A vehicular exterior mirror system comprises an exterior mirror assembly and an electronic control system. The exterior mirror assembly has a fixed support adapted to be mounted to the side of the vehicle and has a mirror housing supported by a support arm and movable along the support arm from a first position proximate to the fixed support to a second position proximate to a distal end of the support arm. The exterior mirror assembly comprises a first electrically powered mechanism for pivoting the support arm about the fixed support, a second electrically powered mechanism for moving the mirror housing along the support arm and a third electrically powered mechanism operable to adjust a mirror unit of the mirror housing to a desired adjusted position. The electronic control system is operable by the driver of the vehicle to control operation of at least the first electrically powered mechanism independent of operation of the second electrically powered mechanism.