when the tank is getting quite low and you go up or down a steep hill, the light will flash on and then go off when level travel is resumed...... but not in the situation you describe - so as anchorman says, get it checked.
The fuel gauge is very inaccurate on the Soul. Mine stays at full for
ages - then plummets rapidly. I reckon that three quarter full is
actually half full in reality. Edited by: tempest