My SEL is currently in the shop to have the VCM2 install to my car. I have asked the dealer to check this missing low washer fluid warning and they were able to have it working. The feature, as I understood it, was there...The car computer didnt knew about it, so they did some kind of PCM reboot (probably the procedure listed above) and now I am told the warning now activates itself when the level of fluid gets to low.
I can now chuck this one off the bug list.
2012 Oxford White SEL Sedan
303A + winter package + Moonroof + 16'' OEM