I had this problem too.LF81 wrote: ↑Tue Aug 25, 2020 12:04 pmI was having this same problem earlier this year. Since I am still under extended warranty, I took it to my dealership for service. They determined the battery needed replacement and recommended I change it asap.
I was skeptical but upon changing the battery, the problem is gone -- no more issue with clock / presets.
They wanted to replace the unit for $2200 parts plus labor..... but i was not savvy enough back then to just get it fixed.