Restore Your 4WD and Drive with Confidence
Is the dreaded ‘Service 4WD’ light glaring at you from the dashboard? Are you struggling with a transfer case that won’t shift, makes grinding noises, or leaves you stuck in two-wheel drive when you need traction the most? A failing Transfer Case Control Module (TCCM) is often the culprit, leaving your capable truck or SUV feeling powerless. This isn’t just an inconvenience; it’s a reliability issue. Get back in control with our fully Programmed 24243085 Transfer Case Control Module, the definitive, hassle-free solution to restore your vehicle’s all-terrain capability.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty TCCM is the likely cause. This module is the direct-fit, pre-programmed fix for:
- ‘Service 4WD’ or ‘Service Four Wheel Drive’ message on the instrument cluster
- Inability to shift between 2HI, 4HI, and 4LO
- Selector switch lights are blinking or not illuminating at all
- Audible clicking or grinding from the transfer case area during attempted shifts
- Diagnostic Trouble Codes (DTCs) such as C0306, C0321, C0327, or C0569
Instead of paying for expensive diagnostics and programming fees at a dealership, our solution arrives at your door ready for installation. We take your vehicle’s VIN and flash the module with the latest, most stable software from GM, ensuring it communicates perfectly with your truck’s systems right out of the box.
Features & Benefits
- ✔ Plug & Play Installation: This module is professionally programmed to your specific VIN. No additional dealership visit is required, saving you significant time and money.
- ✔ Updated GM Software: We flash each unit with the newest software updates, which often correct the factory flaws that caused the original module to fail.
- ✔ Restored 4×4 Functionality: Regain complete and reliable control over your vehicle’s four-wheel-drive system for all-weather safety and off-road capability.
- ✔ Guaranteed Compatibility: This is a direct replacement for a wide range of original part numbers, including 24261367, 12588096, 24239190, and more. Please see our full fitment list.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician with over two decades of experience, I can’t stress this enough: on these GM platforms, the TCCM is not a simple swap. It’s a smart module that is tied directly to your vehicle’s specific options, from the engine and transmission to the type of transfer case installed. Installing a used or non-programmed module is a recipe for failure. It simply won’t communicate with the BCM (Body Control Module) and other systems, resulting in the exact same ‘Service 4WD’ light and a non-functional system. Our pre-programming service eliminates this entire headache. We ensure the Programmed 24243085 Transfer Case Control Module you receive is the electronic equivalent of the one that came from the factory, but with better, more reliable software.
Frequently Asked Questions
Why do you need my vehicle’s VIN?
Your Vehicle Identification Number (VIN) allows us to flash the module with the exact software and calibrations specific to your truck’s configuration (engine, transmission, transfer case model, etc.). This step is essential for a true plug-and-play installation and ensures all systems work together correctly.
Is this part difficult to install?
For most of the listed GM trucks and SUVs, the TCCM is located on the driver’s side of the dashboard, often behind the lower dash panel near the steering column. It is typically held in by a few bolts and has several electrical connectors. For someone with basic mechanical skills, it is a straightforward replacement that can be done in under an hour.
What happens if I install a module that isn’t programmed?
A non-programmed module will not work. Your vehicle’s computer systems will not recognize it, and your 4WD system will remain inoperative. You will still have the ‘Service 4WD’ light and will eventually need to have the module programmed by a dealership or a shop with advanced tools, defeating the purpose of a DIY repair.
How can I be sure my TCCM is the problem?
While other issues like a faulty encoder motor or selector switch can cause 4WD problems, the symptoms listed above (Service 4WD light, no response from switch, specific DTCs) are classic signs of TCCM failure. This Programmed 24243085 Transfer Case Control Module is the most common and effective solution for these specific electronic symptoms.
What is the warranty on this part?
This unit is backed by our one-year replacement warranty, giving you confidence in your repair.