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I looked at that screen 5 yrs ago. I just looked at it again. Shows the temp. What does your dash display show when it's set for outside temp mode? There is a blank screen, just before the setting of outside temp.
Looks like your outside temperature sensor is having a problem. As I recall, the sensor is in the vicinity of the front bumper (down low). Have you had recent collision or mechanical repair work in that vicinity of your car?
My pleasure - glad you were able to resolve your issue. Thanks for "paying it forward" by coming back with the pic and description of how you fixed it.