Restore Your Cobalt’s Shifting Performance
Is your 2006-2010 Chevrolet Cobalt suffering from erratic shifting, getting stuck in gear, or showing transmission-related error codes? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change, managing torque converter lockup, and ensuring overall drivetrain efficiency. When it fails, your driving experience can become unpredictable and frustrating. This genuine GM T42 TCM, service part number 24241806, is the definitive solution to restore your vehicle’s factory performance.
From the Diagnostic Bay
We recently had a 2008 Cobalt come into the shop with a persistent P0752 (Shift Solenoid ‘A’ Stuck On) code. The owner had already spent a fair amount of money replacing the solenoid pack inside the transmission, but the harsh 1-2 shift and check engine light returned within a day. After a quick diagnostic check, we confirmed the solenoids were receiving incorrect voltage commands. The culprit wasn’t the mechanical parts, but the failing logic board inside the original TCM. Installing a VIN-programmed 2006-2010 Cobalt Transmission Module like this one solved the problem instantly, saving the customer from further unnecessary transmission work.
Symptoms of a Failing Cobalt TCM
A faulty transmission module can manifest in various ways. If you’re experiencing any of the following, it’s highly likely your TCM is the root cause:
- âś” Harsh, delayed, or unpredictable gear shifts.
- âś” The vehicle enters “limp mode,” often stuck in 2nd or 3rd gear.
- âś” Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- âś” Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0755, or other solenoid-related codes are stored.
- âś” A noticeable decrease in fuel economy due to inefficient shifting.
- âś” Complete failure to shift gears, either up or down.
Why Choose a VIN-Programmed Module?
This isn’t just a generic part off the shelf. We pre-program each module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures seamless communication between the TCM, the Engine Control Module (ECM), and other vehicle systems. You get a true plug-and-play solution that requires no expensive trip to the dealership for programming. Simply install the part, and you’re ready to go. This process loads the latest GM software updates, resolving many common factory issues and ensuring optimal transmission behavior for your specific vehicle configuration.
This T42 TCM is a direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. While it’s a perfect fit for the 2006-2010 Cobalt Transmission Module, it also interchanges with numerous other part numbers (including 24252114, 24234503, 24242391) and fits models like the HHR, G6, Impala, Silverado, and many more, making it a versatile and reliable repair part.
Frequently Asked Questions
What exactly does a T42 TCM do?
The T42 Transmission Control Module (TCM) is a small computer that acts as the brain for your automatic transmission. It processes data from various sensors (like vehicle speed and engine RPM) to control shift solenoids, regulate hydraulic pressure, and manage the torque converter clutch, ensuring smooth and efficient gear changes.
Why is VIN programming so important?
VIN programming loads your vehicle’s specific software and calibrations onto the module. This ensures the TCM works perfectly with your Cobalt’s engine, tire size, and gear ratios. Without it, the module won’t communicate correctly, leading to continued shifting problems or a no-start condition. Our pre-programming makes this a plug-and-play repair.
Will this 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 this module often resolves the underlying cause of a P0700, it’s essential to scan for other specific transmission codes (like P07xx) to confirm the exact fault. In many cases, replacing a faulty TCM will clear the P0700 and related codes.
Where is the TCM located on a 2007 Chevy Cobalt?
For the 2006-2010 Chevrolet Cobalt, the TCM is conveniently located in the engine compartment, typically mounted on or near the driver’s side (LH) strut tower, making it easily accessible for replacement.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us, which simplifies the repair process and saves you the hassle and expense of return shipping.