it's actually sending power to the wheels. If the ICE is running when the car is stopped, the icon does not appear, and in this case, as nash says, it's running for some other reason. Similarly, the battery arrows only appear if power is flowing in either direction between the battery and the wheels {via the electric motor-generators (MGs)}. An arrow from the battery to the wheels represents battery power supplementing ICE power; an arrow from the wheels to the battery represents regenerative braking charging the battery. [There's always electrical power shuttling between the two MGs and/or the battery, but it is not all shown in the simplified display. Indeed, the car can't work without electrical power flowing to one or other of the MGs.] If the ICE is running while you are stationary, your fuel consumption is infinite L/100 km — hence the maximum possible reading of 30 L/100 km shown under these circumstances.

Stan