When your Chevrolet Express 3500 is your workhorse, transmission problems aren’t just an inconvenience—they’re a threat to your livelihood. Erratic shifting, dashboard warning lights, and a van stuck in limp mode mean lost time and lost income. This pre-programmed T42 Transmission Control Module (TCM) is the direct-fit, reliable solution to get your van running smoothly and dependably again, right out of the box.
Common Symptoms & Your Solution
A failing TCM can cause a host of frustrating issues that sideline your vehicle. If you’re experiencing harsh or delayed gear changes, slipping between gears, or the transmission refusing to shift, a faulty module is the likely culprit. This is often accompanied by a Check Engine Light and Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults. Our professionally programmed 2006-2014 Express 3500 transmission control module is engineered to be the definitive solution, correcting these electronic commands and restoring the crisp, predictable performance your work van needs.
Features & Benefits
- ✔ VIN-Programmed for Your Van: Forget expensive trips to the dealer or programmer. We pre-program this module to your vehicle’s specific VIN using the latest GM software, ensuring it works perfectly upon installation.
- ✔ Restores Smooth, Reliable Shifting: Eliminates harsh gear changes, slipping, and delayed engagement by restoring precise electronic control over your 4L60E, 4L80E, or other compatible automatic transmission.
- ✔ Clears Frustrating Fault Codes: The correct programming is designed to resolve common Diagnostic Trouble Codes (DTCs) like P0700 and solenoid-related errors that trigger your check engine light.
- ✔ Built for Hard Work: Engineered to meet or exceed original GM specifications, this module is designed to handle the daily demands of a hardworking commercial vehicle, ensuring long-term dependability.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty.
From Our Experts: Why Pre-Programming is Critical for Your Work Van
For a vehicle like the Express 3500, downtime is the enemy. In the past, replacing a TCM meant installing the part, then having the van towed to a dealership for expensive programming. That’s a day or more off the road. Our VIN programming service eliminates that entire step. We load the latest GM software specific to your van’s VIN before it ships. This makes the 2006-2014 Express 3500 transmission control module truly plug-and-play, allowing you or your mechanic to complete the job in under an hour. It’s the fastest, most reliable way to get your van out of the garage and back to earning for you.
Installation is straightforward, with the module typically located in the right-hand side of the engine compartment on Express and Savana vans. By choosing this pre-programmed 2006-2014 Express 3500 transmission control module, you are choosing a fast, effective repair that minimizes downtime and gets your business back in motion.
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. This module arrives at your door fully programmed to your vehicle’s specific VIN. It is ready for immediate installation without any need for additional programming or dealership visits.
Where is the TCM located on my 2009 Express 3500?
On the 2006-2014 Chevrolet Express and GMC Savana vans, the transmission control module is typically located in the engine compartment on the right-hand (passenger) side.
Will this module fix a P0700 trouble code?
Yes. A P0700 code indicates a general transmission fault has been requested by the TCM. A faulty module is a very common cause, and replacing it with this correctly programmed unit is a primary solution for resolving this and related transmission codes.
Is there a core charge for my old part?
No, there is no core charge required for this part. You can keep your old module without the hassle of returning it.
Is this part compatible with other GM vehicles?
Absolutely. While this is the correct part for your Express van, the T42 TCM was used across a wide range of GM vehicles, including the Silverado, Sierra, Tahoe, Yukon, and many others from 2006-2014. Please check the compatibility list to confirm your specific model.