Random clock time

[phottomatt]

My clock is setting itself to random times on every start, I've tried auto set on and off. 2017 Yukon XL Denali.

 

[phottomatt]

Date is also changing, I was thinking maybe the internal battery that's used for retaining settings but the saved radio stations aren't effected.

 

[Fless]

Time to have the main battery load tested.

 

[phottomatt]

Time to have the main battery load tested.

I had thought about that also, in fact it died on me last summer after sitting for a few days and only opening and closing doors multiple times. Thank you

 

[91RS]

Battery weak and/or battery cables with high resistance. Extremely common (the negative cable and the short positive cable on top of the battery).

 

[phottomatt]

Negative battery cable was loose. Hopefully that solves it.

 

[BG1988]

My clock is setting itself to random times on every start, I've tried auto set on and off. 2017 Yukon XL Denali.

ground wire failure