17 18 19 GM Cadillac Buick Human Machine Interface (HMI) Control Module 84364934

FOR SALE: Genuine GM Human Machine Interface (HMI) Control Module (84364934) OEM

Restore the functionality of your vehicle's infotainment system with this genuine OEM GM Human Machine Interface (HMI) Control Module. Part Number: 84364934.

This is the "brain" behind your car's main display screen (Cadillac CUE, Chevy MyLink, GMC IntelliLink). It is responsible for processing inputs from the touchscreen and buttons, and for running all the major infotainment functions, including Navigation (if equipped), Apple CarPlay/Android Auto, Bluetooth, and vehicle settings.

This unit is a direct replacement for a faulty or malfunctioning HMI module, which can cause issues like a blank screen, unresponsive touch, freezing, rebooting, or non-functional features.

Key Features:

• Genuine GM OEM Part: Ensures factory quality, compatibility, and reliable performance.

• Direct Replacement: Designed to replace an original module with the exact same part number.

• Controls Infotainment: The core computer for your vehicle's HMI system (NG-2.5).

Technical Specifications:

• Part Number: 84364934

• Interchangeable Part Numbers (for reference, confirm with dealer): 84331775, 84249384, 84251839

Compatibility:

• Fits various 2018+ GM vehicles, including but not limited to:

  • 2018 Chevrolet Malibu

  • 2018 Cadillac XT5

  • ...and potentially other GM models from the same era.

!!! CRUCIAL COMPATIBILITY & PROGRAMMING INFORMATION - MUST READ !!!

1. YOU MUST MATCH THE PART NUMBER: GM used many different HMI modules that look identical but have different hardware and software. To guarantee compatibility, you MUST confirm that your vehicle's original HMI module has the exact part number 84364934 printed on its label. DO NOT PURCHASE BASED ON YEAR/MODEL ALONE.

2. ⚠️ VIN PROGRAMMING IS REQUIRED! ⚠️ This is NOT a plug-and-play part.

   • After installation, this HMI module MUST be professionally programmed to your vehicle's specific Vehicle Identification Number (VIN) by an authorized GM dealership or a qualified automotive electronics specialist with the proper GM diagnostic tools (GDS2, SPS, etc.).

   • Failure to program this module will result in a non-functional unit, anti-theft lockout, or incorrect features. The vehicle may not start or the radio may not power on.

3. NOT FOR UPGRADES: This module is sold as a replacement for an identical, faulty part. It is not guaranteed to work as an "upgrade" (e.g., adding navigation to a non-nav vehicle) without extensive, specialized custom programming.

4. BUYER RESPONSIBILITY: It is the buyer's responsibility to confirm the part number matches exactly and to arrange for the necessary programming services before purchasing. We are not responsible for programming costs or issues arising from incompatibility or failed programming attempts.

Condition:

• This is a used, genuine OEM part in good working condition.

• It has been carefully removed from a salvage vehicle and visually inspected.

• All connectors are intact and pins are straight. The casing may show minor cosmetic signs of wear from handling.

• Please inspect all photos carefully as they represent the actual condition of the unit you will receive.

What's Included:

• One (1) GM HMI Control Module (Part #: 84364934)

PLEASE NOTE: No wiring harnesses, mounting brackets, touchscreen display, or programming services are included.