Is Your GM Vehicle Shifting Erratically or Stuck in Limp Mode?
A faulty Transmission Control Module (TCM) can bring your work van, family SUV, or daily driver to a grinding halt. If you’re experiencing harsh gear changes, delayed engagement, or persistent transmission-related warning lights, your vehicle’s brain is likely failing. For hardworking vehicles like the GMC Savana or Chevrolet Silverado, this isn’t just an inconvenience—it’s downtime that costs you time and money. Restore dependable performance with this direct-fit, professionally programmed T42 TCM.
Common Symptoms & Your Solution
Don’t let a bad module sideline your vehicle. This T42 TCM is the definitive solution for symptoms such as:
- Abrupt, jerky, or unpredictable shifting
- The vehicle being stuck in one gear (limp mode)
- Failure to upshift or downshift correctly
- Check Engine Light or Transmission Warning Light illumination
- Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults
- Poor fuel economy and transmission overheating
Our VIN programmed T42 TCM arrives ready for installation, specifically calibrated to your vehicle’s factory specifications to resolve these issues without any further modifications.
Features & Benefits
- ✔ Plug-and-Play Installation: This module is pre-programmed to your vehicle’s unique VIN. This critical step ensures perfect communication between the transmission and the engine, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and fluid pressure, this module restores the smooth, responsive shifting you expect from your vehicle, improving both performance and fuel efficiency.
- ✔ Dependable Quality: Built to meet or exceed strict OEM standards for performance and durability, ensuring it can handle the demands of daily driving or heavy-duty work environments.
- ✔ Broad Compatibility: A direct replacement for a wide range of popular 2006-2014 GM vehicles, including trucks, vans, and SUVs equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of Pre-Programming
Why is VIN programming so important? A generic, non-programmed TCM is just a blank slate. Installing one requires specialized, dealer-level scan tools to flash it with your vehicle’s specific software—a process that can be costly and time-consuming. Our process handles that for you. By providing your VIN at checkout, you receive a fully functional, ready-to-install part. This is the smartest way to get your vehicle back in service quickly and correctly, ensuring all transmission strategies are perfectly matched from the moment you turn the key. For a fleet manager or a busy mechanic, this means less bay time and a more reliable repair.
Whether you’re fixing a Chevrolet Express work van or a family’s GMC Yukon, this VIN programmed T42 TCM is the most reliable and efficient way to solve your transmission problems. It directly interchanges with numerous part numbers, including 24252114, 24234503, and 24240400, providing a comprehensive solution. Take control of your vehicle’s performance and order today for a lasting fix.
Frequently Asked Questions
Do I need to program this module?
No. This is a fully VIN programmed T42 TCM. We program it using your vehicle’s VIN before shipping, so it is ready for a plug-and-play installation right out of the box. No dealership visit is required.
How do I know if my TCM is the problem?
Common signs of a failing TCM include erratic shifting, getting stuck in a single gear (limp mode), and specific diagnostic trouble codes like P0700 (Transmission Control System Malfunction). If you are experiencing these symptoms, it is highly likely the TCM is at fault.
Where is the TCM located on my vehicle?
The location varies by model. On many GM trucks and vans like the Savana or Express, it’s in the engine compartment on the right-hand side. On other models, it can be found next to the battery, under the air cleaner box, or on the LH strut tower. Please consult a service manual for your specific vehicle.
Is this part difficult to install?
For someone with basic mechanical skills, the installation is straightforward and typically takes less than 30 minutes. It involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and installing the new one in its place.
What happens if I don’t replace a failing TCM?
Ignoring a failing TCM can lead to more severe and expensive problems. Continued erratic shifting can cause premature mechanical wear on internal transmission components like clutches and bands, potentially leading to a complete transmission failure requiring a costly rebuild or replacement.
Is there a core charge for this part?
No, there is no core charge required for this module. You can keep your old part without any hassle or need to return it.