Mine has "become inactive" a couple times as well. If I turn it off, restart it seems to be ok. I think the best you can do is wait it out till monday when it will warm up and things should go back to normal. I have an E39 that has needed one rear bag and I was lax in doing it. It is also riding like your old p/u! That project has jumped to top of the list. This weather is beating up everything. Sick of it

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Dave S.
Northeast
2003 4.6is
2005 E53 4.4
2003 E39 Msport(a REAL ONE!)
1959 Fiat 600