5 Mph Max Speed Service Def System See Dealer. 2011 dodge 4500 service def system castfecol Message stayed up for about 15-20 minutes then completely went away Engineered to prevent further damage to your vehicle, the limp mode forces you to see a dealership because 5 mph isn't a safe speed to drive anywhere, city or highway.
SmartSign "Slow No Dust, 5 MPH Maximum" Speed Limit Sign from www.amazon.com
Chances is that your DEF Injector is caked with Urea and needs cleaned before replacing or checking the pump A CEL came on about a week ago along with the "5mph max speed in 200 miles service DEF system see dealer" message
SmartSign "Slow No Dust, 5 MPH Maximum" Speed Limit Sign
Also searching the net bring up others that confirm that also. I have no codes (outside of some left door panel or something other) Had the message Service Def System see dealer message pop up today while towing my camper home
Dodge Ram Message Service Def See Dealer. Your vehicle will require towing, see an authorized dealer for service. This can be caused by a variety of issues (covered in detail below) Service DEF System See Dealer Causes: 1
Ram 5 mph max service def system shopsbopqe. When the fluid runs low, your track activates a safety measure that lowers your maximum speed. Our final thoughts on resetting ''5mph Max, Service DEF System'' message