A heat exchange system includes a first thermal circuit, a second thermal circuit, and a controller. A first thermal circuit includes a first device, a first pump, and a first flow path and a second flow path configured to cool the first device. A second thermal circuit includes a second device, a second pump, and a third flow path and a fourth flow path configured to cool the second device. A controller is configured to switch, when the controller switches a flow path of the first thermal circuit from the first flow path to the second flow path and switches a flow path of the second thermal circuit from the fourth flow path to the third flow path, the fourth flow path to the third flow path and the first flow path to the second flow path.