Smell coming from A/C vents

[SMV]

Has anyone else had this problem? I have a 2018 diesel Equinox. Around 2500 miles, we noticed a really bad smell coming from the vents - like rotten coolant. I took it in for service (oil change) and asked them to check it. They said the wiper fluid had 'fermented' and they flushed the system - they told me, since it was a new car, they would do it as a one-time customer service but I should have had to pay (I am not happy with my dealer service at all for a lot of reasons and I will be going to a different Chevy place from now on - hopefully one that knows a little something about diesels!) The smell, which is intermittent but pretty strong, that comes from the vents now smells like wiper fluid or coolant - chemical but not rotten. I can't figure out why we are smelling wiper fluid...period! Any ideas?

 

[mnolmsted]

We have a 2018 Equinox gas that has the same issue though I describe the smell as "diaper genie" smell. It is more prevalent with the a/c running but it is always there. I've read in other forums it comes from the hoses that were manufactured with poor material I am taking it in for the third or fourth time next week. I've heard so many excuses but no one has every admitted to the issue with the hoses. Oh yes, we had a 2009 equinox that had nothing like this. I dont' know if Chevy personnel view any of these notes but I will be getting rid of this thing if they don't find the answer soon. Since it is inherent to the car it is covered by the warranty. I dont' have to put up with it much since it's my wifes car and we drive my Subaru whenever possible.