Is Your Chevrolet SSR Shifting Erratically?
The Chevrolet SSR is a special vehicle, a modern classic that blends retro-styling with V8 power. When it’s running right, it’s a joy to drive. But when the transmission starts acting upโwith harsh bangs into gear, delayed shifts, or getting stuck in limp modeโthat joy turns into frustration. In my 20+ years as a diagnostician, I’ve seen how a faulty Transmission Control Module (TCM) can sideline even the most well-maintained vehicles. The TCM is the brain of your automatic transmission, and when it fails, the symptoms can be dramatic and concerning.
Expert Pro Tip: Check Your Connectors First
Before condemning the module, take a moment to inspect the TCM’s electrical connectors. On the SSR, it’s located on the front left-hand frame rail, where it can be exposed to moisture and road debris. I’ve seen cases where simply cleaning corrosion from the pins with a quality electronic cleaner and ensuring a snug fit restored normal operation. It’s a five-minute check that could save you a lot of diagnostic time.
Diagnosing a Faulty 2005-2006 SSR Transmission Module
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. A customer’s 2006 SSR came into my shop last month with a check engine light and what he described as a “violent 1-2 shift.” A quick scan pulled code P0753 (Shift Solenoid ‘A’ Electrical). While this points to a solenoid, experience has taught me that on these T42 modules, internal driver circuit failure is extremely common and often mimics a solenoid fault. After verifying the solenoid’s resistance was within spec, we knew the module was the problem. Replacing it with a pre-programmed unit solved the harsh shift and cleared the code for good.
- โ Sudden, harsh, or erratic gear shifts.
- โ The vehicle is stuck in a single gear (often 2nd or 3rd, known as “limp mode”).
- โ Check Engine Light or Transmission Warning Light is illuminated.
- โ Diagnostic Trouble Codes (DTCs) like P0700, P0750, P0753, or other solenoid-related codes are present.
- โ Failure to upshift or downshift properly, leading to poor acceleration and fuel economy.
- โ A complete loss of communication with the module, preventing diagnostics.
The Direct-Fit, Programmed Solution
This T42 Transmission Control Module is the definitive solution for your 2005-2006 SSR. We take the guesswork and hassle out of the repair by pre-programming the module to your vehicle’s specific VIN. This means it arrives at your door ready for a true plug-and-play installation, with no need for an expensive trip to the dealership for programming. It’s built to meet or exceed original equipment standards, ensuring long-lasting reliability for the 4L60E or 4L65E transmission in your SSR.
Plug-and-Play Installation: No Dealer Visit Required
You can have your SSR back to shifting smoothly in under an hour with basic hand tools. Follow these simple steps:
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent electrical shorts and reset the system.
- Locate the TCM: On the 2005-2006 SSR, the TCM is mounted to the front left-hand (driver’s side) frame rail.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed module in the same location and securely reconnect the electrical harnesses. Ensure they click into place.
- Reconnect and Verify: Reconnect the battery terminal. Start the vehicle and check for any warning lights. A short test drive will confirm that smooth shifting has been restored.
This module is also a direct replacement for a wide range of other GM vehicles and interchanges with part numbers including 24242391, 24234503, 24235732, and 24252114. Restore the performance and reliability of your unique truck with a solution you can trust.