Recent content by SootShooter

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

    It’s usually a bad DEF quality sensor or a glitch in the tank level float. What you can try is a "hard reset" by disconnecting the batteries for 30 minutes, but how you really solve it is by having a dealer or a shop perform a "Reductant System Test" to clear the internal counters. These LMLs...
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