Restore Your Truck’s 4×4 Control and Confidence
Is that frustrating “Service 4WD” light glaring at you from the dashboard of your 2007-2013 Sierra 1500? Are you unable to switch between 2WD, 4-High, and 4-Low, leaving you unprepared for bad weather or tough terrain? You’re not alone. The Transfer Case Control Module (TCCM) is the electronic brain of your truck’s four-wheel-drive system, and when it fails, it can leave your capable truck feeling powerless. As a technician with over two decades of experience, I’ve seen countless GM trucks sidelined by this exact issue. The good news is, the fix is straightforward and doesn’t require an expensive trip to the dealership.
This replacement TCCM, part number 24241970, is the definitive solution. We take the hassle out of the repair by pre-programming the module to your truck’s specific Vehicle Identification Number (VIN) before it even leaves our facility. This means it arrives ready for a direct, plug-and-play installation, loaded with the latest GM software updates. You get restored functionality and improved performance without the need for specialized scan tools or costly dealer programming fees.
From the Diagnostic Bay: The Intermittent 4WD Ghost
A customer brought in his 2011 Silverado 2500, a workhorse he depended on. His complaint was baffling: the 4WD would work perfectly for weeks, then suddenly refuse to engage, flashing the “Service 4WD” message. He’d already replaced the selector switch on the dash to no avail. After hooking up my scanner, I found intermittent communication loss codes (U0102) pointing to the TCCM. These modules can suffer from internal solder joint failure due to heat and vibration, causing them to work one minute and fail the next. Instead of a costly diagnostic chase, we installed one of our pre-programmed TCCMs. The swap took less than 30 minutes, and the problem was solved permanently. He drove away with a reliable 4×4 system and saved hundreds compared to the dealership’s quote.
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 for your 2007-2013 Sierra 1500 TCCM problems:
- ✔ “Service 4WD” or “Service Four Wheel Drive” message is illuminated on the instrument cluster.
- ✔ Inability to shift the transfer case into or out of 4WD High, 4WD Low, or 2WD.
- ✔ The 4WD selector switch lights do not illuminate or flash without engaging.
- ✔ Grinding or clunking noises when attempting to shift the transfer case.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0327, C0374, or U0102 (Lost Communication with TCCM).
A Straightforward Guide to Installation
Replacing the TCCM on your GM truck is a job most DIYers can handle with basic tools. This module is typically located behind the lower dashboard 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 column. It’s usually held in by a few screws and clips.
- Locate the TCCM: Look for a small black or silver box with several electrical connectors. It is often mounted to a metal bracket.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the old module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed TCCM into place. Reconnect the electrical harnesses, ensuring they click securely into place.
- Final Steps: Reinstall the lower dash panel and reconnect the negative battery terminal. Start the truck 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. Please verify your vehicle is on the list below. This part is compatible with original part numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878.
- AVALANCHE 1500: 2008-2013
- SIERRA 1500 PICKUP: 2007 (New Body Style, Opt NQH), 2008-2013
- SIERRA 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
By ordering this pre-programmed 2007-2013 Sierra 1500 TCCM, you’re choosing a reliable, cost-effective repair that puts you back in control of your truck’s legendary capabilities.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit VIN. We will program the module with the latest GM software specific to your vehicle before shipping it out.
Is any additional programming required after installation?
No. This module is a true plug-and-play solution. Because we program it to your VIN before shipment, you do not need to take it to a dealer or mechanic for further programming.
Will this fix the ‘Service 4WD’ light?
In the vast majority of cases, a faulty TCCM is the cause of the ‘Service 4WD’ light and shifting issues. If this module is the source of the problem, this part will resolve the issue and turn off the warning light.
What does ‘New Style (smooth door skin)’ mean for 2007 models?
In 2007, GM produced both the old ‘Classic’ body style and the new ‘GMT900’ body style. This part fits the new GMT900 trucks, which are easily identified by their smooth, modern door skins without a separate plastic body molding strip.
Is this a new or used part?
This is a high-quality, tested, and guaranteed functional used part that has been expertly programmed with the latest vehicle-specific software, ensuring reliability and performance equivalent to a new component.