Are you experiencing frustrating and unpredictable transmission problems in your vehicle? Harsh shifts, a car stuck in limp mode, or a persistent check engine light can turn any drive into a stressful ordeal. Restore the smooth, reliable performance your GM vehicle was built for with our professionally VIN-programmed T42 Transmission Control Module (TCM). This is not just a replacement part; it’s a complete, plug-and-play solution designed to get you back on the road with confidence and without a mandatory trip to the dealership.
Common Symptoms & Your Solution
A failing TCM can manifest in numerous ways, disrupting your vehicle’s performance and safety. If you’re noticing any of the following issues, this module is the definitive fix:
- Abrupt, harsh, or erratic gear shifts
- Delayed engagement when shifting from Park to Drive or Reverse
- Vehicle stuck in a single gear (limp mode)
- Illuminated Check Engine or Transmission warning lights
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly, leading to poor acceleration and fuel economy
Our programmed T42 transmission control module directly addresses the electronic brain of your transmission, correcting these faults and restoring precise communication between your engine and gearbox.
Features & Benefits
- ✔ Ready-to-Install VIN Programming: We program the module to your vehicle’s specific VIN before shipping. This ensures perfect compatibility with your car’s systems, eliminating the need for expensive dealership programming and resolving common software-related DTCs right out of the box.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the smooth and responsive feel you expect from your automatic transmission.
- ✔ OEM-Standard Quality: Manufactured to meet or exceed original equipment specifications, this module ensures long-term reliability and durability for daily driving, hauling, or long road trips.
- ✔ Cost-Effective Repair: Avoid the high costs and scheduling hassles of a dealership service department. This is a direct-fit, effective solution that saves you time and money.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
In modern vehicles, the TCM is more than just a simple controller; it’s a computer tailored to your car’s unique factory setup, including engine size, axle ratio, and tire size. A generic, non-programmed module can’t account for these variables, often leading to persistent shifting issues or even new error codes. Our VIN programming service loads the latest GM-certified software specific to your vehicle, ensuring every parameter is correct. This is the secret to a successful, one-time repair and why our programmed T42 transmission control module is the superior choice for a lasting fix.
This module is a direct replacement for a wide range of service numbers, including 24242391, 24234503, 24252114, 24240400, and many more. Whether you’re fixing a family SUV like a Tahoe, a workhorse like a Silverado, or a comfortable sedan like a Buick Allure, this programmed T42 transmission control module provides a dependable and straightforward repair.
Frequently Asked Questions
Does this module require any additional programming?
No. We pre-program the module to your vehicle’s VIN before it ships. It arrives ready for plug-and-play installation, with no need for a trip to the dealership or a specialized scan tool for programming.
What is the warranty on this part?
This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind in your purchase.
Is there a core charge for my old part?
No, there is no core charge required. You can keep your old part, eliminating the hassle and expense of shipping it back.
Will this fix my specific error code, like P0700?
A P0700 code indicates a general transmission fault requested by the TCM. While a faulty TCM is a very common cause, it’s essential to diagnose the specific codes stored within the TCM (e.g., solenoid codes). This module is designed to fix faults originating from the controller itself.
Where is the TCM located on my vehicle?
Location varies by model. It’s typically found in the engine compartment, often near the battery, on a strut tower, under the air cleaner box, or on the frame rail. Your vehicle’s service manual will show the exact location.
How do I provide my VIN for programming?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. Please double-check it for accuracy to ensure perfect programming.