Restore Your 4WD System with a Plug-and-Play Solution
Is that frustrating “Service 4WD” light glowing on your 2007-2014 Yukon XL 1500’s dashboard? Are you unable to switch between 2WD and 4WD, or is your truck stuck in one mode? You’re not just losing capability; you’re losing peace of mind. As a technician with over two decades of experience, I’ve seen this countless times. The culprit is almost always a failed Transfer Case Control Module (TCCM), the electronic brain of your four-wheel-drive system.
The old way to fix this meant a new module, a tow truck, and a hefty bill from the dealership for programming. We’ve eliminated that entire hassle. This replacement TCCM, part number 24252878, arrives at your door fully programmed with the latest GM software updates, specifically matched to your vehicle’s VIN. There are no extra fees, no special tools, and no trips to the dealer. This is the direct, reliable fix that gets your truck’s 4×4 system operating correctly again.
A Technician’s Notebook: The Pre-Winter Rush
I remember a customer in a panic—his 2011 Sierra’s 4WD wouldn’t engage, and the first big snowstorm of the year was just two days away. The dash switch was dead, and the “Service 4WD” light was on. A quick scan showed communication loss with the TCCM. Instead of sending him to the dealer for a multi-day wait and a huge bill, we installed one of these pre-programmed modules. In under 30 minutes, right in his driveway, his 4×4 was back online. He had reliable traction for the storm, and we had another happy customer. That’s the power of a ready-to-install solution.
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 the likely solution:
- ✔ “Service 4WD” or “Service Four Wheel Drive” message on the dash
- ✔ Inability to shift into or out of 4-High or 4-Low
- ✔ 4WD selector switch has no lights or is unresponsive
- ✔ Vehicle is stuck in 2WD, 4WD, or Auto mode
- ✔ Diagnostic Trouble Codes (DTCs) stored, such as C0306, C0321, C0327, C0374, or U-series communication codes (e.g., U0102).
A Straightforward Guide to Installation
Replacing the TCCM on your Yukon XL 1500 is a job most DIYers can handle in their own garage. The module is typically located behind the lower dash panel to the left of the steering column.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Access the Module: Carefully remove the lower dash trim panel below the steering wheel. It’s usually held in by clips and a few screws.
- Locate the TCCM: Look for a small black or silver box with several electrical connectors. It will be mounted to a bracket.
- Disconnect and Remove: Unplug the electrical harnesses from the old module. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt your new, pre-programmed TCCM into place and securely reconnect all the electrical harnesses.
- Final Steps: Reinstall the lower dash panel and reconnect the negative battery terminal. Start the vehicle and test the 4WD selector switch to confirm proper operation.
Verified Vehicle Compatibility
This module is a direct replacement for part number 24252878 and is also compatible with part numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, and 24249095. It is guaranteed to fit the following vehicles:
- ✔ 2008-2013 Chevrolet Avalanche 1500
- ✔ 2007-2013 Chevrolet Silverado 1500
- ✔ 2007-2014 Chevrolet Silverado 2500/3500
- ✔ 2008-2014 Chevrolet Suburban 1500
- ✔ 2008-2013 Chevrolet Suburban 2500
- ✔ 2008-2014 Chevrolet Tahoe
- ✔ 2007-2013 GMC Sierra 1500
- ✔ 2007-2014 GMC Sierra 2500/3500
- ✔ 2007-2010 GMC Sierra Denali
- ✔ 2011-2014 GMC Sierra Denali 2500/3500
- ✔ 2007-2014 GMC Yukon & Yukon Denali
- ✔ 2007-2014 GMC Yukon XL 1500 & Denali
- ✔ 2008-2013 GMC Yukon XL 2500
Do I need to program this module?
Do I need to program this module?
No. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and the module will arrive ready for plug-and-play installation.
Where is the TCCM located on my 2007-2014 Yukon XL 1500?
The Transfer Case Control Module is typically found mounted to a bracket behind the lower dashboard panel, on the driver’s side to the left of the steering column.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is your car’s unique 17-digit serial number. We use it to load the exact GM software and calibrations for your specific vehicle’s options, ensuring perfect compatibility and function.
Will this fix my ‘Service 4WD’ light?
In the vast majority of cases, a faulty TCCM is the cause of this warning light and associated 4×4 issues. While other problems like a faulty encoder motor or selector switch can occur, this module is the most common point of failure and a critical first step in a proper repair.