Is Your Cobalt Shifting Erratically or Stuck in Gear?
If you’re dealing with a 2006-2010 Chevy Cobalt that’s banging into gear, refusing to shift, or has the check engine light glaring at you, you’ve come to the right place. After more than two decades turning wrenches and diagnosing these exact issues, I can tell you that a faulty Transmission Control Module (TCM) is one of the most common culprits. Itโs the brain of your automatic transmission, and when it fails, it can make your reliable daily driver feel completely unpredictable.
This isn’t just another part; it’s a complete, ready-to-install solution. We take this high-quality T42 TCM (interchangeable with part number 24230461) and pre-program it to your Cobalt’s specific Vehicle Identification Number (VIN) before it ever leaves our shop. This critical step ensures it communicates perfectly with your car’s other computers right out of the box, saving you from a costly and time-consuming trip to the dealership for programming.
From the Shop Floor: “A customer’s 2008 Cobalt came in last week with these exact symptoms. The check engine light was on with a P0700 code, and it was stuck in 3rd gear. They were worried about a full transmission rebuild. After a quick scan, we confirmed a faulty TCM. We swapped in one of our VIN-programmed modules, and in under 30 minutes, the car was shifting perfectly, and the customer saved hundreds, if not thousands, on unnecessary repairs. This is a common scenario for these vehicles.”
Common Symptoms of a Failing Cobalt TCM
A bad TCM can manifest in several ways. If you’re noticing any of the following, it’s a strong indicator that your module needs attention:
- โ Harsh, delayed, or erratic gear shifts.
- โ Vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- โ Check Engine Light or Transmission Warning Light is illuminated.
- โ Diagnostic Trouble Codes (DTCs) like P0700, P0750, or other solenoid-related faults are present.
- โ Complete failure to upshift or downshift.
- โ A sudden drop in fuel economy.
Plug-and-Play Installation for the 2006-2010 Cobalt Transmission Module
One of the best parts about our VIN-programmed modules is the simple installation. You don’t need to be a master technician to get this done. For the Chevy Cobalt, the TCM is conveniently located and the swap takes less than 30 minutes.
- Safety First: Disconnect the negative terminal from your car’s battery to prevent any electrical shorts and to help reset the vehicle’s computer systems.
- Locate the TCM: On the 2006-2010 Cobalt, the TCM is found on the driver’s side of the engine bay, mounted to the LH strut tower.
- Disconnect and Remove: Carefully unclip the electrical connectors from the old module. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place and securely reconnect the electrical connectors. You should hear a click as they lock in.
- Reconnect and Verify: Reconnect the battery terminal. Start the car and allow it to idle for a few minutes. Take it for a test drive to confirm that shifting is smooth and the warning lights are off.
Guaranteed Quality and Broad Compatibility
This module is built to meet or exceed OEM specifications for long-lasting reliability. It’s backed by our one-year warranty for your peace of mind. While this listing is focused on the 2006-2010 Cobalt Transmission Module, this T42 unit also serves as a direct replacement for a wide array of GM vehicles, including the HHR, G5, G6, and Saturn Ion. It is a direct replacement for part numbers 24252114, 24234503, 24230461, 24234274, 24235340, and many more. Order today and get your Cobalt running right again!