GMC 84578113 Telematics Communication Control Module

( Part Type: Control Module ), ( Vintage Part: No ), ( Manufacturer Warranty: 1 Month ), ( Country Of Origin: United States ), ( Manufacturer Part Number: 84578113 )

Review GMC Oem Telematics Communication Control Module fits TERRAIN 2019–2021

The GMC Terrain Communication Control Module, part number 84578113, is a sophisticated telematics component designed specifically for select 2019-2021 GMC Terrain models. This state-of-the-art module is an essential part of the OnStar and GMC connected services, enabling various features that enhance the driving experience, safety, and connectivity of your vehicle.

The control module facilitates seamless communication between your vehicle and OnStar's network, ensuring reliable and efficient connectivity. It supports a wide range of features, including Automatic Crash Response, Emergency Services, Roadside Assistance, Stolen Vehicle Assistance, and Remote Key Fob Services.

Moreover, this component plays a crucial role in the integration of various in-vehicle technologies, such as the 4G LTE Wi-Fi hotspot, Bluetooth connectivity, and voice-activated navigation. By enabling these features, you can enjoy a more connected and convenient driving experience, with the ability to make hands-free calls, stream music, and access real-time traffic information on the go.

Additionally, the GMC Terrain Communication Control Module offers remote capabilities, allowing you to start your engine, lock and unlock your doors, and check vital vehicle information using the OnStar app on your smartphone. This added convenience can save you time and provide peace of mind, whether you're at home, work, or on the go.

The control module is designed with a robust and reliable construction to ensure optimal performance in various driving conditions. It is engineered to work seamlessly with other vehicle systems and meets stringent automotive industry standards for safety and reliability.

By installing the GMC Terrain Communication Control Module in your 2019-2021 GMC Terrain, you'll not only enhance your driving experience but also add an extra layer of safety and convenience to your daily commute. This advanced telematics component is an essential investment for any GMC Terrain owner, providing peace of mind, connectivity, and a more enjoyable driving experience.

The GMC Terrain Telematics Communication Control Module (part number 84578113) is an essential component of the vehicle's telematics system. This module enables various features such as OnStar services, remote key fob functions, and vehicle diagnostics. Here are some pros and cons of buying this module.

1. Enhanced Convenience: This module offers several convenient features such as remote start, remote door lock/unlock, and vehicle diagnostics, which can be accessed through the OnStar app or the OnStar button in the vehicle.

2. Improved Safety: The OnStar system included with this module offers various safety features such as automatic crash response, emergency services, and roadside assistance.

3. Vehicle Diagnostics: The module provides access to vehicle diagnostics, which can help identify and solve potential issues before they become major problems.

4. Remote Engine Start: The remote start feature is particularly useful in extreme weather conditions, allowing the driver to heat or cool the vehicle before entering.

1. Cost: The GMC Terrain Telematics Communication Control Module can be expensive to purchase and install, especially if the vehicle is not under warranty.

2. Dependence on Cellular Connection: The OnStar system relies on a cellular connection, which may not be available in all areas or may have limited coverage. This could limit the functionality of some features.

3. Subscription Fees: While some OnStar features are complimentary for a certain period, others require a subscription fee.

4. Complex Installation: Installing the module may require professional assistance, which could add to the overall cost.

The GMC Terrain Telematics Communication Control Module offers several convenient and safety features that can enhance the driving experience. However, the high cost, dependence on cellular connection, and subscription fees are significant drawbacks. Ultimately, the decision to purchase this module depends on individual preferences and priorities. If the convenience and safety features outweigh the costs, then it could be a worthwhile investment. However, if these features are not a priority, then it may be better to forego the expense.

part # 84578113 prices

• $40.00-$100.00

specifications wiringwench:

• for models: Terrain
• for makes: Gmc
• for years: 2019-2021
• part type: Control Module
• vintage part: No
• manufacturer warranty: 1 Month
• country of origin: United States
• manufacturer part number: 84578113

general wiringwench:

• condition: Used
• Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > Other Starters, Alternators, ECUs Wiring

offer wiringwench:

• quantity: 1
• availability: In Stock
• started: December 30, 2025
• sold: 0
• options: Ship-to-home

shipping wiringwench:

• carrier: USPS
• type: Calculated
• class: Standard
• transit: 5-9 Days
• cost: $0.00
• service: USPS Ground Advantage

payments wiringwench:

• other
• credit card: Discover
• wallet: Apple-pay

seller wiringwench:

• # reviews: 1476
• rating: 99.7%

returns wiringwench:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

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