VERY EASY, NO INSTALLATION REQUIRED, JUST PLUG AND PLAY! MORE INFORMATION, NO MORE GETTING LOST! ? SD Card Specifications - Size: 1.24 × 0.93 × 0.07 Inch - Color: Black - Material: Plastic + Metal - Package: 1pcs Car GPS Navigation SD Card - OEM#86775533 - Year: 2020-2023 - Connectivity: Plug and Play - Memory Capacity: 32GB - Read And Write Speed: 10 MB/S - Map Type: North America - Included Components: Card - Special Feature: Navigation For Vehicles - Screen Size: 13.4 inches ? SD Card Features & Functions - Updatable, large coverage, multiple functions - Pre-installed navigation map, real-time navigation ? Applicable Models - Compatible with Cadillac 2020-2023 XT6 - Compatible with GMC 2020-2022 Sieera 1500 2021 Sieera 1500HD 2020-2023 Sieera 2500HD 2020 Sieera 3500HD - Compatible with Chevrolet 2022 Silverado 1500LTD 2020-2022 Silverado 1500 2020-2023 Silverado 2500HD 2020-2023 Silverado 3500HD Mounting Instructions - Make sure your vehicle's ignition has been fully turned off for at least 10 minutes before starting the installation process so that the system power is fully depleted. - Eject the original map card with the vehicle power off. - Insert the new SD card. - Only after the map card is inserted into the slot can you turn on the vehicle's ignition switch and then turn on the infotainment/navigation system. - You will see a screen that says "Once lnitialized, this NAV SD Card can only be used for navigation in this vehicle". - Press the Confirm' button. - Successful, the navigation map will be displayed. Good After-sales Service - Your satisfaction is our greatest pursuit! After purchg this automotive navigation SD memory card, you will get perfect after-sale support. If you encounter any problems or need help in the process of using it, you can contact us. We will answer your questions and provide technical support. Instructions for Use - You can find the card slot by checking your vehicle manual or contacting your dealer. If after installation the navigation app says "This NAV map card is not valid for navigation". Please remove the SD card and retry the whole process, making sure that the card is correctly and securely fastened in the slot. North America Coverage - This car navigation SD card covers map information and navigation routes in North America. Whether you are traveling in the United States, Canada or Mexico, this navigation SD card can provide you with accurate, detailed and up-to-date map data including hotels, restaurants, gas stations, ATMs and more. Compatible Models - This car gps navigation SD cards is compatible with GMC 2020-2022 Sieera 1500, 2021 Sieera 1500HD, 2020-2023 Sieera 2500HD, compatible with Chevrolet 2022 Silverado 1500LTD, 2020-2022 Silverado 1500, 2020-2023 Silverado 2500HD, 2020-2023 Silverado 3500HD and is also compatible with Cadillac 2020-2023 XT6. Purchase Notice - Only a SD card for car in-dash navigation gps units without any other aids! You need to make sure you have a vehicle navigation system that is activated and equipped with an SD card slot. When purchg a navigation SD card, please check the OEM#86775533 to ensure SD fit and navigation accuracy.