Restore Your 4×4 Capability Instantly
Is that frustrating “Service 4WD” light staring back at you from the dash of your truck? When your Sierra, Silverado, or Tahoe refuses to shift into four-wheel drive, it’s more than an inconvenienceโit’s a loss of the core capability you depend on. A faulty Transfer Case Control Module (TCCM) is often the culprit, leaving you stuck in two-wheel drive. This module is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN. Forget the expensive trip to the dealership for programming; this is a true plug-and-play fix that gets your rig back to full strength.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCCM is the likely cause. This pre-flashed unit is designed to permanently resolve them:
- “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster
- Inability to switch between 2WD, 4-High, and 4-Low
- Selector switch lights are inoperative or flashing
- Unusual grinding or clunking noises during attempted shifts
- Diagnostic Trouble Codes (DTCs) such as C0306, C0321, C0327, or C0398
By ordering this programmed transfer case control module, you are not just buying a part; you are buying a complete, ready-to-install solution that restores the function and reliability your GM truck was built for.
Features & Benefits
- โ VIN-Programmed for Your Truck: We flash the module with the latest GM software using your vehicle’s VIN. This ensures perfect communication with your truck’s other systems right out of the box.
- โ No Dealer Visit Required: Save hundreds of dollars and valuable time by skipping the dealership’s programming service. This part is ready for installation upon arrival.
- โ Restores Full 4WD Function: Regain complete control over your 4×4 system. Switch between drive modes smoothly and confidently, just like when your truck was new.
- โ Direct-Fit Replacement: Engineered to be a perfect match for the original module, guaranteeing a straightforward installation with no modifications needed. Compatible with part numbers 24261367, 12588096, 24239190, and more.
- โ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Take: As a technician, one of the biggest headaches with modern vehicle repair is component programming. Parts like the TCCM used to be a simple swap. Now, they require a dealer-level scan tool to “marry” them to the vehicle. This programmed transfer case control module completely eliminates that barrier. It empowers knowledgeable DIYers and independent shops to complete the repair efficiently, cutting out the dealership bottleneck and getting trucks back on the road or the job site where they belong.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your module until we receive the VIN, as the programming is specific to your vehicle.
Is installation difficult?
For someone with basic mechanical skills, installation is straightforward. The TCCM is typically located under the driver’s side of the dashboard. It involves disconnecting the battery, removing a few trim panels, and unplugging the electrical connectors from the old module to swap in the new one. No special programming tools are required.
What does the Transfer Case Control Module do?
The TCCM is the electronic brain of your four-wheel-drive system. It receives input from the driver’s selector switch and various vehicle sensors to command the transfer case motor, which physically shifts the vehicle in and out of 4WD.
Will this fix my “Service 4WD” light for good?
In the vast majority of cases where the TCCM has failed, this part is the permanent solution. The light indicates a fault in the 4×4 system, and a malfunctioning module is the most common point of failure. This programmed transfer case control module restores proper communication and function, resolving the root cause of the warning light.
How can I be sure this fits my vehicle?
This module fits a wide range of 2007-2014 GM trucks and SUVs, including the Silverado, Sierra, Suburban, Tahoe, and Yukon. Please refer to the detailed fitment list in the description. Providing your VIN for programming also serves as a final compatibility check on our end.