Restore Your Vehicle’s Shifting Performance
Are you experiencing frustrating and unpredictable shifting in your 2007-2010 Saturn Vue or another GM vehicle? A faulty Transmission Control Module (TCM) is often the culprit behind issues like harsh gear changes, getting stuck in limp mode, or an illuminated check engine light. This genuine GM T42 Transmission Control Module, service part number 24255280, is the definitive solution to restore the precise, smooth operation your vehicle was designed for. As the electronic brain of your automatic transmission, the TCM manages everything from shift points to torque converter lockup, making its proper function essential for drivability, fuel economy, and transmission longevity.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We pre-program each module to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This critical step ensures seamless communication with your vehicle’s other computers, eliminating the need for an expensive and time-consuming trip to the dealership for programming. Simply install the module, and you’re ready to get back on the road with confidence.
From the Diagnostic Bay
We recently had a 2008 Chevy Silverado in the shop with classic transmission trouble: harsh 1-2 shifts and an intermittent P0752 (Shift Solenoid ‘A’ Stuck On) code. The owner had already replaced the solenoid twice with no success. After a quick data scan, we noticed the command signals from the TCM were erratic. Instead of diving back into the transmission pan, we swapped in a VIN-programmed T42 module. The test drive was perfect—smooth shifts, no codes. It’s a common scenario where the control unit itself is the source of the problem, not the mechanical parts it commands. This highlights why correctly diagnosing the TCM is crucial before attempting costly internal transmission repairs.
Identifying a Failing 2007-2010 Vue Transmission Module
The symptoms of a failing TCM can range from subtle annoyances to issues that render the vehicle undrivable. Because the TCM is central to the transmission’s operation, its failure can mimic mechanical problems. If you’re experiencing any of the following, your 2007-2010 Vue Transmission Module may need replacement. These symptoms are also common across the wide range of compatible GM vehicles, including the Chevrolet Impala, GMC Sierra, and Buick LaCrosse.
Common Symptoms of a Defective T42 TCM
- âś” Erratic and Harsh Shifting: Abrupt, jerky, or delayed gear changes that make for an uncomfortable ride.
- âś” Stuck in Gear / Limp Mode: The vehicle may refuse to shift out of a single gear (often 2nd or 3rd) to prevent further damage.
- âś” Warning Lights: The Check Engine Light or a specific transmission warning light will illuminate on your dashboard.
- âś” Diagnostic Trouble Codes (DTCs): You may find codes like P0700 (Transmission Control System Malfunction) or various solenoid-specific codes (e.g., P0750-P0758).
- âś” Poor Fuel Economy: Inefficient shifting and failure to engage the torque converter lockup can lead to a noticeable drop in MPG.
- âś” No Communication: In severe cases, a scan tool may be unable to communicate with the TCM, indicating a complete module failure.
Plug-and-Play Reliability
Our commitment is to provide a hassle-free repair experience. By programming this module with the latest GM software updates tied to your VIN, we ensure it functions correctly right out of the box. This T42 TCM is built to meet or exceed original equipment standards, providing a dependable, long-term fix for your transmission woes. It is a direct replacement for a wide range of part numbers, including 24252114, 24234503, and 24242391, making it a versatile solution for many popular GM cars, trucks, and SUVs equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. Get your vehicle back to factory performance with this essential component.
Frequently Asked Questions
What does this T42 Transmission Control Module do?
The T42 TCM is the computer that controls all electronic functions of your 4-speed automatic transmission. It receives data from various vehicle sensors (like speed and throttle position) to determine the optimal time to shift gears, control line pressure, and engage the torque converter clutch for maximum efficiency and smoothness.
Is this part truly plug-and-play?
Yes. We pre-program the module using the VIN you provide at checkout. This ensures it has the correct software and calibration for your specific vehicle, allowing you to install it without needing any additional programming from a dealership or specialized shop.
Where is the TCM located on my vehicle?
The location varies by model. On a 2007-2010 Saturn Vue, it’s typically in the LH front of the engine compartment. On trucks like the Silverado or Sierra, it’s often next to the battery. For cars like the Impala or LaCrosse, it might be under the air cleaner housing. Always consult a service manual for your specific vehicle to confirm the location before beginning installation.
Will replacing the TCM fix a P0700 trouble code?
A P0700 code is a general fault code indicating that the TCM has detected a problem and has requested the check engine light to be turned on. While a faulty TCM can cause a P0700, this code is often accompanied by other, more specific codes. Replacing the 2007-2010 Vue Transmission Module is a common fix, especially if you have other related symptoms, but proper diagnosis is always recommended.
Do I need to return my old part (core)?
No, there is no core charge for this module. You can keep your old part, which simplifies the purchasing and installation process for you.