Does the 2012 GMC Acadia have a usb port?

The 2012 GMC Acadia does have a usb port. You will come into problems with the sound. This could be from the stereo's speakers or a phone that is connected to the vehicle. Whatever the source, You will need to have these issues solved quickly. If the problems are from the stereo's speakers, it could be static sounds, randomly turns off, a loose wire, or a blown fuse. If the problems are coming from the phone, it could be that the software won't update, the device will not sync with the vehicle, the phone's battery is almost dead, or an object is blocking the signal.