Please refer to for detailed installation instructions. Close the map micro SD card cover on the radio faceplate and confirm that a map is appearing on the navigation screen.Insert the new map micro SD card into the slot and turn the engine ON.Push the map micro SD card to eject it from the slot.Towards the end of the update, your screen will go black for a. After a slight delay, the screen will prompt you to update the software. Select the apps button which will bring you to the dash. 2020-2021 Map Update DVD, CD, USB or SD card for your Lexus & Toyota Navigation System.