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Replace key fob battery

Silicon Desert

Active Member
Oct 1, 2018
Sparks Nevada
Both keys must be present in the car at the same time I think.
Both keys must be present in the car at the same time I think.
you might be right, but when this happened to me a few months ago, the message went away when I brought both fobs in the car (one at a time). OP, I didn't have to reset anything.


Supporting Member
Aug 22, 2019
Beyond the pale
And here I thought this was a new "feature" of the 2021.44.30 update in my M3 LR FSD

Perhaps the ability to detect a failing battery at 900 miles distance is new? 😀

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