Restore Your 4×4 System with a Reliable, Programmed TCCM
As a technician with over two decades of experience, I’ve seen countless GM trucks roll into my bay with the dreaded ‘Service 4WD’ light glaring on the dash. The owner is often frustrated, unable to shift into four-wheel drive when they need it most—or worse, stuck in 4-LO. The culprit is frequently a failed Transfer Case Control Module (TCCM). This isn’t just an inconvenience; it’s a reliability issue that can leave you stranded. This module is the direct, hassle-free solution to get your truck’s 4×4 system operating flawlessly again.
This isn’t just a replacement part; it’s a complete fix. We take a genuine GM-spec module and program it with the latest vehicle-specific software directly from GM, using the VIN you provide. This means it arrives at your door ready to install, with no need for an expensive trip to the dealership for programming. You’re getting a part that communicates perfectly with your truck’s systems, restoring the precise control and function you expect from your 2007-2014 Sierra 2500 Pickup.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Sierra 2500 with an intermittent 4WD fault. The selector switch lights would flash, but it wouldn’t engage. He’d already replaced the switch and the transfer case encoder motor with no luck. Scanning the vehicle, I found a U0102 code—’Lost Communication with Transfer Case Control Module.’ Instead of guessing, we inspected the TCCM. On these trucks, they’re mounted under the dash, but can still be susceptible to voltage spikes or internal corrosion. Swapping in a pre-programmed Sierra 2500 Transfer Case Module like this one solved the communication fault instantly. The 4WD system came back online, and the customer was back on the road in under 30 minutes, saving hundreds compared to a dealer visit.
Is Your Truck Showing These Symptoms?
A failing TCCM can cause a range of confusing issues. 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 shift between 2HI, 4HI, Auto, or 4LO.
- ✔ The 4WD selector switch lights are inoperative or flash without engaging.
- ✔ The truck is stuck in a single four-wheel-drive mode.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0306, C0321, C0327, C0374, or U0102.
A Straightforward Guide to Installation
One of the best features of this module is its simple, plug-and-play installation. No special tools are required, making it a perfect job for a DIY enthusiast or a quick swap for a professional mechanic.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the Module: On most 2007-2014 GM trucks and SUVs, the TCCM is located under the driver’s side of the dashboard, to the left of the steering column. You may need to remove a lower dash panel for access.
- Unplug and Unbolt: Carefully disconnect the electrical connectors from the old module. They have release tabs that need to be pressed. Then, remove the bolts or nuts holding the module bracket in place.
- Install the New Module: Mount your new, pre-programmed TCCM in the same location and secure it with the original hardware.
- Reconnect and Test: Plug the electrical connectors firmly into the new module. Reconnect the battery terminal. Start the vehicle and test the 4WD selector switch to confirm proper operation.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM trucks and SUVs, ensuring a perfect fit and function. It is compatible with part numbers 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878. Please verify your vehicle is on the list below:
- AVALANCHE 1500: 2008-2013
- SIERRA 1500 PICKUP: 2007 (New Style, NQH), 2008-2013
- SIERRA 2500 PICKUP: 2007 (New Style, NQF), 2008-2014
- SIERRA 3500 PICKUP: 2007 (New Style), 2008-2014
- SIERRA DENALI: 2007-2010
- SIERRA DENALI 2500/3500: 2011-2014
- SILVERADO 1500 PICKUP: 2007 (New Style, NQH), 2008-2013
- SILVERADO 2500 PICKUP: 2007 (New Style, NQF), 2008-2014
- SILVERADO 3500 PICKUP: 2007 (New Style), 2008-2014
- SUBURBAN 1500/2500: 2008-2014 / 2008-2013
- TAHOE: 2008-2014
- YUKON / YUKON XL 1500: 2007 (Denali), 2008-2014
- YUKON XL 2500: 2008-2013
Frequently Asked Questions
Do I need to do any programming myself?
No. This module arrives 100% ready for installation. We handle all the programming based on your vehicle’s VIN before we ship it, saving you time and money.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive your VIN.
Where is the TCCM located on my 2011 Sierra 2500?
On the 2007-2014 Sierra/Silverado trucks, the Transfer Case Control Module is typically found under the driver’s side dashboard, to the left of the steering column and above the emergency brake pedal assembly.
What if this doesn’t fix my problem?
While the TCCM is the most common point of failure for these symptoms, other parts like the encoder motor or selector switch can also be at fault. A proper diagnosis is always recommended. However, our pre-programmed module eliminates a major variable and is a critical step in a complete 4WD system repair.
Is this compatible with multiple part numbers?
Yes. This module is the modern, updated replacement for many older part numbers. As long as your vehicle is on the fitment list, this module will work correctly, even if the number on your original part is different from 24239190.