2020 F350 loaded Lariat. Displayed “Driver Assist Fault, Service Required”, “Press OK”, and the clock changed from am/pm to the 24 hour display two different times AND the rear dome light came on and nothing I could do would turn it off. Replaced both OEM batteries with AGM batteries from Costco, no more error displays. We are on a vacation trip from Tennessee and all this happened in Nevada. Got Five years out of the Motor Craft batteries. Old picture.

 

Five years was a good run on batteries today.

 

Yup, 5 years out of my batteries as well. When not driven, put a battery tender on it. The passenger seat would inflate, and the final straw was when the steering assist fault came on. Changed the batteries and good to go.