Restore Your Truck’s 4WD Capability Instantly
Is the dreaded “Service 4WD” light glaring at you from the dashboard? Are you unable to switch between 2WD and 4WD, leaving you unprepared for bad weather or tough terrain? A faulty Transfer Case Control Module (TCCM) is the most common culprit, and this is your definitive, hassle-free solution. This module is the electronic brain of your four-wheel-drive system, and when it fails, it compromises the rugged capability you rely on. We solve this problem by providing a high-quality replacement Programmed 24239190 Transfer Case Control Module that arrives at your door ready for a simple, plug-and-play installation.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCCM is likely to blame:
- “Service 4WD” or “Service Four Wheel Drive” message on the dash
- Inability to shift into or out of 4-High or 4-Low
- Indicator lights for the 4WD switch are blinking or not working
- Unusual grinding or clunking noises when attempting to shift the transfer case
- Diagnostic Trouble Codes (DTCs) such as C0306, C0327, C0374, or U1000
Instead of paying for expensive diagnostic fees and programming charges at a dealership, this module is your all-in-one fix. We take the guesswork out of the repair by professionally programming the unit to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures perfect communication with your truck’s other systems, just like the original.
Features & Benefits
- โ VIN-Programmed for Your Truck: Simply provide your VIN after purchase, and we handle the rest. This eliminates the need for expensive scan tools or a trip to the dealer, saving you time and money.
- โ True Plug-and-Play Installation: Because the module is pre-configured for your exact vehicle, installation is as simple as locating the old module, unplugging it, and plugging this one in.
- โ Loaded with the Latest GM Software: Your new TCCM comes flashed with the most recent updates from General Motors, which often correct the underlying issues that caused the original part to fail.
- โ Broad Compatibility: This single unit is a direct replacement for a wide range of original part numbers, ensuring you get the correct component for a reliable repair.
- โ Restore Full Functionality: Regain complete and dependable control over your 4WD system. Be ready for any job, any weather, and any road with confidence.
- โ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Insight: Why VIN Programming is Non-Negotiable
As a technician, I’ve seen countless DIYers buy a used TCCM from a junkyard only to find it doesn’t work. Why? Because these modules are not one-size-fits-all. The TCCM needs to know your vehicle’s specific configurationโthe engine, transmission, axle ratios, and even tire sizeโto operate the transfer case correctly. Our VIN programming process writes your truck’s unique DNA onto the module. This ensures it communicates flawlessly on the vehicle’s data network, engages the transfer case motor precisely, and provides the reliable performance you expect from your GM truck or SUV. Skipping this step isn’t cutting a corner; it’s a guaranteed path to failure. We do it right, so your repair is done once.
Don’t let a faulty module sideline your truck. Take control of the repair with this professionally Programmed 24239190 Transfer Case Control Module and restore the full, rugged capability of your vehicle.
Frequently Asked Questions
How does the VIN programming process work?
It’s simple. After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). Our technicians will use your VIN to flash the module with the exact software and configuration for your specific vehicle before we ship it to you.
Is this a difficult part to install?
Because the unit arrives pre-programmed, the physical installation is very straightforward for anyone with basic mechanical skills. The TCCM is typically located under the driver’s side of the dashboard. It involves removing a few trim panels, unplugging the electrical connectors from the old module, unbolting it, and installing the new one in its place. No special tools are required.
What happens if I forget to provide my VIN?
We cannot ship your order without your VIN. The programming is essential for the module to function in your vehicle. We will contact you to remind you, but shipping will be held until we receive the necessary information to complete the programming service.
Will this definitely fix my “Service 4WD” light?
The TCCM is the most frequent cause of the “Service 4WD” light and the related symptoms on these GM trucks and SUVs. While it is the most likely solution, we always recommend confirming the diagnosis. Other potential issues could be a faulty encoder motor, a bad selector switch, or wiring problems. However, if your diagnostics point to the module, this Programmed 24239190 Transfer Case Control Module is the correct and most reliable fix.
How do I know if this fits my vehicle?
Please review the detailed fitment list provided in this listing. This module fits a wide range of GM trucks and SUVs, including various years of the Sierra, Silverado, Tahoe, Suburban, Yukon, and Avalanche. Matching your vehicle and year to the list ensures compatibility.