A control device that includes an electronic control unit that is configured to perform neutral travel control that controls the transmission apparatus to enter a neutral state in which power is not transferred during rotation of the wheel, wherein the electronic control unit performs switching between an engaged neutral state in which a particular engagement device of the plurality of engagement devices is put in an engagement state and the transmission apparatus is put in a state in which power is not transferred and a released neutral state in which all of the plurality of engagement devices are put in a released state and the transmission apparatus is put in the state in which power is not transferred, based on at least a vehicle speed during the neutral travel control.

In engaging (connecting) a dog clutch by operating a synchromesh mechanism, when there occurs an uplock at the time when a first pressing force is caused to act on a hub sleeve, tooth tips of spline teeth of the hub sleeve contact with tooth tips of spline teeth of a synchronizer ring, and these spline teeth cannot be engaged. However, when a second pressing force is caused to act on the hub sleeve, the uplock is easy to be released. In addition, when torque from an engine is caused to act on the hub sleeve, a displacement is caused to occur in a rotation direction between the mutually contacting spline teeth. Thus, the uplock is reliably released.

A switch device includes three or more sensors configured to detect three or more respective measurement values with respect to an operation position of a switch; a memory; and a processor configured to determine a switching state of the switch by making a majority decision based on measurement levels of the three or more measurement values of the three or more sensors, and determine whether a failure has occurred for each of the three or more sensors. The processor compares a measurement value of one sensor among the three or more sensors with measurement values of other sensors other than the one sensor among the three or more sensors, and determines that the one sensor has failed in a case where half or more of the measurement values of the other sensors are not in a predetermined range of the measurement value of the one sensor.