Restore Your Truck’s 4×4 Control and Eliminate Annoying Warnings
Is the “Service 4WD” light glaring at you from the dash of your 2007-2013 GMC Sierra 1500? Are you unable to switch between 2WD, 4HI, or 4LO, leaving you unprepared for changing road conditions? You’re dealing with a classic symptom of a failing Transfer Case Control Module (TCCM). As the electronic brain of your four-wheel-drive system, when the TCCM goes down, it takes your truck’s off-road and all-weather capabilities with it. This isn’t just an inconvenience; it’s a reliability issue that needs a solid fix.
This isn’t just a replacement part; it’s a complete solution. We professionally program this module to your truck’s specific Vehicle Identification Number (VIN) before it ships. This means it arrives at your door with the latest GM software updates, ready for a true plug-and-play installation. You get to skip the expensive trip to the dealership for programming, saving you both time and hundreds of dollars in labor fees.
A Technician’s Notebook
I remember a customer bringing in his ’11 Sierra, completely frustrated. His truck was stuck in 4HI right before a big snowstorm was forecast. The local dealer quoted him over $700 for the part and programming, with a three-day wait. He was worried he wouldn’t have his 4×4 ready in time. We diagnosed a failed TCCM. Instead of the dealer route, we used one of our pre-programmed modules. The physical swap took less than 15 minutes. He drove out with a fully functional 4WD system for a fraction of the cost and was ready for the snow. That’s the power of a solution that’s ready to go right out of the box.
Is Your Sierra Showing These 4×4 Problems?
A faulty 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 issues:
- ✔ The “Service 4WD” or “Service Four Wheel Drive” message is constantly on.
- ✔ Your 4×4 selector switch lights don’t illuminate or flash without engaging.
- ✔ The truck is stuck in one drive mode (e.g., 2WD, 4HI) and will not shift.
- ✔ You hear unusual clicking or grinding noises when attempting to switch drive modes.
- ✔ Diagnostic scans show communication error codes like U0102 (Lost Communication with TCCM).
A Straightforward Guide to Installation
One of the biggest benefits of our VIN-programmed module is the simple installation. You don’t need advanced diagnostic tools or a trip to the shop. Here’s how easy it is:
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the Module: On most 2007-2013 Sierra models, the TCCM is located under the driver’s side 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 locking tabs, so be gentle. Then, remove the bolts or nuts holding it in place.
- Install the New TCCM: Mount your new, pre-programmed module in the same location and secure it with the original hardware.
- Connect and Power Up: Firmly plug the electrical connectors into the new TCCM. Reconnect your battery terminal.
- Final Check: Start your truck. The “Service 4WD” light should be off. Test the selector switch to confirm you can cycle through all drive modes correctly.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM trucks and SUVs, ensuring perfect function. Please provide your VIN upon purchase for programming. This part fits the following vehicles:
- GMC Sierra 1500/2500/3500: 2007 (New Body Style), 2008, 2009, 2010, 2011, 2012, 2013, 2014 (HD Models)
- GMC Sierra Denali: 2007-2014
- Chevrolet Silverado 1500/2500/3500: 2007 (New Body Style), 2008, 2009, 2010, 2011, 2012, 2013, 2014 (HD Models)
- Chevrolet Avalanche 1500: 2008-2013
- Chevrolet Suburban 1500/2500: 2008-2014
- Chevrolet Tahoe: 2008-2014
- GMC Yukon / Yukon XL 1500/2500: 2007-2014
This part, 24243085, is the correct and updated replacement for numerous previous part numbers, including: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24249095, and 24252878.
Frequently Asked Questions
Do I need to do any programming myself?
No. This is the biggest benefit of our service. We program the module to your vehicle’s VIN before shipping. It arrives ready for installation with no additional programming or dealer visits required.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit VIN. We cannot ship the module until we receive this information for programming.
Is this a new or used part?
This is a high-quality, tested, and guaranteed functional part that has been loaded with new, vehicle-specific software directly from GM’s databases.
Will this fix my “Service 4WD” light?
In the vast majority of cases where the TCCM is the source of the problem, yes. This module is the most common failure point for the symptoms described. However, you should always confirm your diagnosis. Other issues, like a faulty transfer case encoder motor or selector switch, can sometimes cause similar warnings.
Where is the TCCM located on my 2011 Sierra 1500?
The Transfer Case Control Module is typically mounted to a bracket behind the dashboard, on the driver’s side to the left of the steering column. Access is gained by removing the lower dash cover panel.