On 14 February, she left the port for a short voyage to Guacanayabo Bay, Cuba, and was back in Hampton Roads by 19 March. "Michigan" began a third cruise to Mexico on 16 April to support the United States occupation of Veracruz. She reached the city on 22 April and landed a battalion of Marines as part of the occupation force. The ship then patrolled the coast before departing for the United States on 20 June. She reached the Delaware Capes six days later. The normal peacetime routine of cruises off the east coast continued for the next three years. In December 1914, the ship's crew experimented with fire control directors to aid in gunlaying; the experimental directors produced significantly improved results in gunnery tests conducted in early 1915. In September 1916, "Michigan" conducted gunnery practice with the old monitor as a target, including night shooting drills on the 18th. On 21 September, during another round of shooting at "Miantomomoh", the shell in the left gun in "Michigan"s forward superfiring turret exploded. The gun was severed where it exited the turret and fragments from the shell damaged the forecastle deck and the superstructure. One man was injured by a piece of debris. "Michigan" returned to the Philadelphia Navy Yard for repairs, arriving there two days later.