GMC Yukon 2022 Control GMC Part Number GM: 84988960 * Manufacturer: HARMAN * Unit Model: MEU3 GSM M27 * Supports: * Bluetooth (2.400–2.4835 GHz) * Wi-Fi (5725–5875 MHz) This unit is the Multimedia/Telematics Unit, used in some modern Chevrolet, GMC, Cadillac, and Buick cars. Its functions include: * Operating the screen and entertainment system. * Connecting via Bluetooth and Wi-Fi. * Telematics services like OnStar (in equipped cars). * Connecting the phone via Apple CarPlay and Android Auto Contact via private message