CARMEL, Calif. — For 2017, Nissan has refreshed the Pathfinder, its mid-sized three-row crossover utility vehicle. In fact, Nissan calls it a major redesign of the fourth generation model, introduced in 2013. The new design moves away from a rugged off-road look to a softer family-friendly style. Most noticeable is the new “V Motion” grille that, oddly, has more of a “U” shape, but is consistent with other newly restyled and released Nissan products.