Restore Your Truck’s 4×4 Capability with a Plug-and-Play Solution
If you’re staring at a persistent “Service 4WD” light on the dash of your 2008-2013 GMC Yukon XL 2500, you’re not alone. As a mechanic with over two decades of experience, I’ve seen this issue countless times. The inability to shift into 4-High or 4-Low isn’t just an inconvenience—it’s a loss of the core utility and safety your truck was built for. The problem often isn’t a catastrophic failure in your transfer case, but rather a fault in its electronic brain: the Transfer Case Control Module (TCCM).
This isn’t just a replacement part; it’s a complete, ready-to-install fix. We take a genuine GM-spec TCCM and professionally program it with the latest vehicle software, specifically matched to your truck’s VIN. This crucial step means you can bypass the dealership entirely, saving you hundreds of dollars in programming fees and valuable time. You get a module that communicates flawlessly with your truck’s systems right out of the box.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Sierra 2500, frustrated because his 4WD selector switch was dead and the “Service 4WD” light was on. His local shop quoted him for a new transfer case motor, but he wanted a second opinion. I pulled the codes and saw a U0102 – Lost Communication with Transfer Case Control Module. This code rarely points to the motor; it’s an electronic handshake failure. Instead of a costly mechanical repair, we swapped in a pre-programmed TCCM. In under 15 minutes, the light was off, the selector switch worked perfectly, and all 4WD modes were restored. This is the most common failure I see for these symptoms.
Is Your Truck Showing These Symptoms?
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, 4-HI, Auto 4WD, or 4-LO.
- ✔ The selector switch lights are inoperative or flashing.
- ✔ Grinding or delayed engagement when attempting to shift the transfer case.
- ✔ Diagnostic Trouble Codes (DTCs) stored, such as C0306, C0327, C0374, or U0102.
A Straightforward Guide to Installation
This is a job most DIY enthusiasts can handle with basic tools. The module is typically located under the driver’s side of the dashboard, to the left of the steering column.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most Yukon XL models, you’ll find the TCCM mounted to a bracket under the dash, near the emergency brake pedal. You may need to remove a lower dash 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 all electrical connectors. You should hear a click as they lock in.
- Reconnect and Test: Reinstall any panels you removed and reconnect the negative battery terminal. Start the vehicle and test the 4WD selector switch to confirm that all modes engage correctly. The “Service 4WD” light should be gone.
Guaranteed Fitment for Your GM Truck or SUV
This module, part number 24241970, is a direct replacement for a wide range of GM vehicles. We guarantee compatibility if your vehicle is listed below. It is also a compatible replacement for part numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24242480, 24243084, 24243085, 24249095, and 24252878.
- AVALANCHE 1500: 2008-2013
- SIERRA 1500 PICKUP: 2007 (New Body Style), 2008-2013
- SIERRA 2500/3500 PICKUP: 2007 (New Body Style), 2008-2014
- SIERRA DENALI: 2007-2010
- SIERRA DENALI 2500/3500: 2011-2014
- SILVERADO 1500 PICKUP: 2007 (New Body Style), 2008-2013
- SILVERADO 2500/3500 PICKUP: 2007 (New Body 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
Why do you need my VIN to program the 2008-2013 Yukon XL 2500 TCCM?
Your VIN allows us to load the exact GM software calibration for your truck’s specific options, like transfer case type and tire size. This ensures perfect communication between the module and your vehicle, making it a true plug-and-play installation without needing a dealer.
Is this installation difficult for a DIY mechanic?
Not at all. The TCCM is typically located under the driver’s side dash and is accessible with basic hand tools. The entire process of swapping the module usually takes less than 30 minutes.
Will this part fix my “Service 4WD” light?
In the vast majority of cases, yes. A faulty TCCM is the most common cause of the “Service 4WD” light and non-functional 4×4 system on these GM trucks and SUVs. This module is designed to resolve that specific issue.
What happens if I don’t provide a VIN?
We cannot ship the module without a VIN. The programming is the most critical part of this service and is essential for the part to function correctly in your vehicle. Please provide your VIN during or after checkout.
Is this a new or used part?
This is a high-quality, tested replacement module that has been inspected and programmed by our expert technicians to meet or exceed original specifications. It is ready for installation.