A display system configured to be installed in a straddled vehicle, the display system comprising: a display unit; and a communication unit configured to be communicably connectable to a portable terminal, wherein the display system is configured to: change information displayed on the display unit in response to a press operation performed by a rider on a first switch, wherein the first switch is used to operate the display unit; switch a display mode of the display unit from a first display mode to a second display mode or from the second display mode to the first display mode in response to a press operation performed by the rider on the first switch; display a meter display picture representing running information of the vehicle on the display unit in the first display mode; and display running information of the vehicle in a first display area of the display unit and display infotainment information transmitted from the portable terminal in a second display area of the display unit in the second display mode, and wherein the meter display picture is larger in area than the first display area, characterized by the display system being configured to: change information displayed on the display unit in response to a short press operation performed by a rider on the first switch, wherein the first switch is adapted to be provided in a handle switch of the straddled vehicle; switch a display mode of the display unit from the first display mode to the second display mode or from the second display mode to the first display mode in response to one long press operation performed by the rider on the first switch. a display unit; and a communication unit configured to be communicably connectable to a portable terminal, wherein the display system is configured to: change information displayed on the display unit in response to a press operation performed by a rider on a first switch, wherein the first switch is used to operate the display unit; switch a display mode of the display unit from a first display mode to a second display mode or from the second display mode to the first display mode in response to a press operation performed by the rider on the first switch; display a meter display picture representing running information of the vehicle on the display unit in the first display mode; and display running information of the vehicle in a first display area of the display unit and display infotainment information transmitted from the portable terminal in a second display area of the display unit in the second display mode, and wherein the meter display picture is larger in area than the first display area, characterized by the display system being configured to: change information displayed on the display unit in response to a short press operation performed by a rider on the first switch, wherein the first switch is adapted to be provided in a handle switch of the straddled vehicle; switch a display mode of the display unit from the first display mode to the second display mode or from the second display mode to the first display mode in response to one long press operation performed by the rider on the first switch. change information displayed on the display unit in response to a press operation performed by a rider on a first switch, wherein the first switch is used to operate the display unit; switch a display mode of the display unit from a first display mode to a second display mode or from the second display mode to the first display mode in response to a press operation performed by the rider on the first switch; display a meter display picture representing running information of the vehicle on the display unit in the first display mode; and display running information of the vehicle in a first display area of the display unit and display infotainment information transmitted from the portable terminal in a second display area of the display unit in the second display mode, and wherein the meter display picture is larger in area than the first display area, characterized by the display system being configured to: change information displayed on the display unit in response to a short press operation performed by a rider on the first switch, wherein the first switch is adapted to be provided in a handle switch of the straddled vehicle; switch a display mode of the display unit from the first display mode to the second display mode or from the second display mode to the first display mode in response to one long press operation performed by the rider on the first switch. change information displayed on the display unit in response to a short press operation performed by a rider on the first switch, wherein the first switch is adapted to be provided in a handle switch of the straddled vehicle; switch a display mode of the display unit from the first display mode to the second display mode or from the second display mode to the first display mode in response to one long press operation performed by the rider on the first switch.