Car making a noise when AC is on

Hi this is Dusty, I'm one of the auto experts on RepairPal's Car Genius team! Excellent job keeping the Equinox happy with a fresh oil change! Given that noise is only present when the button is pressed, the source is highly likely to be your A/C compressor. Depending on the vehicle, pressing that button either sends a signal to a module which commands the compressor to be turned on, or engages a relay which turns the compressor on. Either way you'll want to have it diagnosed professionally, repairs to the air condition system require special equipment and training. The refrigerant will need to be recovered and recycled responsibly to avoid any negative impact on the environment. If you have any other questions or would like to help with finding a RepairPal Certified shop in your area, give us a call! 877-913-1554