Is Your Truck’s 4WD Unreliable?
When the “Service 4WD” light illuminates on your dash, it’s more than an annoyanceโit’s a loss of your truck’s core capability. Whether you’re unable to shift into 4-High for a snowy road or stuck in a mode you don’t need, a failing Transfer Case Control Module (TCCM) can sideline your vehicle’s most important feature. This isn’t just about a light; it’s about having the confidence that your Silverado, Sierra, or Suburban will perform when you need it most. Get back in control with a solution designed to restore your four-wheel drive system to perfect working order.
Common Symptoms & Your Direct Solution
A faulty TCCM is the central point of failure for many 4×4 issues. If you’re experiencing any of the following, this module is the definitive fix:
- Inability to switch between 2WD, 4-Hi, and 4-Lo
- The “Service 4WD” or “Service Four Wheel Drive” message is constantly on
- Selector switch lights are blinking or not illuminating at all
- Diagnostic Trouble Codes (DTCs) such as C0306, C0327, C0374, or U-codes pointing to a loss of communication
This GM Transfer Case Control Module 24242480 is the answer. It arrives at your door pre-programmed to your vehicle’s specific VIN, eliminating the need for an expensive trip to the dealership for programming. It’s a true plug-and-play solution that gets you back on the road, trail, or job site quickly and correctly.
Features & Tangible Benefits
- โ VIN-Specific Programming: We flash the module with the latest GM software updates using your VIN. This ensures perfect communication with your truck’s other systems, just like the original.
- โ Eliminate Dealership Hassles: No need to pay for expensive diagnostic and programming labor. This module is ready for installation right out of the box.
- โ Restored 4×4 Functionality: Regain complete and reliable control over your transfer case. Shift smoothly and confidently, knowing your 4WD system is ready for any condition.
- โ Direct-Fit Replacement: Engineered to match the original form, fit, and function for a wide range of GM trucks and SUVs. See our comprehensive fitment list to confirm compatibility.
- โ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician, I’ve seen countless 4WD issues caused by improperly matched modules. Simply installing a used TCCM from another truck rarely works. Why? Because GM configures these modules based on specific vehicle options, like the exact type of transfer case installed (e.g., RPO codes NQH or NQF). Our VIN-programming process isn’t just a convenienceโit’s a critical step that ensures the module knows exactly what hardware it’s controlling. This prevents communication errors and guarantees a lasting, reliable repair the first time.
Don’t settle for a non-functional 4×4 system. By providing us with your VIN upon purchase, you are ensuring a precise, reliable, and straightforward repair. This is the most effective way to solve your 4WD problems and restore the full capability of your trusted GM vehicle. This GM Transfer Case Control Module 24242480 is your path to a dependable ride.
Frequently Asked Questions
Why do I need to provide my vehicle’s VIN?
Your VIN (Vehicle Identification Number) allows us to program the module with the exact software and calibrations specific to your truck’s options, such as the engine, transmission, and transfer case model. This ensures seamless integration and proper function without any additional programming required.
Is this a true plug-and-play installation?
Yes. Because the GM Transfer Case Control Module 24242480 arrives pre-programmed to your VIN, you simply need to disconnect the old module and install this one. In most cases, no further relearn procedures or dealer visits are necessary.
Will this fix the “Service 4WD” light on my dashboard?
If the warning light is caused by a failed or failing TCCM, then yes, this part is the correct solution. It directly resolves the communication errors and internal faults within the module that typically trigger that specific warning message.
My old module has a different part number on it. Will this work?
Yes, this module is a compatible replacement for a wide range of original part numbers, as listed in the description. GM frequently supersedes part numbers with newer, updated versions. As long as your vehicle is on our fitment list, this module will function correctly.
How do I find my transfer case RPO code (like NQH)?
You can find your vehicle’s RPO (Regular Production Option) codes on the silver sticker located in the glove box. It will be a long list of three-character codes. While our VIN programming handles this, it’s good information to know for your vehicle.
What is the warranty for this part?
This unit is backed by our one-year replacement warranty.