I will say, somewhat to Marshall's defense, I was a bit confounded at first: on the reset of A, and what was displayed. To compound, the car had 117 mi. on it - but as dealers now do, I picked up with a full tank of gas. However, the trip meter wasn't reset. so my trip A and odometer all had the same mileage. It wasn't until my first fuel stop that I realized the 117 was rolled into the trip. LOL, for a moment I thought I was getting record breaking MPG!
Read the 'Information Display' section of the handbook beginning page 114 (at least in the pdf version). I also found the 'customization diagram' (p 125) confusing as hell at first. Mine is not set to automatically reset upon fueling, so I don't have to think about it. I do like the 'last 3 Trip A' info. I leave the B as is, or until I take my first long distance drive.