Get Your GMC Sierra Shifting Like New Again
As a technician with two decades of experience, I’ve seen firsthand the frustration a faulty Transmission Control Module (TCM) can cause in a dependable truck like the 2007-2013 GMC Sierra 1500. One minute you’re towing a load, the next you’re stuck in limp mode on the side of the road. This isn’t just an inconvenience; it’s a hit to your productivity and peace of mind. That’s why we offer this OEM-quality T42 TCM, part number 24230461, fully programmed to your truck’s specific VIN. This isn’t just a part; it’s a complete, ready-to-install solution designed to restore the crisp, reliable shifting you depend on.
Case Study: A Tricky Diagnosis
I remember a 2008 Sierra 1500 that came into my shop with what the owner described as ‘ghostly’ transmission problems. It would shift hard for a day, then be fine for a week. He’d already replaced a shift solenoid on a guess, but the problem persisted. After hooking up my scan tool, I noticed intermittent communication loss with the TCM—a classic sign of an internal electronic failure. We swapped in one of our VIN-programmed modules, and the problem was solved instantly. It wasn’t a mechanical failure inside the transmission; it was the brain telling it what to do. This simple swap saved him from a potential, and unnecessary, transmission rebuild.
Is Your Sierra Showing These Transmission Red Flags?
A failing TCM can mimic other, more serious transmission issues. Before you suspect a costly mechanical failure, check if your truck is exhibiting any of these common symptoms. A faulty Sierra 1500 Transmission Module is often the root cause.
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ The truck is stuck in one gear (often called ‘limp mode’).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid errors), or U0101 (Lost Communication with TCM).
- ✔ Unexplained drops in fuel economy or a transmission that seems to be overheating.
- ✔ The gear selector indicator on the dash may be blank or incorrect.
Why a Pre-Programmed Sierra 1500 Transmission Module is the Smart Fix
The biggest hurdle in replacing a modern TCM is the need for expensive, dealer-specific programming. Our solution eliminates that step entirely. We flash the module with the latest GM software updates using your vehicle’s VIN before it ever ships. This means no trip to the dealership, no extra programming fees, and no need for a high-end scan tool. It’s a direct-fit, plug-and-play repair that saves you both time and money, whether you’re a seasoned mechanic or a DIYer tackling the job in your driveway.
A Straightforward Guide to Installation
For most 2007-2013 Sierra 1500 models, this is a job you can complete in under 30 minutes with basic hand tools. The module is typically located in the engine bay for easy access.
- Safety First: Disconnect the negative terminal from your truck’s battery to prevent any electrical shorts and help reset the system.
- Locate the Module: On your Sierra, you’ll find the TCM mounted right next to the battery in the engine compartment.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New TCM: Mount the new, pre-programmed module in place and securely fasten the bolts. Reconnect the electrical harnesses until they click.
- Final Steps: Reconnect the negative battery terminal. While the module is plug-and-play, it’s good practice to use a basic scan tool to clear any stored DTCs from the vehicle’s memory. Start the truck and enjoy smooth shifting!
Verified Vehicle Compatibility
While this part is a perfect fit for the 2007-2013 GMC Sierra 1500, it is also designed to work with a wide range of other General Motors vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. This part is interchangeable with service numbers 24252114, 24234503, 24230461, and more. Key compatible models include:
- Chevrolet Silverado 1500 (2007-2013)
- Chevrolet Tahoe & Suburban (2007-2009)
- GMC Yukon & Yukon XL (2007-2009)
- Chevrolet Avalanche (2007-2008)
- Cadillac DTS (2006-2011)
- Chevrolet Impala (2006-2011)
- Hummer H3 (2008-2010)
- Chevrolet Colorado & GMC Canyon (2008-2012)
- And many more GM cars, trucks, and SUVs.
Frequently Asked Questions
Do I need to send my VIN number?
Yes. To ensure a 100% plug-and-play experience, we require your vehicle’s 17-digit VIN at checkout. This allows us to program the module specifically for your truck’s configuration, guaranteeing compatibility.
Is any additional programming needed after installation?
No. Our VIN programming service handles everything. Once installed, the module is ready to go without any need for a trip to the dealer or a special scan tool for setup.
What is a core charge?
A core charge is a deposit that is returned to you when you send back your old part. We do not require a core charge for this module, so you can keep your old part without any hassle.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While a faulty TCM can cause a P0700, this code is often accompanied by other, more specific codes. If this module is the source of the failure, replacing it will resolve the codes.
What kind of warranty is included?
This module is backed by our one-year, hassle-free warranty, giving you confidence in the quality and durability of your repair.