Had my 2011 LE for only a few weeks when I had “the” issue. Parked on an incline, stalled, etc etc. Had the update done, and have yet to stall out, but also have not been on an incline with less than 1/2 a tank of gas. HOWEVER, I have been on a couple of long distance (all highway) type trips. Used the cruise control most of the way, no major hills, not “weighed down” to any extent and have been getting all of 18 mpg. This seems WAY too low for highway driving. Wonder if the “fix” may have messed up something else in the software. Unfortunately, didn’t take any long trips before fix was done (since van was new when we came across the issue), so have no comparison data. People at dealership say I need to wait unit engine brakes in at about 20,000 miles. Only have about 7000 now. Somehow I still think something isn’t right. I know that may not help, but it is something to look out for.