Regain Control of Your 4×4 System
If you’re staring at that frustrating “Service 4WD” light on your 2007-2013 Silverado 1500’s dash, you’re not alone. When your truck refuses to shift into four-wheel drive, or worse, gets stuck in it, the Transfer Case Control Module (TCCM) is the most common point of failure. This isn’t just an inconvenience; it compromises your truck’s ability to handle tough terrain, slick roads, or heavy workloads. This module is the brain of your 4×4 system, and when it fails, it leaves your capable truck feeling powerless.
We offer a direct, reliable solution. This TCCM, compatible with part number 24261367 and others, is the definitive fix for these common issues. The best part? We handle the programming for you. Simply provide your vehicle’s VIN at checkout, and our technicians will flash the module with the latest GM software specific to your truck. It arrives at your door ready for a straightforward installation, saving you a costly and time-consuming trip to the dealership.
From the Diagnostic Bay
I remember a customer bringing in his ’11 Sierra, convinced he needed a new transfer case. The selector switch lights were out, and it was stuck in 2WD. He’d been quoted over two thousand dollars elsewhere. I hooked up my scan tool and saw a classic U0102 code – Lost Communication with TCCM. Before condemning the whole transfer case, we checked the module. After swapping in a pre-programmed TCCM like this one, a 15-minute job, all functions were restored. He drove away with a fully functional 4×4 for a fraction of the cost. It’s almost always this module, not the expensive mechanical parts.
Is Your Truck Showing These 4WD Warning Signs?
A failing TCCM can manifest in several ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster.
- ✔ Inability to switch between 2WD, 4HI, Auto, or 4LO modes.
- ✔ The 4×4 selector switch lights are off or flash intermittently.
- ✔ The vehicle is stuck in a single drive mode (e.g., stuck in 4HI).
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0306, C0321, C0327, C0374, or U0102.
A Straightforward Guide to Installation
You don’t need to be a master mechanic to replace this part. With basic hand tools, you can have your 4×4 system working again. It’s located on the driver’s side, up under the dashboard near the steering column.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the Module: On most GM trucks of this era, the TCCM is mounted to a bracket to the left of the steering column, behind the lower dash panel. You may need to remove this panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have release tabs that need to be pressed. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed TCCM into place and securely reconnect the electrical harnesses. You should hear a click as they lock in.
- Final Steps: Reinstall any trim panels you removed and reconnect the negative battery terminal. Start the truck and test the 4×4 selector switch to confirm proper operation.
Guaranteed Fitment for Your GM Truck or SUV
This module is a direct replacement for a wide range of General Motors vehicles. Please verify your model and year below. This part is cross-compatible with the following part numbers: 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878.
- Chevrolet Silverado 1500/2500/3500: 2007 (New Body Style) – 2013/2014
- GMC Sierra 1500/2500/3500: 2007 (New Body Style) – 2013/2014
- Chevrolet Avalanche 1500: 2008-2013
- Chevrolet Suburban 1500/2500: 2008-2014
- Chevrolet Tahoe: 2008-2014
- GMC Yukon & Yukon XL 1500/2500: 2007-2014
- GMC Sierra Denali Models: 2007-2014
Frequently Asked Questions
What does “programmed to your VIN” mean?
It means we load the specific software from GM for your truck’s exact configuration directly onto the module before we ship it. This ensures it communicates perfectly with your truck’s other computers, making it a true plug-and-play part without needing a dealer visit.
Do I need any special tools for installation?
No special tools are required. Basic hand tools like a socket set and a trim removal tool (or a flathead screwdriver) are all you should need to access and replace the module.
Is this the same as the module for the electronic transfer case (opt NQH)?
Yes, this TCCM is the correct controller for GM trucks equipped with the MP1625/1626 transfer cases, which corresponds to RPO code NQH on many models listed. It also works with other electronic shift transfer cases of the era.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive your VIN to program it.
Will this fix my ‘Service 4WD’ light?
In the vast majority of cases where the vehicle has symptoms like an inoperative 4×4 switch and communication codes for the TCCM, replacing this module is the correct fix. It is the most common failure point in the GM 4×4 system for these years.