Jeep 2010 Commander - Owner Manual - Manual (Page 177)

This feature allows you to monitor when you are driving
in a fuel efficient manner, and it can be used to modify
driving habits in order to increase fuel economy. Distance To Empty (DTE)
Shows the estimated distance that can be traveled with
the fuel remaining in the tank. This estimated distance is
determined by a weighted average of the instantaneous
Fuel Saver Mode — On Fuel Saver Mode — Off
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UNDERSTANDING YOUR INSTRUMENT PANEL 177