Restore Peak Performance to Your Chevrolet SSR’s Transmission
Is your 2005-2006 Chevrolet SSR suffering from erratic shifting, getting stuck in gear, or displaying a 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 managing gear changes, torque converter clutch engagement, and shift pressure. When it fails, it can mimic the symptoms of a major mechanical breakdown, leading to frustrating and costly misdiagnoses. This genuine quality GM T42 Transmission Control Module, service part number 24256960, is the definitive solution to restore the smooth, reliable performance your vehicle was designed to deliver.
From the Diagnostic Bay
We recently had a 2007 Silverado in the shop with a persistent, harsh 1-2 shift and an intermittent P0700 code. The owner had already replaced the shift solenoids and performed a full fluid service at another shop, but the problem remained. After connecting our scanner, we noticed intermittent communication drops with the TCM. Instead of recommending a costly transmission rebuild, we installed one of our VIN-programmed T42 modules. The installation took less than 20 minutes. On the first test drive, the truck shifted perfectly through all gears. The customer was thrilled to have a simple, effective fix that saved him thousands compared to a new transmission.
Common Symptoms of a Failing GM T42 TCM
A faulty SSR Transmission Control Module can cause a variety of issues that impact drivability and safety. If you’re experiencing any of the following, your TCM is the likely culprit:
- ✔ Harsh, delayed, or unpredictable gear shifts.
- ✔ The vehicle feels like it’s stuck in one gear (limp mode), often 2nd or 3rd.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults are stored.
- ✔ Failure to upshift or downshift correctly, leading to poor acceleration or high RPMs.
- ✔ A noticeable decrease in fuel economy.
- ✔ Complete loss of transmission engagement or communication.
The Direct-Fit, Programmed Solution
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The most critical aspect of replacing a modern TCM is the programming. Our modules are expertly pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN) before shipping. This ensures seamless integration with your SSR’s powertrain control module (PCM) and other onboard systems. You get optimal shift strategies and performance right out of the box, with no need for an expensive trip to the dealership for programming.
Built to meet and exceed original equipment standards, this module ensures long-term reliability. It directly interchanges with a wide range of GM part numbers, including 24252114, 24234503, 24230461, and 24256960, making it the ideal repair for countless GM cars, trucks, and SUVs from 2006-2014, including the Chevrolet Tahoe, GMC Sierra, Buick LaCrosse, and Cadillac DTS.
Easy Installation Process
Replacing the SSR Transmission Control Module is a straightforward job that can be completed with basic hand tools. For the 2005-2006 Chevrolet SSR, the module is located on the front left-hand frame rail.
- Safety First: Always disconnect the negative terminal of your vehicle’s battery before starting any electrical work.
- Locate and Remove: Identify the TCM on the frame rail. Carefully release the locking tabs on the electrical connectors and unplug them. Then, remove the bolts securing the module to its bracket.
- Install New Module: Bolt the new, pre-programmed module into place. Securely plug in the electrical connectors, ensuring they click into place.
- Final Steps: Reconnect the battery terminal. It’s recommended to use a basic OBD2 scanner to clear any lingering trouble codes from the system. Start the vehicle and take it for a test drive to confirm that all shifting issues are resolved.
Frequently Asked Questions
What does “VIN Programmed” actually mean?
It means we load your vehicle’s unique 17-digit VIN into the module before we ship it. This ensures the TCM has the correct software and calibration files for your specific engine, transmission, and options, allowing it to work perfectly without any additional dealership programming.
Do I need to send my old TCM back for a core charge?
No, there is absolutely no core charge for this part. You can keep your old module or dispose of it without any hassle or extra cost.
Will this part fix a P0700 trouble code?
A P0700 code is a generic fault code indicating the TCM has detected a problem. While this module often resolves the root cause of the P0700 (such as internal failure or solenoid driver faults), it’s essential to diagnose any other specific codes that appear alongside it. In many cases, a new programmed TCM is the correct fix.
What tools are required for installation?
Installation typically requires only basic hand tools, such as a socket set with an extension and a small flathead screwdriver to help release connector tabs. An OBD2 scanner is also highly recommended for clearing codes after installation.
Is this compatible with other GM vehicles besides the SSR?
Yes, absolutely. This T42 TCM is compatible with a vast range of 2006-2014 GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. This includes popular models like the Silverado, Tahoe, Yukon, Impala, and many more.