Is Your Work Van Plagued by Transmission Problems?
For a business owner or tradesperson, a Chevrolet Express van with a faulty transmission isn’t just an inconvenience—it’s a threat to your livelihood. Erratic shifting, getting stuck in gear, or a glowing check engine light means downtime, lost jobs, and unexpected costs. This VIN-Programmed T42 Transmission Control Module (TCM) is the definitive, no-hassle solution to get your van back on the road and running reliably, restoring the performance you depend on every single day.
Common Symptoms & Your Solution
If your vehicle is experiencing any of the following issues, a failing TCM is the likely culprit. This module is engineered to directly resolve these problems:
- Harsh, banging, or delayed gear shifts
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Transmission or Check Engine warning lights are on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift correctly
- Poor fuel economy and a feeling of sluggish performance
Installing this pre-programmed 2006-2014 Express 1500 transmission control module is the most efficient way to correct these electronic faults and restore crisp, accurate shifting without a costly trip to the dealership.
Features & Benefits
- ✔ 100% Plug-and-Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. There is no need for additional, expensive programming—simply install it, and you’re ready to go.
- ✔ Restores Smooth Operation: By precisely managing shift points, torque converter lockup, and line pressure, this TCM eliminates harsh shifting and restores the smooth, predictable performance your transmission had from the factory.
- ✔ Solves Annoying Warning Lights: Engineered to resolve common electronic faults that trigger DTCs and illuminate the check engine light, helping you pass inspections and drive with confidence.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications for durability and performance, ensuring it can handle the demands of a work vehicle or daily driver.
- ✔ Broad GM Compatibility: While this is the perfect 2006-2014 Express 1500 transmission control module, it is also a direct-fit replacement for a wide range of GM trucks, vans, and SUVs, including the Silverado, Tahoe, Sierra, and Yukon.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Importance of VIN Programming
Many sellers offer non-programmed or “blank” control modules, which seems like a good deal until you realize the hidden costs. A blank module is useless until it’s programmed by a dealership or a high-end shop with a GM Tech 2 scanner and a TIS2Web subscription. This process can cost hundreds of dollars and add days of downtime to your repair. Our process eliminates that entirely. We flash the module with your vehicle’s exact VIN and the latest GM software updates before it ships, ensuring it communicates perfectly with your engine and other systems right out of the box. This is the smartest, fastest, and most cost-effective way to complete the job correctly the first time.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This module comes fully pre-programmed to the VIN you provide during checkout. It is a true plug-and-play solution, saving you the time and expense of a dealership visit.
Where is the TCM located on my vehicle?
The location varies by model. On many GM trucks and vans like the Express, it’s found in the engine compartment, often on the right-hand side. On other vehicles, it could be near the battery, under the air cleaner box, or on the LH strut tower. A quick search for your specific model will confirm the exact location.
Is this the right part for my vehicle?
This T42 TCM is compatible with a wide range of 2006-2014 GM vehicles using 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. Please check the compatibility list on this page or match your original part number to ensure a perfect fit. If you’re unsure, our support team is here to help.
Will this fix my P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While this module often resolves the underlying issue causing the P0700, it’s important to have the specific transmission codes (e.g., P0751, P0756) read to confirm the diagnosis. This part is the solution for most electronic and solenoid control circuit faults.
Do I need to send my old part back?
No, there is no core charge for this 2006-2014 Express 1500 transmission control module. You can keep your old part without any additional fees or hassle.