what does the eco button on hyundai do
I have a 2011 Santa Fe 4 cyl, and the owners manual says that when the ECO light is on we are driving for economy. I've noticed that the only time the light of off is when the vehicle is in reverse, neutral, manual (or Sportronic..whatever Hyundai calls the manual shift mode), park, and idling at a traffic light for more than a few seconds. Even under hard acceleration (auto shifting at 5k RPM) the light stays on.