I’m brand new on the XTerra forum. I have a 2015 with auto transmission. Probably one of the last XTerras made as I bought it new in December 2015. When I’m in Drive and push the button on the shift lever to lockout OD, the “O/D Off” display shows on the instrument panel, and the D(for Drive) changes to “4” on the panel. Lately it also displays a “M” just below the “4”. It’s at the lower right of the little window that displays the gear. The M also stays on if I put the shifter in 3, 2, or 1 but goes off if vehicle is in P, R, or N. Also the M disappears when I unlock the O/D lockout. Looking in the owners manual I cannot find out what the M means. Was wondering if anyone on this forum has any advice.