Restore Your Truck’s 4WD Capability Instantly
Is your Sierra 2500 flashing a “Service 4WD” message, or refusing to switch between 2WD and 4WD? A faulty Transfer Case Control Module (TCCM) is often the culprit, leaving your powerful truck unprepared for tough jobs or bad weather. This module is the definitive, hassle-free solution. It arrives at your door pre-programmed to your truck’s specific VIN, loaded with the latest GM software updates. This means you can skip the expensive and time-consuming trip to the dealership for programming. Get back the confidence and all-terrain control you depend on with a true plug-and-play fix.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, this module is the component you need to get your truck back in prime condition. It directly addresses common failure points and diagnostic trouble codes (DTCs) like C0306, C0321, C0327, or a complete loss of communication with the module.
- “Service 4WD” light is illuminated on the dash
- Inability to shift into or out of 4-High or 4-Low
- Selector switch lights are blinking or not working at all
- Grinding or clunking noises during attempted shifts
- 4WD system engages or disengages on its own
Features & Benefits
- ✔ VIN-Specific Programming: We flash the module with the latest GM software using your vehicle’s VIN, ensuring perfect compatibility and function right out of the box.
- ✔ No Dealer Visit Required: This pre-programmed unit saves you hundreds of dollars in dealership programming fees and frees you from appointment scheduling hassles.
- ✔ Restored Drivetrain Performance: Regain complete and reliable control over your 2WD, 4-High, and 4-Low settings for any road or work condition.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for the original module, guaranteeing a straightforward installation process with factory mounting points and connectors. This module is compatible with part numbers 24261367, 12588096, 24239190, 24240487, 24241143, and many more.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Real Fix for Your 4WD Problem
As a technician, I’ve seen countless truck owners spend a small fortune replacing the 4WD actuator motor or the dash switch, only to find the problem persists. The Transfer Case Control Module is the brain of the 4WD system. When it fails, it sends incorrect signals or no signals at all, making other perfectly good parts appear faulty. Before you start throwing parts at your truck, check for communication with the TCCM. If your scanner can’t talk to it, or it shows communication codes, you’ve found your problem. This pre-programmed 2007-2014 Sierra 2500 Transfer Case Control Module is the correct first step to a lasting repair, saving you time, money, and diagnostic frustration.
Don’t let a small electronic module sideline your entire truck. This is the most efficient and reliable way to solve your 4WD issues and ensure your vehicle is ready for anything. By providing us with your VIN at checkout, you guarantee that the 2007-2014 Sierra 2500 Transfer Case Control Module you receive is prepared specifically for your vehicle’s unique configuration. Restore your truck’s legendary capability and get back to work with confidence.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the module to function in your vehicle.
Is this part difficult to install?
No, the physical installation is typically very straightforward. The module is usually located on the driver’s side, attached to a frame cross-member or under the dash. It involves disconnecting the battery, unplugging a few electrical connectors, and removing a couple of bolts. Since our module comes pre-programmed, no further steps are needed after installation.
Will this fix the “Service 4WD” light?
In the vast majority of cases where the TCCM has failed, yes. This module is the most common cause of the “Service 4WD” light and associated shifting problems in these GM trucks. Once installed, the error message should clear.
Does this fit models other than the Sierra 2500?
Yes. This 2007-2014 Sierra 2500 Transfer Case Control Module is compatible with a wide range of GM trucks and SUVs from that era, including the Silverado, Suburban, Tahoe, Yukon, and Avalanche. Please check the detailed fitment list on this page to confirm compatibility with your specific model and year.
Is a core charge required for my old module?
No, there is no core charge associated with this part. You are not required to send your old, failed module back to us.