Get Your 4WD System Back Online, Fast.
Is the “Service 4WD” light glaring at you from the dash of your Sierra, Silverado, or Tahoe? Are you unable to switch between 2WD and 4WD, or hearing strange noises from your transfer case? A failing Transfer Case Control Module (TCCM) is one of the most common causes of these frustrating issues, leaving your capable truck or SUV stuck in two-wheel drive. This module is the central computer for your 4×4 system, and when it fails, it takes your vehicle’s all-weather, all-terrain confidence with it. Don’t pay for expensive dealership diagnostics and programming. We have the direct, reliable solution.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty TCCM is the likely culprit. This module is engineered to be the definitive fix for:
- “Service 4-Wheel Drive” message on the instrument cluster
- Inability to shift the transfer case into or out of 4-High, 4-Low, or Auto modes
- Selector switch lights are inoperative or flashing
- Diagnostic Trouble Codes (DTCs) such as C0327, C0398, U0102, or other communication errors
- Delayed or harsh engagement of the 4WD system
Our Programmed GM Transfer Case Control Module 24243085 arrives at your door ready for installation. We take your vehicle’s VIN and flash the module with the latest, most stable software updates directly from GM. This critical step ensures perfect communication between the module and your truck’s other systems, restoring function and performance without a trip to the dealer.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module specifically for your truck or SUV before shipping. This eliminates the need for expensive scan tools or dealership appointments, saving you time and money.
- ✔ Plug-and-Play Installation: Because it’s pre-programmed, you can simply disconnect the old module and install this one in its place. It’s a straightforward job for a DIYer or any professional technician.
- ✔ Restores Full 4WD Functionality: Regain complete control over your 4×4 system. Get the confidence back to tackle tough weather, job sites, or trails knowing your truck is ready.
- ✔ Updated GM Software: This unit is loaded with the newest software versions, often correcting the glitches and bugs that caused the original part to fail.
- ✔ Broad Compatibility: A direct replacement for a wide range of popular GM trucks and SUVs, including the Sierra, Silverado, Suburban, Tahoe, and Yukon models.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Real Cost of a Failed TCCM
As a technician, I’ve seen firsthand how a TCCM failure can sideline a perfectly good truck. It often happens at the worst time—right before a snowstorm or a planned trip. The real cost isn’t just the part; it’s the lost capability and the hassle. A truck without 4WD is just half a truck. The beauty of a pre-programmed module like this Programmed GM Transfer Case Control Module 24243085 is that it turns a complicated electronic repair into a simple component swap. It empowers the owner to fix their vehicle correctly and affordably, getting their essential tool back to 100% without being at the mercy of dealership service schedules and labor rates.
Frequently Asked Questions
How does the programming process work?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). Our technicians use this VIN to download the correct and most current software from GM’s database and flash it directly onto the module before it is shipped to you.
Is this really a plug-and-play part?
Yes. Because we handle the programming, you will not need any special tools or a trip to the dealership for calibration. Simply locate and replace your old module, which is typically found on the driver’s side of the dashboard, and reconnect the electrical connectors. The system should function correctly upon installation.
What are the most common signs of a failing TCCM?
The most common symptom is the “Service 4WD” light on your dashboard. Other signs include the 4WD selector switch not working, the vehicle being stuck in one drive mode, or diagnostic codes related to the transfer case or loss of communication with the module.
Will this fit my specific truck/SUV?
This module fits a wide range of GM vehicles from approximately 2007-2014. Please check the detailed fitment list in the description to confirm compatibility with your specific year, make, and model. Providing your VIN for programming also serves as a final check for compatibility.
What happens if I forget to provide my VIN?
We cannot ship the module until we receive your VIN, as the programming is a required step for the part to function in your vehicle. We will contact you after your purchase as a reminder, but providing it promptly will ensure the fastest possible shipping time.
What is covered by the warranty?
This unit is backed by our one-year replacement warranty. This covers the part itself against defects in materials or workmanship for a period of one year from the date of purchase.