Restore Your Truckโs Four-Wheel Drive Power
Is that frustrating โService 4WDโ light glaring at you from the dash? Are you unable to switch between drive modes, or hearing strange noises from your transfer case? You rely on your GM truck to be tough and capable, and a faulty transfer case control module (TCCM) can sideline your vehicle when you need it most. This isn’t just an inconvenience; it’s a compromise on the capability and safety you depend on. Put an end to the guesswork and expensive dealership quotes. This is the definitive, ready-to-install solution to get your truck back to peak performance.
Common Symptoms & Your Direct-Fit Solution
A failing TCCM can manifest in several ways, often triggering Diagnostic Trouble Codes (DTCs) like C0306, C0327, or C0569. If you’re experiencing any of the following, this module is the fix you need:
- Inability to shift into or out of 4WD High or 4WD Low
- The โService 4WDโ message is constantly on
- Selector switch lights don’t illuminate or flash without engaging
- Unusual grinding or binding when attempting to engage the 4WD system
Our solution is a high-quality TCCM that arrives at your door completely programmed to your vehicle’s specific VIN. We install the latest, most stable software from GM, which corrects many of the glitches and flaws present in the original factory units. This is a true plug-and-play fix, designed to make your repair simple and effective. By purchasing this programmed GM transfer case control module, you are bypassing the most expensive and time-consuming part of the job: dealership programming.
Features & Benefits
- โ VIN-Programmed for Your Truck: This module arrives ready for installation, saving you a costly trip to the dealer for programming. It’s a true plug-and-play component.
- โ Loaded with Latest GM Software: We flash the unit with the most current updates, ensuring maximum reliability and performance that often exceeds the original part.
- โ Restores Full 4WD Functionality: Regain complete and reliable control over your truck’s drivetrain. Switch between 2WD, 4HI, and 4LO with confidence.
- โ Guaranteed Compatibility: This module is a direct replacement for a wide range of original part numbers, ensuring a perfect fit and seamless communication with your vehicle’s systems.
- โ Built for Durability: Engineered to withstand the demanding conditions your truck operates in, providing a long-lasting solution to common TCCM failures.
- โ This unit is backed by our one-year replacement warranty.
From the Mechanic’s Bench:
“Over 20 years, I’ve seen hundreds of these GMT900-platform trucks with 4WD issues. The root cause is often the original TCCM. The factory units were prone to failure from cold solder joints and internal component breakdown. Just replacing the module isn’t enough; the software is key. An unprogrammed module is just a paperweight. By providing a programmed GM transfer case control module with updated software, we’re not just replacing a partโwe’re providing a comprehensive, modern fix that addresses the original design’s weak points. This is the repair I’d do on my own truck.”
Frequently Asked Questions
Do I need to take this part to the dealership for programming?
Absolutely not. The main benefit of our service is that this module comes 100% pre-programmed for your specific vehicle using the VIN you provide. This makes the installation a simple plug-and-play process, saving you time and hundreds of dollars in dealer fees.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information, as it is essential for the programming process.
What happens if I install it without providing a VIN?
An unprogrammed module will not function. The TCCM needs to communicate with your truck’s other computers (like the ECU and BCM), and this is only possible when it is flashed with the correct software for your specific vehicle configuration. We will not ship the part until we have your VIN to program it.
Is this the right part for my truck?
This programmed GM transfer case control module fits a wide range of GM trucks and SUVs from 2007-2014, including the Silverado, Sierra, Tahoe, Yukon, and more. Please review the detailed fitment list on this page and cross-reference your original part number with the compatible numbers listed to ensure a perfect match.
What tools are needed for installation?
Installation is straightforward for a DIYer with basic mechanical skills. The TCCM is typically located under the driver’s side dashboard. You will generally only need a basic socket set and possibly a trim removal tool to access and replace the module. The entire process usually takes less than an hour.