Restore Flawless Shifting to Your GM Truck or SUV
Is your 2007 GMC Sierra 2500 suffering from harsh shifting, getting stuck in gear, or displaying transmission-related error codes? These are classic signs of a failing Transmission Control Module (TCM), the electronic brain of your automatic transmission. A faulty TCM can disrupt communication between your engine and transmission, leading to poor performance, decreased fuel efficiency, and potential damage to mechanical components. This genuine quality GM T42 TCM, service part number 24241806, is the definitive solution, pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
From the Diagnostic Bay
We recently had a 2007 Sierra 2500 in the shop with classic symptoms of a bad shift solenoid – a harsh 1-2 shift and a P0751 code. The owner had already spent a few hundred dollars replacing the solenoid himself, but the problem persisted. After a quick diagnostic, we confirmed the solenoid circuit was fine. The real culprit? The driver circuit inside the original TCM was failing intermittently. We installed one of these VIN-programmed modules, cleared the codes, and the truck was shifting perfectly within 30 minutes. It’s a classic case where chasing codes without understanding the system can lead you down the wrong path. The TCM is often the root cause of many solenoid-related DTCs.
Signs Your Transmission Control Module is Failing
A failing TCM can manifest in several ways. If you’re experiencing any of the following, it’s highly likely your module needs replacement:
- ✔ Erratic Shifting: Harsh, unpredictable gear changes, or a noticeable bang or clunk when the transmission shifts.
- ✔ Limp Mode: The vehicle gets stuck in a single gear (usually 2nd or 3rd) to prevent further damage, severely limiting speed and performance.
- ✔ Warning Lights: The Check Engine Light or a dedicated transmission warning light illuminates on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs): You may find codes such as P0700 (Transmission Control System Malfunction) or various solenoid-specific codes (e.g., P0750, P0751).
- ✔ Delayed Engagement: A noticeable pause or hesitation when shifting from Park into Drive or Reverse.
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter lock-up can lead to a significant drop in MPG.
The Direct Solution: A Programmed 2007 Sierra 2500 TCM
This isn’t just a generic, off-the-shelf part. We program each module to your vehicle’s unique VIN before it ships. This critical step ensures the TCM has the correct software and calibrations for your specific engine, transmission, and axle ratio. This process eliminates the need for an expensive trip to the dealership for programming, saving you time and money. By installing our pre-programmed 2007 Sierra 2500 TCM, you are restoring the precise factory logic that governs shift points, line pressure, and torque converter operation for optimal performance and longevity.
Simple, Straightforward Installation
Replacing the TCM is a job most DIY mechanics can handle in under 30 minutes. On the 2007 Sierra 2500 (new body style), the module is typically located in the engine compartment, right next to the battery. Simply disconnect the battery to reset the vehicle’s internal systems, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Once the new module is connected and the battery is reconnected, use a standard OBD2 scan tool to clear any stored fault codes. With no core charge, you can keep or dispose of your old part without any hassle.
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers, including 24252114, 24234503, 24230461, and more. Restore the reliability and smooth operation of your vehicle with this essential component. Order your VIN-programmed 2007 Sierra 2500 TCM today and get back on the road with confidence.
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we load the module with the specific software calibration file from General Motors that matches your vehicle’s 17-digit Vehicle Identification Number (VIN). This ensures the TCM works perfectly with your truck’s specific options and systems right out of the box.
Do I need to take my truck to a dealer after installation?
No. Because the unit arrives pre-programmed to your VIN, no further programming or setup is required. It is a true plug-and-play installation, saving you the cost and inconvenience of a dealership visit.
Where is the TCM located on my 2007 Sierra 2500?
For the 2007 Sierra 2500 with the new body style (smooth door skin), the Transmission Control Module is typically found in the engine bay, mounted next to the battery.
Will this fix my specific transmission problem?
This module is designed to correct issues directly caused by a faulty TCM, such as electronic shifting errors, false solenoid codes, and communication failures. While it resolves the most common transmission electronic problems, you should ensure your vehicle’s mechanical components are in good working order.
Is there a core charge for my old part?
No, there is no core charge associated with this part. You are not required to send your old module back to us, making the process faster and more convenient for you.