How do you update 2002 infiniti QX4 navigation system?

To update the navigation system of a 2002 Infiniti QX4, you typically need to obtain the latest map data from a compatible source, such as a dealership or a navigation update service. Check if your system uses a CD or DVD for navigation; if so, you can purchase the latest disc. Additionally, some systems may allow updates via USB, so consult the owner’s manual for specifics. Always ensure your vehicle's battery is charged and follow the manufacturer's instructions during the update process.