Is that frustrating “Service 4WD” light glaring at you from the dash of your Yukon XL 2500? Are you unable to switch between 2WD and 4WD, leaving you unprepared for bad weather or tough terrain? You’ve come to the right place. As a technician with over two decades of experience, I’ve seen this exact issue hundreds of times on GM trucks and SUVs. The problem is almost always a failed Transfer Case Control Module (TCCM), and this pre-programmed unit is the most reliable and straightforward solution available.
The TCCM is the electronic brain of your vehicle’s four-wheel-drive system. It takes your command from the dash switch and tells the transfer case motor exactly what to do. When it fails, you’re left with a system that’s unresponsive and unreliable. This isn’t just an inconvenience; it’s a safety concern. Don’t get stuck. This module restores the full functionality you depend on.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Sierra 2500 with an intermittent “Service 4WD” light. It would only act up after driving for 30+ minutes. We checked the encoder motor and the dash switch—both were fine. A scan showed a U0102 code, ‘Lost Communication with Transfer Case Control Module’. On these trucks, the TCCM is mounted to the frame rail, but on this body style, it’s under the dash. After ruling out wiring issues, we suspected the TCCM was failing internally due to heat soak. We swapped in a new module, and the problem was solved instantly. This highlights how a seemingly complex electronic issue often points back to this single, critical component.
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 for your 2008-2013 Yukon XL 2500 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-Hi, 4-Lo, or 2-Hi.
- ✔ The 4WD indicator lights on the selector switch are blinking or not illuminating at all.
- ✔ A grinding or clunking noise when attempting to shift the transfer case.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as C0327, C0398, or the common communication code U0102.
A Straightforward Guide to Installation
One of the best features of this part is the simple installation. Since we program it to your VIN before shipping, you won’t need a trip to the dealer. This is a job most DIYers can handle in under an hour with basic tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: On your 2008-2013 Yukon XL 2500, the TCCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs, so be gentle. Then, remove the nuts or bolts holding the module bracket in place.
- Install the New Module: Mount your new, pre-programmed TCCM in the same location and secure it with the original hardware.
- Connect and Test: Plug the electrical connectors firmly into the new module. Reconnect your battery, start the vehicle, and test the 4WD selector switch. The “Service 4WD” light should be gone, and all functions restored!
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of GM trucks and SUVs, ensuring perfect function. It replaces part numbers: 24261367, 12588096, 24239190, 24240487, 24241143, 24241970, 24242480, 24243084, 24243085, 24249095, and 24252878. It fits the following vehicles:
- GMC Sierra / Chevrolet Silverado 1500, 2500, 3500: 2007 (New Body Style) – 2014
- GMC Sierra Denali: 2007 – 2014
- GMC Yukon / Yukon XL 1500 & 2500: 2007 – 2014
- Chevrolet Avalanche 1500: 2008 – 2013
- Chevrolet Suburban 1500 & 2500: 2008 – 2014
- Chevrolet Tahoe: 2008 – 2014
IMPORTANT: After purchasing, please provide your Vehicle Identification Number (VIN) so we can program the module with the latest GM software for your specific vehicle. This ensures a true plug-and-play experience.
Why does this module need my VIN?
Your VIN allows us to load the exact software and calibrations your 2008-2013 Yukon XL 2500 requires. This ensures seamless communication with your truck’s other computers (like the ECU and BCM) and proper operation of the 4WD system, eliminating the need for any additional programming by a dealer.
Is this a difficult part to replace myself?
Not at all. For most owners with basic hand tools, this is a very manageable DIY job. The module is located inside the cabin under the dashboard, making it accessible without needing to lift the vehicle. Our step-by-step guide above should walk you through it.
Will this fix my ‘Service 4WD’ light?
In the vast majority of cases, yes. The TCCM is the most common point of failure in the GM 4WD electronic system for these model years. If you are experiencing the symptoms listed above, this module is the definitive fix.
What happens if I don’t replace a failing TCCM?
You will be unable to use your four-wheel-drive system, which can be a major issue in snow, mud, or when towing. The warning light will also remain on your dash. In some rare cases, a failing module can cause a parasitic battery drain.
Is this part compatible with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 12588096, 24261367, 24239190, and many others listed in the description. We ensure the one you receive is 100% compatible.