Is your 2005-2006 Chevrolet SSR suffering from unpredictable shifting, getting stuck in gear, or throwing transmission codes? You’re not dealing with a catastrophic transmission failure; you’re likely experiencing a faulty Transmission Control Module (TCM)—the electronic brain that governs your automatic transmission’s every move. This replacement T42 TCM, part number 24234274, is the definitive solution, arriving pre-programmed to your SSR’s specific VIN for a true plug-and-play repair that restores the smooth, responsive performance you expect.
From the Diagnostic Bay: The SSR That Wouldn’t Shift
A customer brought in a beautiful 2006 SSR. The complaint was intermittent, but severe: sometimes it would refuse to shift out of 2nd gear, and other times it would slam into gear so hard it felt like being rear-ended. They’d already replaced a shift solenoid with no luck. After connecting my scan tool, I saw a generic P0700 (Transmission Control System Malfunction) code, but no specific solenoid faults. In my 20+ years, I’ve learned that when you see ghost-like electrical issues with no clear mechanical cause, the module itself is often the culprit. We installed one of our VIN-programmed TCMs, and the problem vanished instantly. The fix wasn’t in the transmission—it was the brain controlling it.
Is Your SSR Exhibiting These Transmission Issues?
A failing TCM can mimic a variety of mechanical problems. Before you consider an expensive transmission rebuild, check if your vehicle is showing these classic signs of a module failure. Replacing the 2005-2006 SSR TCM is often the correct, cost-effective repair.
- ✔ Harsh, delayed, or erratic gear changes.
- ✔ Vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is illuminated.
- ✔ Diagnostic Trouble Codes (DTCs) are present, such as P0700, P0750, or other solenoid-related codes.
- ✔ Inability to upshift or downshift properly, leading to poor acceleration.
- ✔ A noticeable decrease in fuel economy.
Simple Installation: Get Your SSR Back on the Road
One of the best features of this module is that it’s designed for a straightforward installation that you can perform in your own garage in under 30 minutes. No specialized tools or dealership visits are required.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and help reset the system.
- Locate the Module: On the 2005-2006 SSR, the TCM is mounted on the front left-hand (driver’s side) frame rail.
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle with the locking tabs. Then, unbolt the old module from its mounting bracket.
- Install the New TCM: Mount your new, VIN-programmed TCM in the same location and securely fasten it. Reconnect the electrical harnesses until they click into place.
- Final Steps: Reconnect the battery terminal. Start the vehicle and allow it to idle for a few minutes. While the module is pre-programmed, it’s good practice to use a basic scan tool to clear any stored fault codes from the ECU.
Verified Fitment for Your Vehicle
This T42 Transmission Control Module is a direct-fit replacement for the 2005-2006 SSR TCM and is also compatible with a wide range of other General Motors vehicles. It interchanges with part numbers 24252114, 24234503, 24230461, and more. Please verify your vehicle in the list below:
- Chevrolet SSR (2005-2006) – Location: front LH frame
- Chevrolet Silverado / GMC Sierra 1500 (2007-2013) – Location: next to battery
- Chevrolet Tahoe / GMC Yukon (2007-2009) – Location: next to battery
- Chevrolet Impala (2006-2011) – Location: lower air cleaner housing
- Hummer H3 (2008-2010) – Location: RH rear engine compartment
- Cadillac DTS (2006-2011) – Location: RH front engine compartment
- …and many more GM models from 2006-2014.
Frequently Asked Questions
What does a Transmission Control Module (TCM) do?
The TCM is a computer that acts as the brain for your automatic transmission. It receives data from various sensors on the engine and vehicle, and uses that information to control when to shift gears, how firmly to shift, and when to lock up the torque converter for optimal performance and fuel efficiency.
Why is VIN programming so important?
VIN programming loads your vehicle’s specific software and calibrations onto the module before it ships. This ensures the TCM works perfectly with your SSR’s engine, transmission type, and tire size right out of the box. It eliminates the need for an expensive trip to the dealership for programming.
Is this part difficult to install for a DIYer?
Not at all. For the SSR, it’s a matter of locating the module on the frame rail, disconnecting the battery, swapping the electrical connectors, and unbolting it. Most people with basic hand tools can complete the job in under 30 minutes.
Will this fix a P0700 check engine light code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases where no specific solenoid or sensor codes are present, a failing TCM is the root cause. Replacing it with this module is a very common and effective fix for this code.