Restore Flawless Shifting to Your GM Vehicle
Is your GMC Savana, Chevy Silverado, or Tahoe suffering from harsh shifts, getting stuck in gear, or throwing transmission codes? A faulty Transmission Control Module (TCM) is often the culprit, causing frustrating and unpredictable driving behavior. This T42 TCM, service number 24240449, is the definitive solution, arriving pre-programmed specifically to your vehicle’s VIN. This eliminates the need for expensive dealership visits and gets your truck or van back to work with the reliability you depend on.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely cause. This module is engineered to resolve them directly:
- Erratic, harsh, or delayed gear shifts
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Poor fuel economy and potential transmission overheating
Installing this professionally programmed module restores the precise electronic control your automatic transmission needs for smooth, efficient operation. It’s the most effective way to solve these common GM transmission problems for good.
Features & Benefits
- ✔ Plug-and-Play Installation: This module is a VIN programmed T42 TCM. We flash it with your vehicle’s specific information and the latest GM software updates before it ships. It works correctly the moment you install it, with no additional programming required.
- ✔ Restores Peak Performance: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the smooth, responsive feel your vehicle had when it was new.
- ✔ Cost-Effective Repair: Avoid the high costs and scheduling hassles of a dealership service department. This is a straightforward, DIY-friendly solution that saves you time and money.
- ✔ Built for Durability: Constructed to meet or exceed strict OEM standards, ensuring long-lasting performance and reliability whether you’re on the job site or on a family road trip.
- ✔ Broad Compatibility: An exact replacement for a wide range of part numbers, including 24252114, 24234503, 24240449, and many more, for vehicles equipped with 4L60E, 4L65E, 4L70E, and 4L80E transmissions.
- ✔ Guaranteed Protection: This unit is backed by our one-year replacement warranty.
Expert Insight from Our Technicians
“We see these T42 modules frequently. The biggest mistake people make is buying a used, non-programmed unit from a junkyard. It simply won’t work. The module is the ‘brain’ of the transmission and it’s tied directly to the vehicle’s VIN and specific options. Our process of programming it to your VIN before shipping is what makes this a true plug-and-play fix. We ensure it has the correct software, which solves the root cause of many shifting issues and prevents future communication errors with other vehicle modules.”
Frequently Asked Questions
How do I provide my VIN for programming?
After you place your order, you will be prompted to enter your vehicle’s 17-digit VIN. We cannot ship the module until we receive this information, as the programming is essential for it to function in your vehicle.
Is this installation difficult? Can I do it myself?
For most models, this is a very straightforward installation that takes less than 30 minutes. The TCM is typically located in the engine compartment (e.g., next to the battery, on the strut tower, or near the air cleaner box). Basic hand tools are all that’s required. Always disconnect the battery before starting.
Will this VIN programmed T42 TCM fix my specific error code?
This module is the direct solution for a wide range of transmission-related DTCs, including the common P0700 (Transmission Control System Malfunction) and various solenoid codes. If your diagnosis points to a faulty TCM, this part is designed to clear those codes once installed.
Do I need to return my old part?
No, there is no core charge for this part. You can keep your old module, which saves you the time and hassle of shipping it back.
How can I be sure this part fits my vehicle?
This T42 TCM fits a vast array of 2006-2014 GM vehicles. Please use the compatibility chart on this page and match your original part number to the interchange list provided. Providing your VIN during checkout is the final step to guarantee a perfect match.