Frigidaire fridge PRSC2222AF registering phantom button presses when door is closed

Fridge is changing the temperature settings on its own with the door closed. It will beep and then change the temperature setting by one degree, as if the button has been pressed. I can see the display light up through the door.

Unfortunately this unit is out of warranty even though it's not even 2 years old yet.

Has anyone else encountered this issue? Any ideas on what part to replace?