I've read that one just needs to push the button that changes the trip meter to reset for the current MPG.

Right now it reads the miles left in the fuel tank.

This button resets to two trip meters, then goes to Econ.

I've held this button down on Econ, counting slowly to 10, with the motor running, and with just the ignition on.

Must be something else to this? This is a 2013 Jeep Wrangler Rubicon. THANKS!

Virgil B.