A/C Blowing Hot Air

[nickwc72092]

Noticed an issue on the highway today: all of a sudden, my A/C started blowing hot air. I was driving back to Las Vegas from California (70-80 mph) when it started getting warmer in my car. I was low on gas (~30 miles to empty) when the issue started. I pulled over for gas and then when I turned the car back on, the Maintenance Required light started flashing. My car is due for an oil change in another 350 miles - not sure if that would be related to the issue? 

I turned up the temperature setting on the A/C so that it wouldn't be working too hard. Eventually, the cold air started coming back through. Once I got back to Las Vegas I ran into the store and when I came out 10 minutes later, the A/C was blowing hot air again. Hoping to have this issue resolved as the weather is already getting really warm.

[maseace]

Maybe the AC compressor, belt, or refrigerant is low in the system.