Is that frustrating “Service 4WD” light staring back 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? As a technician with over two decades of experience under the hood of GM trucks, I’ve seen this exact issue hundreds of times. The problem often isn’t a major mechanical failure, but rather the electronic brain of the system: the Transfer Case Control Module (TCCM).
This isn’t just a replacement part; it’s a complete, hassle-free solution. We take a genuine OEM-spec TCCM and program it with the latest GM software updates specifically for your truck’s Vehicle Identification Number (VIN). This means you can skip the expensive trip to the dealership for programming. When it arrives at your door, it’s ready for a straightforward, plug-and-play installation, restoring the reliable four-wheel-drive performance your truck was built for.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Sierra with a classic “Service 4WD” light. He’d already replaced the transfer case encoder motor—a common but often misdiagnosed part—with no luck. He was frustrated and out a few hundred dollars. I hooked up my scan tool and found a U0102 code: Lost Communication with Transfer Case Control Module. Instead of throwing more parts at it, we checked the TCCM connections and power. Everything was fine. The module itself had failed internally. We installed a pre-programmed TCCM like this one, and in 15 minutes, the 4WD system was fully operational. A proper diagnosis saved him from potentially replacing the entire transfer case.
Is Your 4×4 System Acting Up?
A failing TCCM can cause a range of confusing 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 into or out of 4-High, 4-Low, or 2WD.
- ✔ The 4WD selector switch lights don’t illuminate or flash without engaging.
- ✔ The vehicle feels like it’s stuck in 4WD, causing binding on dry pavement.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0327, C0398, or U0102.
A Straightforward Guide to Installation
You don’t need to be a master mechanic to replace this module. With basic hand tools, you can get your truck back to 100% in under 30 minutes. This is a common repair for DIYers looking to save on labor costs.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the TCCM: On most GM trucks and SUVs of this era, the TCCM is located on the driver’s side of the dashboard, up and to the left of the brake pedal, often mounted to a metal bracket.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Then, unbolt the module from its mounting bracket (typically two small bolts or nuts).
- Install the New Module: Bolt your new, pre-programmed TCCM into place. Reconnect the electrical connectors, ensuring they click securely into position.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test the 4WD selector switch, cycling through all modes (2WD, 4-Hi, Auto, 4-Lo) to confirm proper operation. The “Service 4WD” light should be gone.
Verified Fitment for Your GM Truck or SUV
This programmed 2008-2013 Avalanche 1500 TCCM is a direct replacement for part number 24249095 and is also compatible with a wide range of other GM part numbers and vehicles. We guarantee compatibility when you provide your VIN. It fits the following models:
- Chevrolet Avalanche 1500: 2008-2013
- Chevrolet Silverado 1500/2500/3500: 2007 (New Body Style) – 2014
- Chevrolet Suburban 1500/2500: 2008-2014
- Chevrolet Tahoe: 2008-2014
- GMC Sierra 1500/2500/3500: 2007 (New Body Style) – 2014
- GMC Sierra Denali / 2500 / 3500: 2007-2014
- GMC Yukon / Yukon XL 1500 / Yukon XL 2500: 2007-2014
Note: After purchase, please send us a message with your vehicle’s 17-digit VIN to ensure we program the module perfectly for your specific options.
Frequently Asked Questions
Why do you need my VIN?
Your vehicle’s VIN allows us to program the TCCM with the exact software and calibrations from GM for your specific truck, including transmission type, axle ratio, and transfer case model (RPO code). This ensures seamless, plug-and-play functionality.
Is this a new or used part?
This is a high-quality, tested module that has been inspected and prepared to meet or exceed OEM specifications. It is then freshly programmed with the latest software for your vehicle.
Do I need any special tools for installation?
No special tools are required. Basic hand tools like a socket set and a screwdriver are all you need. Since the module comes pre-programmed, you do not need a dealership scan tool.
What if the “Service 4WD” light is still on after installation?
While the TCCM is the most common cause, the light can also be triggered by a faulty encoder motor, a bad selector switch, or wiring issues. If the problem persists, we recommend a full diagnostic scan to check for other codes.
Which part numbers does this module replace?
This module is a direct replacement for part numbers 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878.