Restore Your 4WD System with a Reliable, Pre-Programmed TCCM
Is that frustrating “Service 4WD” light glaring at you from the dash of your 2008-2014 Chevy Tahoe? Are you unable to switch between 2WD and 4WD, leaving you unprepared for bad weather or tough terrain? As a technician with over two decades of experience, I’ve seen this exact issue hundreds of times. The Transfer Case Control Module (TCCM) is the brain of your four-wheel-drive system, and when it fails, it can leave your capable SUV feeling powerless. This isn’t just an inconvenience; it’s a matter of safety and reliability.
The common solution often involves a costly trip to the dealership for diagnostics, the part itself, and then expensive programming. We eliminate that hassle. This TCCM, part number 24243085, is the definitive fix for your vehicle. We take care of the most critical step for you: before we ship it, we program the module with the latest GM software, specifically matched to your vehicle’s VIN. This means it arrives at your door ready for a straightforward, plug-and-play installation, getting you back on the road with confidence.
A Technician’s Notebook: The TCCM That Saved a Fishing Trip
I remember a customer bringing in his 2011 Silverado—same platform as your Tahoe—panicked because the “Service 4×4” light was on, and his truck was stuck in 2WD. He was leaving for a fishing trip in two days and needed to pull his boat up a slippery ramp. A quick scan with my diagnostic tool pulled code C0327 for the encoder motor circuit and a U0102 for lost communication with the TCCM. While the encoder motor was a possibility, experience pointed me to the module first. These TCCMs are often susceptible to failure from voltage fluctuations or internal solder joint cracks over time. We installed one of our pre-programmed modules, and in less than 30 minutes, the codes were gone, the 4WD system was shifting perfectly, and he was able to leave for his trip on time. It’s a prime example of how the right part, properly prepared, makes all the difference.
Is Your Tahoe Showing These Symptoms?
- ✔ “Service 4WD” or “Service 4×4” message illuminated on the dashboard.
- ✔ Inability to shift the transfer case into or out of 4-High, 4-Low, or 2-Wheel Drive.
- ✔ The 4WD selector switch lights are off or flash without engaging.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0306, C0321, C0327, C0569, or communication codes like U0102.
- ✔ A noticeable clunking or grinding noise when attempting to shift the transfer case.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the Module: On most 2008-2014 Tahoes, the TCCM is located on the driver’s side of the dashboard, up and to the left of the steering column. You may need to remove the lower dash panel for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Bolt your new, pre-programmed TCCM into place. Firmly reconnect the electrical harnesses, ensuring they click securely into position.
- ✔ Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Start the vehicle and test the 4WD selector switch to confirm proper operation through all modes. The “Service 4WD” light should be off.
Guaranteed Fitment for Your GM Truck or SUV
This module is a direct-fit replacement for a wide range of GM vehicles. We program it specifically for your VIN, ensuring perfect communication with your truck’s systems. It is compatible with the following models and part numbers:
Compatible Part Numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, 24252878
Vehicle Fitment:
- ✔ Chevrolet Tahoe: 2008-2014
- ✔ Chevrolet Avalanche 1500: 2008-2013
- ✔ Chevrolet Silverado 1500/2500/3500: 2007 (New Body Style) – 2014
- ✔ Chevrolet Suburban 1500/2500: 2008-2014
- ✔ GMC Sierra 1500/2500/3500: 2007 (New Body Style) – 2014
- ✔ GMC Sierra Denali / Denali 2500 / Denali 3500: 2007-2014
- ✔ GMC Yukon / Yukon XL 1500 / Yukon XL 2500: 2007-2014
Frequently Asked Questions
Do I need to do any programming myself?
No. This is the biggest benefit of our service. You provide us with your vehicle’s VIN during checkout, and we program the module with the latest GM software before shipping. It arrives ready for installation.
Where is the TCCM located on my 2011 Tahoe?
The Transfer Case Control Module is typically found behind the dashboard on the driver’s side, to the left of the steering column. Access usually requires removing the lower dash knee bolster panel.
Will this fix a “Service 4WD” light?
In the vast majority of cases, yes. A faulty TCCM is the most common cause of the “Service 4WD” warning on these GM trucks and SUVs. If the issue is caused by a different component, like the transfer case encoder motor or the selector switch, this part will not resolve it.
Is this a new or used part?
This is a high-quality, tested component that is guaranteed to perform to OEM standards. We ensure every unit is fully functional and load it with vehicle-specific software to provide a reliable, long-term solution.
What is the process after I purchase?
After you complete your purchase, you must send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship the module without it. Once we receive your VIN, we will program the module and ship it to you promptly.