Restore Smooth, Reliable Shifting to Your Vehicle
Is your Chevrolet Uplander or other GM vehicle plagued by frustrating transmission issues like harsh shifting, delayed gear engagement, or getting stuck in limp mode? A failing transmission control module (TCM) is often the culprit, disrupting your vehicle’s performance and leaving you with persistent warning lights. This professionally Programmed T42 Transmission Control Module is the definitive, hassle-free solution to get your family’s minivan or work truck back on the road with the smooth, predictable operation you depend on.
Common Symptoms & Your Solution
If you’re experiencing any of the following, this module is designed to be your fix. It directly addresses the root cause of common transmission failures, eliminating the need for complex diagnostics and costly dealership programming. Don’t let a faulty TCM dictate your vehicle’s performance; take control with a reliable, plug-and-play replacement.
- Harsh, erratic, or delayed shifting
- Vehicle stuck in a single gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes
- Failure to upshift or downshift properly
- Poor fuel economy and transmission overheating
Features & Benefits
- ✔ Ready to Install: This module arrives pre-programmed to your vehicle’s specific VIN. This eliminates the need for expensive dealership tools or programming, making for a true plug-and-play installation.
- ✔ Restores Factory Performance: By managing shift points, torque converter lockup, and line pressure with the latest GM software, this TCM restores the smooth, efficient operation your vehicle had when it was new.
- ✔ Solves Annoying Electrical Faults: A failing original module can cause a host of intermittent electrical issues. This new unit provides a stable, reliable connection to your transmission’s sensors and solenoids.
- ✔ Built for Durability: Constructed to meet or exceed OEM specifications, this module is engineered to withstand the demanding conditions of daily driving, ensuring long-term reliability for your vehicle.
- ✔ Broad Compatibility: An exact replacement for a wide range of GM vehicles, including popular trucks, vans, and sedans. Interchangeable with service numbers 24252114, 24234503, 24242391, and more.
- ✔ This unit is backed by our one-year replacement warranty.
From the Mechanic’s Desk: One of the biggest headaches with modern transmission repairs is component programming. Many people buy a used or non-programmed module online, only to find their vehicle won’t start or shift correctly. They end up having to pay for a tow to the dealership, plus a hefty programming fee, wiping out any initial savings. This Programmed T42 Transmission Control Module completely sidesteps that problem. We handle the complex part, so you can perform a simple, confident repair right in your own driveway.
Frequently Asked Questions
Will I need to visit a dealership after installing this part?
No. This module is delivered fully programmed to your vehicle’s VIN. The installation is a direct replacement, and no further programming or dealer intervention is required. Simply install the part, disconnect the battery for 15 minutes to clear any adaptive memory, and you’re ready to drive.
What does a Transmission Control Module (TCM) do?
The TCM is the ‘brain’ of your automatic transmission. It receives data from various sensors on the engine and transmission to control exactly when and how the transmission shifts gears, ensuring optimal performance, fuel efficiency, and smooth operation.
Is this part difficult to install?
For most DIYers with basic tools, this is a straightforward job. The TCM is typically located in the engine bay (e.g., on the strut tower, next to the battery, or under the air cleaner box) and is held in place by a few bolts with electrical connectors. The entire process usually takes less than 30 minutes.
How do I know for sure that my TCM is the problem?
While the symptoms listed above are strong indicators, the best way to confirm is with a proper diagnosis using a professional scan tool. Common TCM failure codes include P0700 (Transmission Control System Malfunction) and various solenoid circuit codes (e.g., P0751, P0756). If your vehicle is in limp mode and showing these codes, the TCM is a very likely cause.
What happens if I don’t replace a failing TCM?
Continuing to drive with a faulty TCM can lead to more severe and expensive damage. Poor shifting can cause excessive wear on internal transmission components like clutches and bands, potentially leading to a complete transmission failure that requires a full rebuild or replacement.
By choosing this expertly Programmed T42 Transmission Control Module, you are not just buying a part; you are investing in a reliable, long-term fix that restores your vehicle’s drivability and your confidence on the road. Order now for fast shipping and get your GM vehicle shifting perfectly again.