I think that kwackboy may be on the correct path. From what I understand, the hill hold feature only works when facing up a hill, bike must be in gear with the clutch lever pulled in. Tap the back brake to activate. Since I don't own a 1050, I can't confirm if this is the only method to activate the hill hold feature.
My theory is, if the hill hold feature was accidently activated, there should be a warning display to this effect on the gauges. To disprove this theory, try to cancel the the hill hold feature to see whether this is the case. Squeeze the front brake twice quicly to cancel the rear brake lock.