I have a 2014 Grand Cherokee EcoDiesel. Yesterday I got a message saying “exhaust filter near full, safely drive at highway speeds to remedy” and my check engine light came on. So I took her out tonight and drove back on forth down the highway for a good hour at 70mph. I parked, Ran in the store and when I restarted it, it said “exhaust filter 100% full. Service required. See dealer.” It also flashed, “service electronic throttle control.” When I was driving home, it seemed to be revving really high before getting into the next gear and wouldn’t gain speed. WHAT in the WORLD is happening??