My front row vents dont blow cold or hot air but the back seats do. on 2010 Chevrolet Traverse

I checked the fuses but they seemed to be ok. I have had nothing but problems with the air conditioning and heating system in this car. What would cause thefront seat fans not tork but the back seats still work fine?

I'm having the same problem with my 2010 Chevrolet Traverse, were you able to find the problem?