Restore Peak Transmission Performance in Your GM Vehicle
Is your work van, truck, or family SUV suffering from erratic shifting, getting stuck in gear, or flashing a check engine light? A faulty Transmission Control Module (TCM) is often the culprit, disrupting communication and causing frustrating, and potentially damaging, performance issues. This genuine GM T42 TCM, service number 24235754, is the definitive solution, arriving pre-programmed to your specific Vehicle Identification Number (VIN) for a seamless, plug-and-play installation. Get your vehicle back on the road and shifting smoothly without a costly trip to the dealership.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing TCM is the likely cause. This module is engineered to resolve these exact issues:
- Harsh or Delayed Shifting: Abrupt gear changes, clunking into gear, or a noticeable lag when accelerating.
- Limp Mode Activation: The vehicle is stuck in a single gear (usually 2nd or 3rd) with significantly reduced power.
- Warning Lights: A persistent Check Engine Light or Transmission Warning Light on your dashboard.
- Diagnostic Trouble Codes (DTCs): Common codes like P0700 (Transmission Control System Malfunction) or various solenoid-specific codes (e.g., P0750-P0758).
- Poor Fuel Economy: Inefficient shifting patterns can lead to a noticeable decrease in your vehicle’s MPG.
Installing this professionally VIN-matched Programmed T42 Transmission Control Module directly addresses the electronic brain of your transmission, restoring crisp, accurate shifting and clearing persistent fault codes for good.
Features & Tangible Benefits
- ✔ 100% Plug-and-Play Installation: We pre-program this module to your vehicle’s VIN using the latest GM software. This eliminates the need for expensive dealership programming or special tools—simply install it and drive.
- ✔ Restored Drivability: By re-establishing precise control over shift points, torque converter lockup, and line pressure, this TCM brings back the smooth, predictable performance you rely on.
- ✔ A Cost-Effective Repair: Avoid the high labor costs and programming fees associated with dealership service. This is a solution designed for professional shops and capable DIYers alike.
- ✔ Built to OEM Standards: Engineered for durability and reliability, this module meets or exceeds original equipment specifications to handle the demands of your work truck or daily driver.
- ✔ Broad Compatibility: A direct replacement for a wide range of popular GM models, including the Silverado, Sierra, Tahoe, Yukon, Savana, Express, Impala, and more. Interchangeable with part numbers 24252114, 24234503, 24230461, and others.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
Why is VIN programming so important? Your vehicle’s transmission performance isn’t one-size-fits-all. The factory calibrates the TCM based on your specific engine, axle ratio, tire size, and other options. An unprogrammed or incorrectly programmed module can lead to persistent shifting issues, internal transmission damage, or even a no-start condition. Our process ensures this Programmed T42 Transmission Control Module has the exact software your vehicle left the factory with, plus any subsequent updates from GM. This guarantees perfect communication between the engine and transmission for optimal performance and longevity from the moment you install it.
Frequently Asked Questions
How do I provide my VIN for programming?
After placing your order, you will be prompted to enter your 17-digit Vehicle Identification Number (VIN). Please double-check it for accuracy, as we program the module specifically to the VIN you provide.
Is this installation difficult? Can I do it myself?
For someone with basic mechanical skills, the installation is straightforward. The module is typically located in the engine bay. The process involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and installing the new one in its place. Most installations take under 30 minutes.
Do I need to clear any codes after installation?
While disconnecting the battery often resets the system, we highly recommend using a standard OBD2 scan tool to clear any stored Diagnostic Trouble Codes (DTCs) from the vehicle’s computer after the new module is installed. This ensures a clean slate for the system.
Is there a core charge for my old part?
No, there is no core charge required for this Programmed T42 Transmission Control Module. You can keep your old part without the hassle of returning it.
How can I be sure this part fits my vehicle?
This module fits a wide range of 2006-2014 GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L80E. Please use the compatibility chart on this page and match your part number to ensure a perfect fit. If you are unsure, please contact us with your VIN before ordering.