Restore the Signature Performance of Your Chevy SSR
The Chevrolet SSR is a unique vehicle, blending retro-styling with modern performance. When your transmission starts acting up—with harsh shifts, delayed engagement, or getting stuck in gear—it ruins the entire driving experience. As a technician with over two decades of experience, I’ve seen countless transmission issues that weren’t the fault of the heavy-duty mechanical parts, but rather the electronic brain controlling them. This VIN-programmed T42 Transmission Control Module (TCM) is the direct-fit, reliable solution for your 2005-2006 SSR Transmission Module, designed to restore the crisp, predictable shifting you expect.
This isn’t just a replacement part; it’s a permanent fix for the frustrating electronic gremlins that plague these systems. We pre-program the module to your vehicle’s specific VIN, ensuring it communicates flawlessly with the engine computer and other systems right out of the box. This eliminates the need for an expensive trip to the dealership for programming, making it a perfect project for the home mechanic or a time-saving solution for professional shops.
A Technician’s Notebook: The Misleading P0700 Code
I remember a 2006 Trailblazer SS—which uses a similar T42 system to the SSR—that came into my bay. The customer was convinced his 4L70E transmission needed a full rebuild. He had a generic P0700 (Transmission Control System Malfunction) code and experienced erratic shifting. Another shop had quoted him thousands. After a quick scan, I saw multiple solenoid performance codes alongside the P0700. Instead of tearing down the transmission, I checked the TCM. Sure enough, heat and vibration had caused internal failures. We swapped in a VIN-programmed TCM, cleared the codes, and the truck drove like new. It’s a classic case where a simple electronic module mimics a catastrophic mechanical failure, saving the customer a fortune.
Is Your SSR’s Transmission Acting Up?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Unpredictable or harsh gear shifts, especially when the vehicle is warm.
- ✔ The vehicle enters “limp mode,” often getting stuck in 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated with codes like P0700, P0751, P0756, or other solenoid-related DTCs.
- ✔ Failure to upshift or downshift, leading to poor acceleration and terrible fuel economy.
- ✔ Complete loss of communication with the TCM, preventing the vehicle from starting or shifting out of park.
Your 30-Minute Path to a Smooth Ride
Installing your new 2005-2006 SSR Transmission Module is a straightforward process that you can complete with basic hand tools. The module is typically located on the front left-hand frame rail on the SSR.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the vehicle’s computer systems.
- Locate the Old Module: Find the TCM on the front LH frame. It will have several large electrical connectors attached to it.
- Disconnect and Remove: Carefully unclip the wiring harnesses. Be gentle to avoid breaking the plastic tabs. Then, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Securely reconnect the wiring harnesses, ensuring they click into place.
- Final Steps: Reconnect the battery terminal. Start the vehicle and let it idle for a few minutes. While our programming handles the critical data, it’s always good practice to use a basic OBD2 scanner to clear any stored fault codes. Take a test drive to confirm smooth shifting has been restored.
Verified Vehicle Compatibility
This T42 TCM, part number 24238856, is the correct component for the following vehicles. Please verify your model and year for guaranteed compatibility.
- Chevrolet SSR: 2005-2006 (Transmission; front LH frame)
- Chevrolet & GMC Trucks/SUVs: Silverado, Sierra, Tahoe, Yukon, Avalanche, Suburban (2007-2013, various configurations)
- Chevrolet & GMC Vans: Express, Savana (2006-2014)
- Buick / Cadillac: LaCrosse, Allure, Lucerne, DTS (2006-2011)
- Pontiac / Saturn: G5, G6, Grand Prix, Ion, Aura, Vue (2006-2010)
- And more: Also fits specific years of the Hummer H3, Saab 9-7X, Trailblazer, Envoy, and Colorado/Canyon.
Frequently Asked Questions
2005-2006 SSR Transmission Module
Do I need to do any programming after installation?
No. This is delivered fully programmed to your vehicle’s VIN. It is a true plug-and-play solution, requiring no further dealer intervention or special tools.