Restore Peak Transmission Performance in Your GM Vehicle
Is your Saturn Vue, Chevrolet Silverado, or GMC Sierra suffering from erratic shifting, getting stuck in gear, or displaying a persistent check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating smooth gear changes, managing torque converter lockup, and ensuring overall driveline efficiency. When it fails, it can lead to frustrating performance issues, poor fuel economy, and even potential damage to your transmission. This T42 Transmission Control Module, service part number 24235340, is the definitive solution for a wide range of GM vehicles, designed to restore the precise, reliable operation you expect.
From the Diagnostic Bay
We had a 2008 Chevy Tahoe come into the shop with classic symptoms: harsh 1-2 shifts and occasionally getting stuck in 3rd gear (limp mode). The owner had already spent a small fortune replacing shift solenoids at another shop, but the problem persisted. A quick scan showed a P0700 code, which is a general transmission fault request. Digging deeper, we found intermittent communication errors with the TCM. Instead of throwing more parts at it, we installed one of our VIN-programmed T42 modules. The installation took less than 20 minutes. After clearing the codes, the Tahoe shifted like it just rolled off the factory floor. It’s a common scenario—the issue isn’t always mechanical; often, the controller is the root cause.
Symptoms of a Failing T42 TCM
- ✔ Harsh or Delayed Shifting: Experiencing jarring shifts between gears or a noticeable hesitation when the transmission is supposed to change gear.
- ✔ Stuck in Limp Mode: The vehicle refuses to shift out of a single gear (often 2nd or 3rd) to protect the transmission from further damage.
- ✔ Warning Lights: The Check Engine Light or a dedicated transmission warning light illuminates on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs): Common codes like P0700 (Transmission Control System Malfunction) or various solenoid-specific codes (P0751, P0756, etc.) are stored.
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter operation can lead to a sudden drop in your vehicle’s MPG.
- ✔ No Communication: A scan tool may be unable to communicate with the TCM, indicating a complete module failure.
The Advantage of a Pre-Programmed 2007-2010 Vue TCM
Replacing a modern electronic module isn’t just a mechanical swap. Our process eliminates the most complicated and costly step: programming. We pre-program this T42 TCM specifically to your vehicle’s unique Vehicle Identification Number (VIN) before it ships. This ensures 100% compatibility with your vehicle’s specific configuration, including engine size, gear ratios, and tire size. You get a true plug-and-play component that requires no expensive trips to the dealership for flashing or setup. It arrives ready for installation, loaded with the latest GM software updates to ensure optimal performance and longevity.
Installation and Compatibility
This module is engineered for a straightforward installation process. Depending on your specific GM model, the TCM is typically located in the engine compartment—often on the LH strut tower, next to the battery, or under the air cleaner box. The physical swap can usually be completed in under 30 minutes with basic hand tools. Simply disconnect the vehicle’s battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Once installed, reconnect the battery and use a standard OBD2 scanner to clear any lingering fault codes. With no core charge, you don’t have to worry about the hassle and expense of returning your old part.
This part is a direct replacement for a multitude of service numbers, including 24252114, 24234503, 24230461, 24235340, and many more, making it a versatile solution for countless GM cars, trucks, and SUVs from 2006 to 2014 equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E.
Frequently Asked Questions
What does a Transmission Control Module (TCM) do?
The TCM is a computer that processes data from various sensors on the engine and transmission to control shift points, line pressure, and torque converter lockup. This ensures smooth shifting, optimal performance, and fuel efficiency.
Does this 2007-2010 Vue TCM require programming?
No, it does not. We handle all the programming for you. This module is flashed with your vehicle’s specific VIN, so it arrives ready for a plug-and-play installation without any need for dealership tools or software.
Is this part difficult to install myself?
For most individuals with basic mechanical skills, the installation is straightforward. It involves disconnecting the battery, locating the old module in the engine bay, swapping the electrical connectors, and bolting the new one in. It typically takes less than 30 minutes.
How do I know for sure that my TCM is the problem?
While the symptoms listed are strong indicators, a proper diagnosis with a professional scan tool is the best way to confirm. Look for communication errors with the TCM or specific transmission-related fault codes. If you’ve already checked solenoids and fluid levels, the TCM is a very likely culprit.
What happens if I continue driving with a faulty TCM?
Continuing to drive with a bad TCM can lead to more severe transmission damage. Harsh shifting and incorrect line pressure can cause excessive wear on clutches and other internal components, potentially leading to a complete transmission failure that is much more expensive to fix.