Restore Flawless Shifting to Your Chevrolet SSR
Is your 2005-2006 Chevrolet SSR suffering from erratic shifting, getting stuck in gear, or displaying a check engine light with transmission codes? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating shift points, managing torque converter lockup, and ensuring smooth, efficient operation. When it fails, it can cripple your vehicle’s performance and drivability. This OEM-quality T42 Transmission Control Module, part number 24235340, is the definitive solution, pre-programmed to your vehicle’s specific VIN for a true plug-and-play installation.
The Critical Role of the SSR Transmission Control Module
Your vehicle’s transmission is a complex hydraulic and mechanical system, but it relies on precise electronic commands to function correctly. The SSR Transmission Control Module processes data from various sensors, including vehicle speed, engine RPM, and throttle position, to determine the exact moment to shift gears. A faulty module can misinterpret this data, leading to harsh gear engagement, delayed shifts, or a complete loss of communication that forces the vehicle into a protective “limp mode.” By replacing your old unit with this reliable, VIN-programmed module, you restore the critical communication link between your engine and transmission, ensuring every shift is as smooth and responsive as the day your SSR left the factory.
From the Diagnostic Bay
We had a 2006 Chevy Trailblazer (which uses the same T42 TCM family) come in with a P0700 code and complaints of being stuck in 3rd gear. The owner had already replaced two different shift solenoids based on a generic code reader’s output, with no success. After a quick scan with our professional equipment, we saw communication dropouts from the TCM. Instead of throwing more parts at it, we installed a VIN-programmed TCM. The vehicle immediately started shifting perfectly. The lesson: transmission codes often point to solenoids, but the root cause is frequently the module that controls them. Starting with the TCM can save you time, money, and a lot of frustration.
Symptoms of a Failing GM T42 TCM
- ✔ Erratic and Harsh Shifting: Experiencing sudden, jerky shifts or banging into gear is a primary indicator of a failing TCM.
- ✔ Stuck in Limp Mode: The transmission may default to a single gear (often 2nd or 3rd) to prevent further damage, severely limiting vehicle speed.
- ✔ Check Engine Light and DTCs: A lit check engine light accompanied by Diagnostic Trouble Codes like P0700 (Transmission Control System Malfunction) or various solenoid-specific codes (P0750, P0753, etc.) points directly to a transmission issue.
- ✔ Delayed Engagement: A noticeable pause when shifting from Park to Drive or Reverse is a common symptom.
- ✔ Poor Fuel Economy: Inefficient shifting and incorrect torque converter lockup caused by a bad TCM can lead to a significant drop in gas mileage.
- ✔ No Communication: In severe cases, a scan tool may be unable to communicate with the TCM, confirming a total module failure.
Plug-and-Play Solution with VIN Programming
The biggest challenge when replacing modern electronic modules is the need for expensive dealership programming. We eliminate that step entirely. Before this module ships, we program it with the latest GM software updates using your vehicle’s unique VIN. This ensures that it works seamlessly with your SSR’s specific configuration, including its engine, axle ratio, and tire size. There is no need for a trip to the dealer or a special scan tool for setup. Simply install the module, clear any old codes, and you’re ready to drive.
This module is a direct replacement for a wide range of GM vehicles equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24230461, 24234274, and more, making it a versatile solution for many GM trucks, SUVs, and cars from the mid-2000s to the early 2010s.
Frequently Asked Questions
What is VIN programming and why is it important?
VIN programming is the process of loading your vehicle’s specific factory software and calibrations onto the TCM. This ensures the module communicates correctly with the engine controller and other systems, resulting in proper shift patterns and torque converter operation for your exact vehicle build. Without it, the transmission may not function correctly.
Is this a difficult part to install myself?
For most DIY mechanics with basic tools, this is a straightforward installation. The TCM is typically located in the engine bay and is accessible. The process involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. The entire job can often be completed in under 30 minutes.
Do I need to return my old TCM (core charge)?
No, there is no core charge for this part. You can keep your old module or dispose of it at your convenience, saving you the hassle and expense of return shipping.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem and has requested the check engine light to be turned on. While this module often resolves the root cause of a P0700, it’s crucial to have the vehicle scanned for other specific codes (e.g., P07xx) that can help pinpoint the exact issue. In many cases, a faulty TCM is the primary culprit.
How do I provide my VIN for programming?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. Please double-check it for accuracy to ensure correct programming before we ship your part.