So my 18 Renegade sport decided to throw a fit and flash service 4wd. The next day I had a grinding and knock when coming to a stop , happened 4 more times before I could get into the shop. They had it 4 days, said the rear differential broke and needed replacing. I picked up my Renegade last Friday and was told all was good, I drive the 40 miles home and than another 20 miles to work. All good so far. Saturday noon I fire up Renegade and service 4wd light is on again along with message in center of dash that 4wd not available. Call dealership, they can’t get to it until Tuesday, now I a bit worried as I have 160 miles to go before I can drop it off at the shop again.