Jeep Cherokee “SVC 4WD”

My 2019 Jeep Cherokee has been showing a “SERVICE 4WD” on the dash for about a month now. (It came on entirely randomly one day, and i had only used the 4WD function one time this summer during heavy rain, otherwise since the wintertime). It used to blink on and off randomly, but now it’s on all the time. While I’m waiting for a service appointment, does anyone have any insight/history?