'Reviving this post so I do not need to create another thread, and in hopes I can get some input. I just bought a used Terrain SLE 2.4., and I want to disable ECO mode but the ECO button was completely stuck. Possibly due to spilled coffee as well. I was able to remove the cap and clean it out a little bit, and get it to move. Although, I am unable to turn it off. Does this require me to go to the dealer to get it fixed? I wanted to try and avoid that but that is my last resort. Any help is appreciated.