2014 Yukon Denali's fan or AC for front of vehicle isn't working

What is your question?

Lo and behold, our fan or AC for the front of our SUV isn't working properly. Middle and rear are working as they should, but the front isn't working hardly at all. When driving, air does seem to be passing through, but we can't hear the fan. My mother and father have had it 2 1/2 years at this point and have never had any problems like this before. Was working fine on the way to the Walmart, but when we got back in and started the vehicle, fan (or maybe just the AC in the front) was not and still is not working at all. We've tried starting the vehicle up via the key fob several times, Pressing the power button to the AC numerous times, turning off auto and manually adjusting the fan's speed, and turning the front defroster on and off (which also doesn't work), and we're completely stumped. Any help would be fantastic.

What makes this problem better or worse?

Driving, then again that might be the air flowing through the vents.

How long has your 2014 GMC Yukon had this problem?

Less than 3 hours