Recent content by BarnFindHank

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    How to fix the "Speed Limited to 55 MPH" message when my DEF tank is full?

    I’m in the middle of a road trip and my 2014 just told me I’ll be limited to 55 MPH in 50 miles because of a DEF issue, but the tank is full! What is causing this false reading? How do I reset the computer so I don't get stranded in limp mode?
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