Restore Full Control Over Your 4×4 System

Is your truck flashing a “Service 4WD” message on the dash? Are you unable to shift between 2WD, 4-High, or 4-Low? A failing Transfer Case Control Module (TCCM) is often the culprit, leaving you without the crucial four-wheel-drive capability you depend on. This isn’t just an inconvenience; it’s a reliability issue that can compromise your safety in bad weather or your ability to get the job done. This module is the definitive solution to restore your truck’s essential functions and give you back complete control.

Common Symptoms & Your Direct-Fit Solution

If you’re experiencing any of the following issues, this module is designed to be your solution. A faulty TCCM can manifest in several ways, including:

• “Service 4WD” or “Service Four Wheel Drive” warning light is on
• Inability to switch between 2WD, 4HI, and 4LO
• Selector switch lights are blinking or not illuminating correctly
• Grinding or clunking noises when attempting to shift the transfer case
• Diagnostic Trouble Codes (DTCs) such as C0306, C0327, C0374, or U-codes indicating a loss of communication

Our programmed transfer case control module is the answer. We eliminate the guesswork and the expensive trip to the dealership. By flashing the unit with the latest GM software updates and coding it specifically to your vehicle’s VIN, we deliver a part that is truly plug-and-play.

Features & Benefits

• ✔ VIN-Programmed for Your Truck: Arrives ready for installation with no additional programming required. Just provide your VIN at checkout, and we handle the rest.
• ✔ Plug-and-Play Installation: Designed to be a direct replacement for the original module, making the swap straightforward for a DIYer or professional technician.
• ✔ Updated GM Software: We flash each module with the newest software from General Motors, ensuring optimal performance and correcting known factory bugs.
• ✔ Restored 4WD Functionality: Regain reliable and crisp shifting between all transfer case ranges, ensuring your truck is ready for any terrain or weather condition.
• ✔ Cost-Effective Solution: Avoid the high costs and scheduling hassles of a dealership service appointment by installing this pre-programmed unit yourself.
• ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.

An Expert’s Note on VIN Programming

In modern trucks like your Sierra or Silverado, components don’t just work in isolation—they communicate. The TCCM constantly talks to the Engine Control Module (ECM), Body Control Module (BCM), and other systems over a complex data network. VIN programming is critical because it tells the new module exactly what vehicle it’s in, including the specific transfer case model (RPO code), axle ratios, and other options. Skipping this step is like hiring a new employee without telling them their job title. A generic, non-programmed module will cause communication errors, DTCs, and will simply not function correctly. Our pre-programming service ensures your new TCCM integrates seamlessly, just like the original part from the factory.

Don’t let a faulty module sideline your capable truck. This programmed transfer case control module is the most reliable and efficient way to get your 4×4 system back in perfect working order. By matching it to your VIN, we ensure a perfect electronic handshake with your vehicle’s systems, restoring the performance and dependability you expect from your GM truck or SUV. This is the fix that gets you back on the road, trail, or job site with confidence. When you need a reliable 4×4 system, you need a reliable programmed transfer case control module that is built to last.

Frequently Asked Questions

What is a TCCM and what does it do?

The TCCM, or Transfer Case Control Module, is a small computer that acts as the brain for your vehicle’s four-wheel-drive system. It receives input from the driver’s selector switch and various sensors to electronically command the transfer case motor to shift between 2WD, 4HI, and 4LO.

Why is VIN programming so important for this part?

VIN programming is essential because it configures the module to the specific options and hardware of your truck, such as the exact transfer case model (RPO code NQH, NQF, etc.) and other vehicle systems. Without it, the module cannot communicate correctly with the rest of the vehicle, leading to malfunction and error codes.

Is this a plug-and-play installation?

Yes. Because we program the module to your specific VIN before shipping, it arrives ready to be installed. Simply disconnect the battery, swap the old module with the new one, and reconnect the battery. No trip to the dealer for programming is required.

How do I provide my VIN?

After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically find your VIN on the driver’s side dashboard (visible through the windshield) or on the sticker in the driver’s side door jamb.

Which part numbers does this module replace?

This module is a direct replacement for a wide range of part numbers, including 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878.

What happens if I install it without programming?

An unprogrammed module will not work. It will fail to communicate with your vehicle’s other computers, and your 4WD system will remain inoperative. Our mandatory VIN programming service prevents this issue entirely.

Product Details

Category: Transfer Case Control Module (TCCM)

eBay Item ID:

To program your module, we require your full 17-digit VIN. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it.

Shipping

• Processing Time:
  Reliably shipped within 2-3 business days.

Warranty

Enjoy peace of mind with a one-year replacement warranty on this part, effective from the date you receive it. Labor costs are not covered.

If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience.

Return Address:

Highway71autoparts

9131 Highway 71 NE
Spicer, MN, 56288