Restore Your 4×4 System with a Plug-and-Play Solution
Is the dreaded “Service 4WD” light glaring at you from the dashboard of your GM truck or SUV? Are you struggling with a four-wheel-drive system that won’t engage, disengage, or seems to have a mind of its own? You’ve come to the right place. This Transfer Case Control Module (TCCM) is the definitive, hassle-free solution to restore your vehicle’s off-road and all-weather capability. We take the guesswork and dealership expense out of the equation by pre-programming this unit to your vehicle’s specific VIN before it ships. This isn’t just a replacement part; it’s a direct path to getting your truck’s essential systems back online. With our Programmed 24261367 TCCM, you’re not just fixing a problem—you’re restoring the confidence and reliability you depend on.
Common Symptoms & Your Direct-Fit Solution
A failing TCCM can manifest in several frustrating ways, often leading to diagnostic trouble codes (DTCs) like C0327, C0398, or a general loss of communication with the module. If you’re experiencing any of the following, this module is your solution:
- “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster
- Inability to switch between 2HI, 4HI, 4LO, or Auto modes
- Selector switch lights are blinking or not illuminating at all
- Unusual grinding or binding noises during shifts into or out of 4WD
- The 4×4 system seems to engage or disengage on its own
Instead of paying for expensive diagnostic time and programming fees at a dealership, this module arrives ready for a straightforward installation. Simply provide your VIN at checkout, and we handle the rest, ensuring a perfect match for your vehicle’s factory options.
Features & Tangible Benefits
- ✔ VIN-Specific Programming Included: We flash the module with the latest GM software calibrated specifically to your truck’s VIN. This ensures 100% correct operation of all 4WD functions right out of the box—no additional programming required.
- ✔ Eliminate Dealer Visits: Save hundreds of dollars and valuable time by skipping the trip to the dealership for programming. This is a true plug-and-play fix you can perform in your own garage.
- ✔ Direct OEM Replacement: Engineered to meet or exceed original equipment specifications for a perfect fit, seamless connection, and reliable, long-term performance. It is compatible with a wide range of part numbers, including 24261367, 12588096, 24239190, and more.
- ✔ Restore Full Functionality: Regain complete and reliable control over your vehicle’s transfer case, ensuring you have traction and power when you need it most, from slippery boat ramps to snowy roads.
- ✔ This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming: On these GM platforms, the TCCM is not a one-size-fits-all part. It must be programmed to know your vehicle’s specific RPO codes—things like the exact transfer case model (NQH, NQF), tire size, and axle ratio. Installing a non-programmed module will result in communication errors and a non-functional 4WD system. By providing a fully Programmed 24261367 TCCM, we eliminate this critical failure point, delivering a part that works exactly as the factory intended from the moment you plug it in.
Frequently Asked Questions
What exactly does the Transfer Case Control Module do?
The TCCM is the electronic brain for your vehicle’s four-wheel-drive system. It receives input from the driver’s selector switch and various vehicle sensors to command the transfer case motor, which physically shifts the vehicle in and out of 2WD and 4WD modes.
Why is VIN programming so important for this part?
VIN programming loads the correct software and calibration files for your specific vehicle’s options, such as the type of transfer case, axle ratio, and tire size. Without the correct programming, the module cannot communicate properly with other computers in the vehicle, and the 4WD system will not function correctly.
Is this a difficult part 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. Installation is typically straightforward for someone with basic mechanical skills, involving the removal of a few trim panels and disconnecting a few electrical connectors. Since our module is pre-programmed, no special tools are needed.
How do I provide my VIN after I purchase?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically reply to your order confirmation email or use the contact form on our website. We cannot ship your part until we receive your VIN to complete the programming.
Will this module fix my “Service 4WD” light?
In the vast majority of cases where the TCCM has failed, this part will be the complete fix and will clear the “Service 4WD” light. However, it’s always best to confirm the diagnosis, as other components like the selector switch or transfer case encoder motor can sometimes cause similar symptoms.