Restore Your Truck’s 4×4 Capability Instantly
As a mechanic with two decades of experience under the hood, I’ve seen the frustration firsthand: you get in your Silverado, press the 4HI button, and… nothing. Or worse, the dreaded “Service 4WD” message illuminates your dash. Your truck’s capability is suddenly compromised. In the majority of these cases, the culprit is a failed Transfer Case Control Module (TCCM). This isn’t just an inconvenience; it’s a reliability issue, especially when you depend on your four-wheel drive for work, bad weather, or navigating tough terrain.
This isn’t just a replacement part; it’s a complete solution. We offer a genuine-quality TCCM, part number 24241970, that arrives at your door pre-programmed with the latest GM software, specifically matched to your vehicle’s VIN. This completely eliminates the need for an expensive and time-consuming trip to the dealership for programming. You get a reliable, plug-and-play fix that restores your truck’s crucial 4×4 functions right in your own garage.
A Technician’s Notebook
I recall a 2011 Silverado 2500 that came into the shop. The owner, a contractor, was stuck in 2WD right before a snowstorm was predicted. His 4WD selector switch lights would just blink and then go out. A quick scan with a professional tool revealed DTC U0102 – Lost Communication with Transfer Case Control Module. We could have spent hours chasing wires, but experience pointed directly to an internally failed TCCM. Instead of sending him to the dealer for a new module and programming, we installed one of our VIN-flashed units. In under 30 minutes, the codes were clear, the 4WD system engaged perfectly, and he was back on the road with confidence. That’s the peace of mind this part provides.
Is Your Truck Displaying These TCCM Failure Signs?
A failing TCCM can manifest in several ways. If you’re experiencing any of the following, this module is the likely solution. I’ve personally diagnosed these symptoms on hundreds of GM trucks.
- ✔ “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster.
- ✔ Inability to shift between 2WD, 4HI, 4LO, or Auto modes.
- ✔ The 4WD selector switch lights blink but do not stay solid.
- ✔ The vehicle is stuck in one 4WD mode or defaults to 2WD.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0306, C0327, C0374, or communication codes like U0102.
A Straightforward Guide to Installation
Replacing the 2007-2013 Silverado 1500 TCCM is a job most DIYers can handle with basic tools. The module is typically located behind the lower dash panel on the driver’s side.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Access the Module: Remove the lower dash panel (knee bolster) below the steering wheel. It’s usually held in by a few screws or clips.
- Locate the TCCM: Look for a small black or silver box with several electrical connectors. It’s often mounted to a metal bracket to the left of the steering column.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCCM into place. Securely plug in all the electrical connectors until they click.
- Final Steps: Reinstall the lower dash panel and reconnect the negative battery terminal. Start the truck and test your 4WD system. The “Service 4WD” light should be off, and all modes should engage properly.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM trucks and SUVs, ensuring a perfect fit and function. Please confirm your vehicle is on the list below. This part is a direct replacement for multiple part numbers, including: 24261367, 12588096, 24239190, 24240487, 24241143, 24249095, and more.
- AVALANCHE 1500: 2008-2013
- SIERRA 1500/2500/3500 PICKUP: 2007 (New Body Style), 2008-2014
- SIERRA DENALI (1500/2500/3500): 2007-2014
- SILVERADO 1500 PICKUP: 2007 (New Body Style, opt NQH), 2008-2013
- SILVERADO 2500/3500 PICKUP: 2007 (New Body Style), 2008-2014
- SUBURBAN 1500/2500: 2008-2014
- TAHOE: 2008-2014
- YUKON / YUKON XL 1500/2500: 2007-2014
Frequently Asked Questions
Do I need to program this module?
No. This is the biggest benefit we offer. We program the module to your vehicle’s specific VIN before shipping it. It arrives ready for a simple, plug-and-play installation, saving you a trip to the dealer.
What do you need from me to program it?
After you complete your purchase, simply send us your 17-digit Vehicle Identification Number (VIN). We handle the rest to ensure the software is a perfect match for your truck’s options.
Where is the TCCM located on my 2007-2013 Silverado 1500?
The TCCM is located behind the dashboard on the driver’s side, to the left of the steering column. You will need to remove the lower dash panel (knee bolster) to access it.
Will this fix my ‘Service 4WD’ light?
In a very high percentage of cases, yes. A faulty TCCM is the most common cause of the ‘Service 4WD’ light and related shifting issues on these GM trucks. This module is designed to resolve that specific problem.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for a long list of GM part numbers, including 24261367, 12588096, 24239190, 24241970, and many others listed in the description. It’s a fully compatible, updated solution.