Regain Control of Your 4WD System
As a technician with over two decades of experience, I’ve seen countless Sierra and Silverado owners come into the shop frustrated by a stubborn “Service 4WD” light and a truck that won’t shift into four-wheel drive. More often than not, the culprit is a failed Transfer Case Control Module (TCCM). This isn’t just an annoyance; it compromises your truck’s ability to handle tough weather, challenging job sites, or off-road trails. This replacement TCCM, part number 24240487, is the definitive solution to restore your vehicle’s all-terrain functionality and peace of mind.
This isn’t just a part in a box. We take the hassle out of the repair by pre-programming the module to your truck’s specific Vehicle Identification Number (VIN) before it even leaves our facility. This critical step ensures seamless communication with your truck’s other computers, eliminating the need for an expensive trip to the dealership for programming. It’s a true plug-and-play fix that gets you back on the road, fully capable, in no time.
From the Diagnostic Bay: The Case of the Stuck Sierra
A customer brought in his ’11 Sierra 1500, panicked because a big snowstorm was forecast and his 4WD had just quit. The switch lights were dead and the “Service 4WD” message was glaring at him from the dash. We first checked the easy stuff: fuses and the dash switch. Both were fine. A scan tool showed a U0102 code—Lost Communication with Transfer Case Control Module. After verifying power and ground at the TCCM connector under the driver’s side dash, we confirmed the module itself was the point of failure. A new, pre-programmed 2007-2013 Sierra 1500 TCCM had him back in business in under 30 minutes, ready to face the winter weather with confidence.
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 likely the solution you need. In my shop, I’ve seen these issues resolved hundreds of times by replacing the TCCM.
- âś” “Service 4WD” or “Service Four Wheel Drive” message on the instrument cluster.
- âś” Inability to switch between 2WD, 4HI, and 4LO modes.
- âś” The 4WD selector switch lights are inoperative or flash without engaging.
- âś” Vehicle is stuck in one 4WD mode and will not disengage.
- âś” Diagnostic Trouble Codes (DTCs) such as C0327, C0306, or U0102 are present.
A Straightforward Guide to Installation
This is a repair that a confident DIYer can handle with basic tools. Because we program the module for you, the most complex part of the job is already done. Follow these steps for a successful installation of your 2007-2013 Sierra 1500 TCCM.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the Module: The TCCM is typically located under the driver’s side of the dashboard, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old TCCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed TCCM in the same location and securely plug in the electrical connectors. You’ll hear a click as they lock into place.
- Final Steps: Reinstall any dash panels you removed and reconnect the negative battery terminal. Start the truck and test the 4WD selector switch to confirm proper operation. The “Service 4WD” light should be gone.
Will This Fit My Truck?
This module is a direct-fit replacement for a wide range of GM trucks and SUVs. We guarantee compatibility if your vehicle is listed below. To ensure a perfect match, we program the module using your VIN. This part is a direct replacement for multiple part numbers, including: 24261367, 12588096, 24239190, 24240487, 24241143, and more.
- GMC Sierra 1500/2500/3500 & Denali: 2007 (New Body Style) – 2014
- Chevrolet Silverado 1500/2500/3500: 2007 (New Body Style) – 2014
- Chevrolet Avalanche 1500: 2008-2013
- Chevrolet Suburban 1500/2500: 2008-2014
- Chevrolet Tahoe: 2008-2014
- GMC Yukon & Yukon XL 1500/2500: 2007-2014
Choosing this pre-programmed 2007-2013 Sierra 1500 TCCM is the most efficient and reliable way to solve your four-wheel-drive problems and restore the rugged capability you depend on from your GM truck.
Frequently Asked Questions
Do I need to do any programming myself?
No. This TCCM is delivered to you fully programmed with the latest GM software updates. Simply provide your VIN at checkout, and we handle the rest. It arrives ready for plug-and-play installation.
What does the Transfer Case Control Module (TCCM) do?
The TCCM is the ‘brain’ of your 4WD system. It receives input from the dash switch and various sensors to command the transfer case encoder motor, which physically shifts your truck between 2WD, 4HI, and 4LO.
Where is this module located on my 2011 Sierra 1500?
On the 2007-2013 Sierra 1500, the TCCM is located on the driver’s side, up under the dashboard to the left of the steering column. Access typically requires removing the lower dash cover panel.
How do I provide my VIN for programming?
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 your VIN to perform the necessary programming.
Is this part compatible with other part numbers?
Yes, this module is a direct replacement for a range of GM part numbers, including 24261367, 12588096, 24239190, 24241143, 24241970, 24242480, and many others listed in the description.