Is the dreaded “Service 4WD” light staring back at you from your dashboard? If your truck is struggling to shift into four-wheel drive, or won’t shift at all, you’ve likely pinpointed the problem: a failed Transfer Case Control Module (TCCM). Get your truck’s legendary capability back with this direct-fit, VIN-programmed TCCM. This isn’t just a part; it’s the complete, hassle-free solution that gets you back on the road and off the beaten path with confidence, saving you a costly and time-consuming trip to the dealership.
Common Symptoms & Your Solution
A faulty TCCM is the central point of failure for your 4WD system, often leading to frustrating and unpredictable issues. If you’re experiencing any of the following, this module is the definitive fix:
- “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster
- Inability to switch between 2HI, 4HI, and 4LO
- Indicator lights on the 4WD selector switch are off or flashing
- Grinding or clunking noises during attempted shifts
- Diagnostic Trouble Codes (DTCs) such as C0327, C0398, or various U-codes indicating a loss of communication.
This Programmed 2007-2013 Sierra 1500 Transfer Case Control Module arrives ready for installation, taking all the guesswork and programming headaches out of the repair.
Features & Benefits
- ✔ Plug & Play Installation: We professionally program this module to your vehicle’s specific VIN before shipping. No dealer flashing or expensive scan tools required.
- ✔ Updated GM Software: Each unit is loaded with the newest software updates from General Motors to ensure optimal performance, improved shift quality, and maximum durability.
- ✔ Restore Full Functionality: Regain complete and reliable control over your 4WD system, ensuring it engages exactly when you need it most—whether on a snowy road or a muddy trail.
- ✔ Guaranteed Compatibility: Replaces a wide range of original part numbers, including 24243085, 24261367, 24252878, and more. See the full fitment list for details.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
An Expert’s Diagnostic Tip
“Before you condemn the TCCM, take 10 minutes to check two other common culprits. First, inspect the main ground wire connected to the frame rail directly below the driver’s door. A corroded or loose ground can cause all sorts of electrical gremlins that mimic a bad module. Second, have a helper cycle the 4WD switch while you listen or feel for activity at the transfer case encoder motor (actuator). If you hear nothing, the motor itself could be the issue. If the motor tries to work but fails, or if the ground is good, it’s almost certainly the module. This Programmed 2007-2013 Sierra 1500 Transfer Case Control Module is the reliable fix for a confirmed module failure.”
Don’t let a small electronic box disable your powerful truck. By providing us with your VIN upon purchase, you’re getting a component that is perfectly matched to your vehicle’s options and ready to restore the performance you depend on. This is the smartest, most efficient way to solve your 4WD problems for good. The core job of this Programmed 2007-2013 Sierra 1500 Transfer Case Control Module is to give you back control.
Frequently Asked Questions
Do I need to take this part to the dealer for programming?
Absolutely not. The main benefit of this module is that we do all the programming for you before it ships. It will arrive at your door completely ready to be installed, saving you hundreds in dealership fees and service time.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive the VIN, as the programming is specific to your truck.
What if this doesn’t fix my 4WD problem?
While this module corrects the most common cause of 4WD failure in these trucks, other components like the encoder motor or selector switch can also be at fault. We recommend proper diagnosis before ordering. However, this unit is backed by our one-year replacement warranty for any issues with the module itself.
Is this a new or used part?
This is a high-quality, inspected component that has been tested and loaded with the latest vehicle-specific software to ensure it performs correctly right out of the box.
Which part numbers does this module replace?
This unit is a direct replacement for a wide range of original part numbers, including 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878.
How difficult is the installation?
For someone with basic mechanical skills, the installation is straightforward. The TCCM is typically located under the driver’s side of the dashboard. It involves removing a few trim panels, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in reverse order. The entire process usually takes less than an hour.