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Does leaving the Eco button on damage the engine on a 2011 Equinox? on 2011 Chevrolet Equinox

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
I just left my Eco button on and now I'm getting told that it has ruined my cam shaft and they will not cover it under warranty.
(2) Answers
Try another dealer! Was your 'check engine' light on? Sounds to me like the 'eco' button isn't very ECOnomical. How many miles on it and did you have it serviced regularly at that dealer?