Get Your Work Van Back on the Road, Fast.
When your 2006-2014 Chevrolet Express 3500 isn’t shifting right, your business is on the line. A faulty Transmission Control Module (TCM) can cause unpredictable shifting, lock the van in ‘limp mode,’ and ultimately lead to costly downtime. This replacement GM T42 TCM is the no-nonsense, reliable solution to get your workhorse back in service. It arrives pre-programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership programming and allowing for a straightforward, plug-and-play installation.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. This module is engineered to be the definitive fix for these problems:
- Harsh, Erratic, or Delayed Shifting: Clunky gear changes or a failure to shift smoothly under load.
- Stuck in Limp Mode: The transmission defaults to a single gear (usually 2nd or 3rd) to prevent further damage.
- Check Engine Light On: Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related codes are stored in the computer.
- No Communication with the TCM: A scan tool cannot connect to or read data from the transmission module.
- Poor Fuel Economy: Inefficient shifting and torque converter lockup issues can significantly increase fuel consumption.
Installing this pre-programmed 2006-2014 Express 3500 transmission control module directly addresses the electronic source of these failures, restoring the crisp, reliable shifting your van had from the factory.
Key Features & Tangible Benefits
- ✔ 100% VIN Programmed: Arrives ready for installation right out of the box. We program it using the latest GM software updates for your specific Express 3500, ensuring perfect communication and performance without a trip to the dealer.
- ✔ Restores Dependable Performance: Precisely controls shift points, line pressure, and torque converter lock-up, putting an end to erratic transmission behavior and protecting your transmission from premature wear.
- ✔ Built to OEM Specifications: Engineered for durability and reliability, this module is designed to handle the demanding conditions of a commercial work van, from heavy loads to long hours on the road.
- ✔ Clear Fault Codes for Good: A properly functioning TCM is essential for resolving persistent transmission-related DTCs and turning off the check engine light.
- ✔ This unit is backed by our one-year replacement warranty.
- ✔ No Core Charge Required: Keep your old part and avoid the hassle and expense of core returns. This simplifies the repair process, saving you time and money.
Expert Insight: The Smart Fix for a Work Van
As a technician, I’ve seen countless work vans come in with shifting problems. The owner’s biggest concern is always downtime. Swapping in a generic, non-programmed module means the van is still out of commission until it can be towed to a dealer for expensive programming. This VIN-programmed 2006-2014 Express 3500 transmission control module is the professional’s choice because it solves the problem in one step, in your own bay or driveway. It’s the fastest path from a broken-down van to a reliable, income-generating asset.
Don’t let a faulty TCM disrupt your work schedule. This is the direct-fit, ready-to-install solution for your Chevrolet Express or GMC Savana van. By providing a reliable electronic brain for your 4L60E, 4L65E, 4L70E, or 4L80E transmission, this 2006-2014 Express 3500 transmission control module ensures your vehicle is ready to get the job done, every day.
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean?
It means we load your van’s unique 17-digit Vehicle Identification Number (VIN) and the latest GM-certified software onto the module before we ship it. This ensures the TCM works perfectly with your vehicle’s specific engine, transmission, and options, just like the original part did.
Is this part difficult to install on an Express van?
No, installation is straightforward for a DIYer with basic tools. On most 2006-2014 Express and Savana vans, the TCM is located in the engine compartment on the right-hand (passenger) side. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. The entire process typically takes less than 30 minutes.
Will this fix my P0700 and other transmission codes?
Yes, in most cases. A P0700 code is a general fault request from the TCM to the main engine computer. When the failing TCM is the root cause of the problem, replacing it with this correctly programmed unit will resolve the codes. We recommend clearing any stored codes with a scan tool after installation.
Is this compatible with other GM trucks and SUVs?
Yes, this T42 TCM is compatible with a wide range of 2006-2014 GM vehicles, including the Silverado, Sierra, Tahoe, Yukon, and many others that use a 4-speed automatic transmission. This product page is optimized for the Express 3500, but the module itself fits the extensive list of vehicles provided in the fitment data.
Do I need to perform any relearn procedures after installation?
Because the module is pre-programmed to your VIN, no complex relearn procedures are required. The module will adapt to your driving style over the first few drive cycles. For best results, we recommend disconnecting the battery during installation to reset the vehicle’s adaptive memory.