[McLovin]

Yes, it says “written” is not required to satisfy a “notice.”
But it does not say “steps reasonably calculated etc” satisfies a “WRITTEN notice.”
There’s a difference.
I don’t know anything about that statute, but that definition reads as a definition of a “notice.”
My guess elsewhere in that statute there is a separate definition of a “written notice.” (Like, a written notice may be a hard copy writing, an electronic mail, etc. But some kind of writing).
But it’s not going to say a written notice may be satisfied by giving an oral notice, or taking steps reasonably calculated to inform the other person” etc.
If that were the case, written notice provisions in contracts would be meaningless.