Restore Your Truck’s Four-Wheel Drive with a Plug-and-Play Solution
As a mechanic with over two decades of experience under the hood of GM trucks, I’ve seen the frustration a “Service 4WD” light can cause. Your powerful Sierra 2500 suddenly feels limited, unable to tackle the tough terrain or slick roads it was built for. The problem often isn’t a major mechanical failure in the transfer case itself, but rather its brain—the Transfer Case Control Module (TCCM). This module is responsible for every command, from switching to 4-HI on a snowy morning to engaging 4-LO for a tough pull. When it fails, you’re left stranded in one mode, or worse, with a system that doesn’t respond at all.
This is a direct-replacement TCCM, part number 24249095, for your 2007-2014 Sierra 2500 Pickup and a wide range of other GM trucks and SUVs. The biggest advantage we offer is the pre-programming service. Forget about booking a costly appointment at the dealership for flashing. Simply provide us with your vehicle’s VIN during checkout, and my team will program the module with the latest, most stable GM software specific to your truck. It arrives at your door ready for a simple, plug-and-play installation.
From the Diagnostic Bay
I remember a customer with a 2011 Sierra 2500 who came into the shop convinced he needed a new transfer case. The 4WD switch was dead, and he heard a slight clicking from under the truck. Another shop had quoted him over two thousand dollars for a transfer case replacement. I hooked up my scan tool and immediately found a U0102 code—Lost Communication with Transfer Case Control Module. Before condemning expensive hardware, I always check the control side. We found the TCCM, located behind the driver’s side dash, had failed. A new, programmed module had his 4WD system working perfectly in under an hour for a fraction of the initial quote. This is why a proper diagnosis is key, and why this pre-programmed 2007-2014 Sierra 2500 TCCM is such a valuable and effective repair.
Is Your Truck Showing These Symptoms?
A faulty 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 shift into or out of 4WD (4-HI, 4-LO, or Auto 4WD).
- ✔ The 4WD selector switch lights are off or flash without engaging.
- ✔ The vehicle is stuck in 4WD or 2WD.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0327, C0398, or the common communication code U0102.
A Straightforward Guide to Installation
One of the best parts about this pre-programmed module is the ease of installation. You can have your 4×4 system back online with basic hand tools right in your driveway.
- 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 on the driver’s side of the dashboard, behind the lower dash panel and often attached to a metal support bracket.
- Remove Trim Panels: Carefully remove the lower dash panel below the steering column to gain access. This usually involves a few screws and clips.
- Unplug and Unbolt: Disconnect the electrical connectors from the old TCCM. Then, remove the bolts or nuts holding the module to its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCCM into place. Reconnect the electrical connectors—they will only fit one way.
- Reassemble and Test: Reinstall the dash panel, reconnect the battery terminal, and start the truck. The “Service 4WD” light should be off. Test the functionality by switching through all 4WD modes to confirm the repair was successful.
Will This Fit My Truck?
This TCCM is a direct replacement for a wide array of GM vehicles. We guarantee compatibility if your vehicle is listed below. It replaces a variety of original part numbers, including: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878.
- AVALANCHE 1500: 2008-2013
- SIERRA 1500 PICKUP: 2007 (New Body Style, NQH), 2008-2013
- SIERRA 2500 PICKUP: 2007 (New Body Style, NQF), 2008-2014
- SIERRA 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, NQH), 2008-2013
- SILVERADO 2500 PICKUP: 2007 (New Body Style, NQF), 2008-2014
- SILVERADO 3500 PICKUP: 2007 (New Body Style), 2008-2014
- SUBURBAN 1500: 2008-2014
- SUBURBAN 2500: 2008-2013
- TAHOE: 2008-2014
- YUKON & YUKON DENALI: 2007-2014
- YUKON XL 1500 & DENALI: 2007-2014
- YUKON XL 2500: 2008-2013
By purchasing this 2007-2014 Sierra 2500 TCCM, you are not just buying a part; you are buying a complete, hassle-free repair that restores the full capability and safety of your truck.
Frequently Asked Questions
Do I need to do any programming myself?
No. This module is fully programmed to your vehicle using the VIN you provide at checkout. It is a true plug-and-play part, saving you a trip to the dealer.
Where do I provide my VIN?
You can add your vehicle’s 17-digit VIN in the notes section during the checkout process. We cannot ship the module until we have your VIN to program it correctly.
Is this part difficult to install?
Not at all. For most DIYers with basic hand tools, this is a 30-60 minute job. The module is typically located behind the lower driver-side dashboard.
Will this fix my ‘Service 4WD’ light?
In the vast majority of cases, yes. A failing TCCM is the most common cause of this warning light on these GM trucks. If the light is on and you cannot switch 4WD modes, this module is the most likely solution.
What if I have a different part number on my old module?
This module is a compatible replacement for a long list of GM part numbers, including 24261367, 24249095, and 24252878 among others. As long as your vehicle model and year are on our fitment list, this part will work.