Restore Peak Transmission Performance in Your GM Vehicle
Is your Chevrolet SSR, Silverado, Tahoe, or other GM vehicle suffering from erratic shifting, getting stuck in gear, or displaying a persistent check engine light? These are classic signs of a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating smooth gear changes, managing torque converter lockup, and ensuring overall drivetrain efficiency. When it fails, the symptoms can range from annoying to debilitating, often leaving you stranded in limp mode.
This genuine OEM-quality GM T42 TCM, part number 24240400, is the definitive solution to restore your transmission’s functionality. What sets our module apart is the crucial VIN programming service included with your purchase. We flash the unit with your vehicle’s specific VIN and the latest GM software updates before it ships. This means it arrives at your door ready for a true plug-and-play installation, eliminating the need for expensive and time-consuming programming at a dealership. Get back on the road quickly with a part that works correctly right out of the box.
Expert Pro Tip
Before installing your new TCM, it’s a best practice to disconnect the vehicle’s battery for at least 15 minutes. This helps reset the vehicle’s main computer (ECU) and related systems, ensuring they properly recognize the new module upon startup. After installation, use a quality OBD2 scanner to clear any stored Diagnostic Trouble Codes (DTCs) for a clean slate.
Identifying a Faulty 2005-2006 SSR TCM
A failing 2005-2006 SSR TCM can manifest in various ways, often mimicking other transmission problems. If you’re experiencing any of the issues below, your TCM is the likely culprit. This module is also the correct solution for a wide range of other GM vehicles from 2006-2014 that use the T42 platform, including models from GMC, Buick, Cadillac, Pontiac, and Saturn. The core issues remain the same across these applications.
Common Symptoms of TCM Failure
- ✔ Harsh or Delayed Shifting: Your vehicle may slam into gear, hesitate before shifting, or refuse to shift at the correct RPM.
- ✔ Stuck in Limp Mode: The transmission may default to a single gear (often 2nd or 3rd) to prevent further damage, severely limiting vehicle speed.
- ✔ Warning Lights: The Check Engine Light or a dedicated transmission warning light will illuminate on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs): You may find codes such as P0700 (Transmission Control System Malfunction), P0750-P0758 (Shift Solenoid Errors), or other transmission-related codes.
- ✔ Poor Fuel Economy: Inefficient shifting and torque converter operation caused by a faulty TCM can lead to a noticeable drop in MPG.
- ✔ No Communication: In severe cases, a scan tool may be unable to communicate with the TCM, indicating a complete module failure.
Replacing your faulty module with this pre-programmed 2005-2006 SSR TCM not only resolves these immediate issues but also restores the precise electronic control necessary for the longevity of your 4L60E, 4L65E, or 4L70E transmission. Don’t let a bad electronic component lead to a costly mechanical failure. This direct-fit part ensures your transmission receives the correct commands for optimal performance and durability.
Frequently Asked Questions
Why is VIN programming so important for this TCM?
The TCM works with your vehicle’s Engine Control Unit (ECU) and other modules. VIN programming loads the specific software calibration for your vehicle’s engine, transmission type, tire size, and axle ratio. Without it, the module won’t communicate correctly, leading to shifting problems, error codes, or a no-start condition. Our service saves you a mandatory trip to the dealer.
Where is the T42 TCM located on most GM vehicles?
Location varies by model. Common spots include the engine compartment on the driver’s or passenger’s side, often near the battery, on the strut tower, or under the air cleaner box. For the 2005-2006 SSR specifically, it is located on the front left-hand frame rail. Always consult a service manual for your exact vehicle if you are unsure.
Will this module fix a P0700 trouble code?
A P0700 code is a general fault code indicating that the TCM has detected a problem and has requested the check engine light to be turned on. While a faulty TCM can cause a P0700, this code is often accompanied by more specific codes that point to the exact issue. Replacing the TCM is the correct fix if the module itself has failed, which is a common occurrence.
Is this installation difficult for a DIY mechanic?
For most individuals with basic mechanical skills, this is a straightforward job. It typically involves disconnecting the battery, unplugging a few electrical connectors, and unbolting the old module. Since our part is pre-programmed, no special electronic tools are needed. The entire process can often be completed in under 30 minutes.
Do I need to send my old TCM back?
No, there is no core charge for this part. You can keep your old module or dispose of it responsibly without any hassle or additional cost.