Restore Your SSR’s Shifting Performance
Is your 2005-2006 Chevrolet SSR suffering from harsh shifts, getting stuck in gear, or throwing transmission codes? You’re not alone. As a technician with over two decades of experience, I’ve seen countless GM vehicles sidelined by a faulty Transmission Control Module (TCM). The TCM is the brain of your automatic transmission, and when it fails, it can make your unique SSR feel unpredictable and unsafe to drive. This T42 TCM, part number 24240400, is the definitive, hassle-free solution to get your truck’s transmission operating smoothly again.
The biggest headache with replacing a TCM is usually the trip to the dealership for expensive programming. We eliminate that step entirely. We pre-program this module to your vehicle’s specific VIN before it ships, loading it with the latest GM software updates. This ensures it communicates perfectly with your SSR’s powertrain right out of the box. It’s a true plug-and-play fix that restores the crisp, reliable shifting you expect, saving you time, money, and frustration.
From the Diagnostic Bay: The ‘Ghost’ Shifting Problem
A customer brought in a 2006 Chevy Trailblazer (which uses a similar T42 module) with a complaint of random, violent downshifts on the highway. No check engine light was on, but a scan revealed intermittent communication loss codes with the TCM. We checked the wiring and connectors—they were perfect. The issue was internal to the module itself, where heat cycles had caused micro-fractures on the circuit board. Replacing the TCM with a VIN-programmed unit like this one solved the problem instantly. These ‘ghost’ issues are a classic sign of a failing TCM, even without a persistent warning light.
Is Your SSR’s Transmission Acting Up?
A failing TCM can manifest in several ways. If you’re experiencing any of these issues, a faulty module is the likely culprit. In my shop, these are the tell-tale signs I look for when diagnosing a potential 2005-2006 SSR TCM failure:
- âś” Harsh, banging shifts or delayed gear engagement.
- âś” Vehicle is stuck in “limp mode” (usually second or third gear).
- âś” The Check Engine Light or Transmission Warning Light is illuminated.
- âś” Diagnostic Trouble Codes (DTCs) are present, such as the generic P0700 (Transmission Control System Malfunction) or specific solenoid codes like P0751, P0753, P0756, etc.
- âś” Complete loss of upshifting or downshifting capabilities.
- âś” A noticeable drop in fuel economy or signs of the transmission overheating.
A Straightforward Guide to Your SSR TCM Installation
One of the best parts about this fix is how accessible it is for a DIY mechanic. For the 2005-2006 SSR, the process is particularly simple and requires only basic hand tools. You can have this job done in under 30 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts and to help reset the vehicle’s electronic systems.
- Locate the Module: On the Chevrolet SSR, the TCM is conveniently located on the front left-hand (driver’s side) frame rail. It’s an easy-to-reach spot.
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly to avoid damaging them. Then, unbolt the old module from the frame.
- Install the New Module: Bolt your new, VIN-programmed TCM into place. Reconnect the electrical connectors, ensuring they click securely into position.
- Final Steps: Reconnect the negative battery terminal. While the module is plug-and-play, it’s always best practice to use a standard OBD2 scan tool to clear any stored fault codes from the system’s memory. Start the vehicle and enjoy your smooth-shifting transmission!
Verified Vehicle Compatibility
While this is the correct part for your 2005-2006 SSR TCM replacement, this versatile T42 module is also a direct-fit solution for a wide range of other General Motors cars, trucks, and SUVs. It is interchangeable with part numbers 24252114, 24234503, 24230461, and more. Please verify your part number or consult the fitment list below.
Frequently Asked Questions
Do I need to take my vehicle to a dealer for programming after installation?
No. This Transmission Control Module is delivered to you fully pre-programmed to your vehicle’s VIN. This makes the installation a simple plug-and-play process, with no additional programming or dealer visits required.
What information do you need to program the module?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN) at checkout. This allows us to load the correct GM-certified software for your specific vehicle configuration, ensuring perfect compatibility.
Is this a reliable, long-term fix?
Absolutely. This module is built to meet or exceed OEM specifications for performance and durability. It addresses the common failure points of the original units and comes with a one-year warranty for your peace of mind.
Will this fix a P0700 code?
A P0700 code is a general fault code indicating the TCM has detected a problem. Often, replacing a faulty TCM will resolve the P0700 code along with any other specific transmission codes that were present. However, you should always ensure other components like solenoids and wiring are in good condition.
What is a T42 TCM?
The T42 is the hardware designator used by General Motors for this generation of transmission control module. It was widely used in vehicles with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E from the mid-2000s to the early 2010s.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old, faulty module back to us, which simplifies the repair process for you.