Get Your Workhorse Back in Service, Fast.
Is your 2006-2014 Chevrolet Express 3500 van letting you down with harsh shifting, a check engine light, or getting stuck in gear? A faulty transmission control module (TCM) can bring your workday to a sudden and frustrating halt. This VIN-programmed T42 Transmission Control Module is the definitive solution to get your reliable work van back on the road, eliminating the guesswork and costly dealership programming. It arrives ready for a straightforward, plug-and-play installation, restoring the smooth, predictable performance you depend on.
Common Symptoms & Your Solution
If your van is experiencing any of the following issues, a failing TCM is the most likely culprit. This module is engineered to resolve these problems directly:
- Erratic or Harsh Shifting: Abrupt, jerky gear changes or delayed engagement from park to drive or reverse.
- Stuck in Limp Mode: The transmission refuses to shift, often stuck in 2nd or 3rd gear, severely limiting speed and power.
- Warning Lights: An illuminated Check Engine Light or Transmission Warning Light, often with diagnostic trouble codes (DTCs) like P0700, P0750, or other solenoid-related codes.
- No Shifting: Complete failure to upshift or downshift as you drive.
- Poor Fuel Economy: Inefficient shifting leads to a noticeable drop in MPG, costing you money at the pump.
Installing this pre-programmed Express 3500 Transmission Control Module is the most efficient way to correct these issues and restore your transmission’s electronic brain to perfect working order.
Features & Tangible Benefits
- ✔ 100% Plug-and-Play: We program the module to your van’s specific VIN before shipping. This means no expensive trips to the dealership for programming—just install it and go.
- ✔ Restores Smooth Operation: By precisely managing shift points, torque converter lockup, and line pressure, this TCM eliminates harsh shifting and restores factory performance.
- ✔ Built for Durability: Engineered to meet or exceed OEM specifications, this module is built to handle the demanding conditions of a commercial work vehicle, ensuring long-term reliability.
- ✔ Solves Annoying Electrical Faults: Puts an end to confusing diagnostic codes and intermittent electronic issues caused by a failing original TCM.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
- ✔ Broad Compatibility: A direct replacement for a wide range of part numbers including 24252114, 24234503, 24230461, 24235340, and 24256960.
An Expert’s Insight on VIN Programming
“For a business owner or contractor, vehicle downtime is lost revenue. The biggest advantage of a VIN-programmed Express 3500 Transmission Control Module isn’t just the part itself—it’s the time and money saved. The old way involved installing the part, having the van towed to a dealer, and paying them hundreds for programming. This solution bypasses that entire process. You can often have your van back in service in under an hour right in your own shop or driveway. For a work vehicle, that’s not a convenience; it’s a competitive advantage.”
Don’t let a faulty TCM dictate your schedule. Take control with this reliable, pre-programmed solution and keep your Express 3500 working as hard as you do. This is the smart fix for any owner who values reliability and efficiency.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This is the primary benefit of our service. We pre-program the module using your vehicle’s VIN before it ships. It will arrive ready to install with no additional programming required, saving you time and money.
Is this part difficult to install on my Express van?
Installation is straightforward for someone with basic mechanical skills. On most Express and Savana vans, the TCM is located in the engine compartment on the right-hand (passenger) side. It typically involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. The entire process can usually be completed in under 30 minutes.
How do I know for sure that my TCM is the problem?
Common signs include erratic shifting, getting stuck in one gear (limp mode), and specific transmission-related trouble codes like P0700. While other issues can cause similar symptoms, if you’re experiencing a combination of these, the TCM is the most common point of failure.
Will this fit vehicles other than the Express 3500?
Yes. This T42 TCM is compatible with a wide range of 2006-2014 General Motors vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L80E. This includes models like the Silverado, Sierra, Tahoe, Yukon, and many others. Please check the compatibility list to confirm your specific vehicle.
What is the warranty on this part?
This unit is backed by our one-year replacement warranty. We stand behind the quality of our programmed electronics to ensure your peace of mind.