Denkeenan

We have a 2010 Dodge Journey with less than 20,000 miles. Car shuts down while driving - have had it back to dealer 3 times & they have not found the problem. We got it back last Friday & it worked well all weekend and yesterday, but today it shut off twice. Thank heaven at low speeds. I see others complaining of thius. Has anyone come up with an answer? The deal said they did several updates to the compuet and key modules, but it hasn't worked.