Restore Your Truck’s 4×4 Capability with a Plug-and-Play Solution
Is the dreaded “Service 4WD” light glaring at you from the dashboard of your Chevy Avalanche? Are you unable to switch between 2WD and 4WD, leaving you unprepared for bad weather or tough terrain? You’re not just dealing with an annoyance; you’re facing a loss of your truck’s core functionality. The Transfer Case Control Module (TCCM) is the electronic brain of your four-wheel-drive system, and when it fails, it can leave you stranded in the wrong drive mode. This isn’t a problem you can ignore, especially when you depend on your truck’s versatility.
We offer a dependable and straightforward fix: a replacement TCCM, part number 24249095, that arrives at your door fully programmed to your vehicle’s specific VIN. Forget about costly dealership visits, expensive programming fees, and the hassle of coordinating software flashing. We handle the complex part for you. Simply provide your VIN at checkout, and we’ll load the latest, most stable GM software onto the module. This ensures seamless communication between the TCCM and your truck’s other computers, restoring the reliable 4×4 performance you expect from your 2008-2013 Avalanche 1500 TCCM.
From the Diagnostic Bay: A Common 4×4 Misdiagnosis
A customer once brought in a 2011 Silverado with a classic “Service 4WD” light and no response from the selector switch. He had already replaced the transfer case encoder motor—a common guess—but the problem persisted. After spending hundreds on the wrong part, he was frustrated. In my shop, the first thing I did was hook up my scan tool. I saw a U0102 code: ‘Lost Communication With Transfer Case Control Module’. The encoder motor was fine; the TCCM simply wasn’t talking to the rest of the truck. This is a scenario I’ve seen dozens of times. The TCCM is often the root cause, and replacing it with a pre-programmed unit like this one is the correct, one-time fix that gets the truck back to 100%.
Is Your Truck Showing These Symptoms?
A failing TCCM can manifest in several ways. If you’re experiencing any of the following, this module is very likely the solution you need:
- ✔ “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 2WD.
- ✔ The 4×4 selector switch lights don’t illuminate or flash without engaging.
- ✔ Diagnostic Trouble Codes (DTCs) related to the transfer case system, such as C0327, C0374, or U0102.
- ✔ A noticeable clunk or delay when the transfer case does manage to shift.
- ✔ The system defaults to and gets stuck in one mode, often 2WD.
A Straightforward Guide to Installation
One of the best features of our programmed 2008-2013 Avalanche 1500 TCCM is its simple, DIY-friendly installation. No special tools or software subscriptions are needed. You can do this in your own garage in under 30 minutes.
- Safety First: Disconnect the negative terminal from your truck’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 a few electrical connectors.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs, so be sure to depress them before pulling. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed TCCM into place. Firmly reconnect the electrical connectors, ensuring they click and lock securely.
- Reconnect and Test: Reconnect the negative battery terminal. Start the truck and test the 4×4 selector switch. The warning light should be off, and you should be able to cycle through all drive modes smoothly.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM trucks and SUVs. It is compatible with the original part number 24249095 and interchanges with several others. Please verify your vehicle is on the list below for guaranteed fitment.
SIERRA 1500 PICKUP 07 (new style), 08-13
SIERRA 2500/3500 PICKUP 07 (new style), 08-14
SIERRA DENALI 07-10, 2500/3500 11-14
SILVERADO 1500 PICKUP 07 (new style), 08-13
SILVERADO 2500/3500 PICKUP 07 (new style), 08-14
SUBURBAN 1500 08-14
SUBURBAN 2500 08-13
TAHOE 08-14
YUKON & YUKON XL 1500 07 (Denali), 08-14
YUKON XL 2500 08-13
Note: After purchase, please send us a message with your 17-digit VIN to ensure we program the module correctly for your specific vehicle options before shipment.
Frequently Asked Questions
What exactly does the Transfer Case Control Module do?
What exactly does the Transfer Case Control Module do?
The TCCM is a small computer that acts as the brain for your 4×4 system. It takes the input from your selector switch (the dial or buttons on your dash) and sends commands to the encoder motor on the transfer case to physically shift gears between 2WD, 4-HI, and 4-LO.
Why is VIN programming so important?
Programming the module with your VIN ensures it has the correct software for your truck’s specific options (like engine, transmission, and transfer case type). This guarantees seamless communication with other vehicle computers and avoids compatibility issues. Our pre-programming service saves you a trip to the dealer and associated costs.
Is this a difficult part for a DIYer to install?
Not at all. The installation is very straightforward and typically takes less than 30 minutes with basic hand tools. Since our module comes pre-programmed, it’s a true plug-and-play repair. Just swap the old one out for the new one.
How do I provide my VIN after I order?
After completing your purchase, simply send us a message through the platform with your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive the VIN to program the module.
Will this part fix my ‘Service 4WD’ light for good?
If the light is caused by a failed or malfunctioning TCCM, then yes, this part is the definitive solution. The symptoms listed above are strong indicators of TCCM failure. This module resolves the most common cause of that warning light on these GM trucks.
What part numbers is this compatible with?
This module is a direct replacement for part number 24249095 and is also compatible with the following part numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, and 24252878.