Restore Your Truck’s 4×4 Capability Instantly
Is the dreaded “Service 4WD” light glaring at you from the dash of your 2008-2013 Chevrolet Avalanche 1500? Are you unable to switch between 2WD and 4WD, leaving you unprepared for bad weather or tough terrain? You’ve likely pinpointed the problem: a failed Transfer Case Control Module (TCCM). This isn’t just an annoyance; it’s a critical failure that compromises your truck’s utility and safety. This module is the brain of your four-wheel-drive system, and when it fails, your truck is stuck.
Forget the expensive and time-consuming trip to the dealership. We offer a direct, effective solution. This genuine replacement TCCM, compatible with part number 24239190, arrives at your door fully programmed with the latest GM software updates. All we need is your vehicle’s VIN during checkout. This ensures a true plug-and-play installation, restoring full function to your 4WD system the moment you install it. Get back the all-terrain confidence you depend on.
A Technician’s Notebook: The Unresponsive 4WD Switch
I remember a 2011 Sierra 1500 that rolled into my bay last winter. The owner was frustrated because his 4WD was completely unresponsive. The indicator lights on the switch wouldn’t even light up. He’d already replaced the dash switch, thinking that was the easy fix. After confirming the transfer case encoder motor had power and was mechanically sound, my scanner pointed to a classic case of U0102 – Lost Communication with Transfer Case Control Module. The TCCM was dead to the world. In my 20+ years, I’ve seen hundreds of these failures, often due to voltage spikes or internal component degradation. We installed one of our pre-programmed modules, and the 4WD system came back to life instantly. No dealer re-flash, no extra labor charges—just a solid, reliable fix that had him out the door in under 30 minutes.
Is Your Truck Exhibiting These 4WD Faults?
A failing TCCM can cause a variety of symptoms. If you’re experiencing any of the following, this module is the likely solution for your 2008-2013 Avalanche 1500 TCCM issues:
- ✔ “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster.
- ✔ Inability to shift the transfer case into or out of 4-High, 4-Low, or 2-Wheel Drive.
- ✔ 4WD selector switch lights are inoperative or flashing.
- ✔ The vehicle is stuck in a single drive mode (e.g., stuck in 4WD).
- ✔ Diagnostic Trouble Codes (DTCs) stored, such as C0327, C0398, or U0102.
DIY-Friendly Installation: A Step-by-Step Guide
You don’t need to be a master mechanic to replace your TCCM. With basic hand tools, you can have your 4WD system working again quickly. This is a common repair for DIYers and professionals alike.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most GM trucks of this era, the TCCM is located under the driver’s side of the dashboard, to the left of the steering column. It’s a small black box with several electrical connectors.
- Remove the Old Module: Carefully depress the locking tabs on each electrical connector and pull them straight out. Then, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed TCCM onto the bracket. Firmly plug in the electrical connectors until they click securely into place.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and test the 4WD selector switch to confirm that all modes are engaging correctly. The “Service 4WD” light should now be off.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for multiple part numbers and is guaranteed to fit a wide range of General Motors vehicles. Please verify your model and year below. This part replaces the following compatible part numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, 24252878.
- Chevrolet Avalanche 1500: 2008-2013
- Chevrolet Silverado 1500/2500/3500: 2007 (New Body Style), 2008-2014
- Chevrolet Suburban 1500/2500: 2008-2014
- Chevrolet Tahoe: 2008-2014
- GMC Sierra 1500/2500/3500: 2007 (New Body Style), 2008-2014
- GMC Sierra Denali / 2500 / 3500: 2007-2014
- GMC Yukon & Yukon XL 1500/2500: 2007-2014
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. This is the biggest benefit of our service. We program the module to your vehicle’s specific VIN before we ship it. This makes the installation plug-and-play, saving you hundreds in dealership fees.
Where do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive this information for programming.
What is the location of the TCCM on a 2010 Silverado?
The location is consistent for most compatible models, including the 2010 Silverado. You will find it mounted to a bracket under the dashboard, to the left of the steering column.
Will this fix a ‘Service 4WD’ light?
In the vast majority of cases where the TCCM is the faulty component, yes. If your vehicle is showing symptoms like an inoperative 4WD switch or communication error codes for the TCCM, this module is the correct repair.
Is this a new or used part?
This is a high-quality, tested, and verified recycled OEM part that has been inspected for performance and programmed with the latest software available for your vehicle. It provides OEM function without the high dealer cost.