Restore Your 4×4 Control and Confidence
If you’re staring at that frustrating ‘Service 4WD’ light on your 2008-2013 Suburban 2500’s dash, you’re not alone. As a technician with over two decades of experience, I’ve seen countless GM trucks and SUVs roll into my bay with the exact same issue: the Transfer Case Control Module (TCCM) has failed. This small electronic box is the brain of your four-wheel-drive system, and when it goes, you lose the ability to shift into 4-High or 4-Low, leaving you stuck in two-wheel drive—often at the worst possible time.
The common dealership solution involves a new module, a hefty bill, and hours of programming time. We eliminate that hassle. This is a direct-fit replacement TCCM, part number 24261367, that solves the problem efficiently. The best part? We program it specifically to your vehicle’s VIN before it ships. This means no extra tools, no expensive scan tool subscriptions, and no trip to the dealer. It arrives at your door ready for a simple, plug-and-play installation.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Sierra 2500, convinced he needed a new transfer case. The 4WD switch lights were blinking, and it wouldn’t engage. Another shop had quoted him over $2,500 for a transfer case replacement. I hooked up my scanner and found a U0102 code—Lost Communication with TCCM. Before condemning expensive hardware, I always check the module. I swapped in a known-good TCCM, and the system came back to life instantly. We installed a new, programmed module for him, and he drove away with a fully functional 4×4 system for a fraction of the cost. It’s almost always the module.
Common Signs of a Failing TCCM
- ✔ ‘Service 4WD’ or ‘Service Four Wheel Drive’ message on the instrument cluster.
- ✔ Inability to switch between 2WD, 4HI, or 4LO modes.
- ✔ The 4×4 selector switch lights blink but never stay solid.
- ✔ The system is stuck in one mode and will not disengage or engage.
- ✔ Diagnostic Trouble Codes (DTCs) such as U0102, C0327, or other communication errors related to the transfer case.
- ✔ A noticeable delay or clunking sound when the system attempts to shift.
A Straightforward Guide to Installation
Installing your new 2008-2013 Suburban 2500 TCCM is a job most DIYers can handle in under 30 minutes with basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most GM trucks and SUVs of this era, the TCCM is located on the driver’s side, up under 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 wiring harnesses from the old TCCM. They have release tabs that you’ll need to press. Once unplugged, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed TCCM in the same location. Securely plug in the wiring harnesses—you should hear a click as they lock into place.
- Final Step: Reconnect the negative battery terminal. Start the vehicle 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 guaranteed fit for the following vehicles, replacing a wide range of original part numbers including 12588096, 24239190, 24240487, and more. Please provide your VIN upon purchase to ensure perfect programming.
- AVALANCHE 1500: 2008-2013
- SIERRA 1500/2500/3500: 2007 (New Body Style) – 2014
- SIERRA DENALI: 2007-2010
- SIERRA DENALI 2500/3500: 2011-2014
- SILVERADO 1500/2500/3500: 2007 (New Body Style) – 2014
- SUBURBAN 1500: 2008-2014
- SUBURBAN 2500: 2008-2013
- TAHOE: 2008-2014
- YUKON & YUKON DENALI: 2007-2014
- YUKON XL 1500 & YUKON XL 2500: 2007-2014
Frequently Asked Questions
What does ‘pre-programmed’ mean?
It means we load the module with the latest GM-approved software that is specific to your vehicle’s VIN. This allows the module to communicate correctly with your truck’s other computers (like the ECM and BCM) right out of the box, eliminating the need for expensive dealer programming.
Do I need to send my old module back?
No, there is no core charge or need to return your old, faulty part. You can simply recycle it.
Where is this module located on my 2011 Suburban 2500?
The location is consistent across most of these models. You will find the TCCM mounted under the driver’s side dashboard, typically to the left of the steering column and above the emergency brake pedal.
What happens if I don’t provide my VIN?
Providing your Vehicle Identification Number (VIN) is essential. We cannot ship the module until we have your VIN to program it correctly. This step ensures a 100% plug-and-play installation and proper function of your 4WD system.
Is this compatible with part number 24249095?
Yes. This module is a direct replacement for a long list of GM part numbers, including 24249095, 24252878, 12588096, and all others listed in the product details. It will function identically to the original.