Per the manual:
Black gauges: Select ODO with the truck off, hold the trip button and turn the key to on. You will see a "countdown" and then a flashing of all 0's. Release and it's done.
White gauges: Same procedure as above but you select trip A instead of ODO.
That's not what I mean . If I have disconnected batteries will the maintenance required still keeep track of miles till oil change.