How do I update the navigation in a 2014 Toyota Sienna?

To update the navigation system in the 2014 Tyota Sienna You will need to install the map update toolbox on Your computer and download the updates to a flash drive. One You have that done You can follow the steps to update the map here -You will start out at log into Map Update Toolbox. A button will appear on the left side menu. If an update is NOT currently available, the button will be labeled "Device." If an update is available, the button will be labeled, "Updates." You can then select UPDATES, if available. (VERY IMPORTANT: Be sure to read the entire "PLEASE NOTE" section before beginning this process.) Select INSTALL to begin the process. This is the way You can do it Yourself but if You are not technologically inclined You can take it to the dealership and they will install new map updates for a fee.