Is Your Cadillac or GM Vehicle Experiencing Transmission Problems?
If you’re dealing with harsh shifting, a check engine light that won’t go away, or a transmission that seems stuck in gear, a faulty Transmission Control Module (TCM) is often the culprit. This genuine GM TCM, part number 24239785, is the definitive solution to restore your vehicle’s crisp shifting and electronic reliability. We eliminate the biggest hurdle in this repair by pre-programming the module to your vehicle’s specific VIN before it ships, creating a true plug-and-play solution.
Common Symptoms of a Failing 2007 STS Transmission Module
A failing TCM can manifest in various ways, often mimicking internal transmission failure. Before you condemn your transmission, check if your vehicle is exhibiting any of these classic electronic control symptoms. Replacing a faulty 2007 STS Transmission Module can save you from a much more expensive and unnecessary repair.
- ✔ Erratic, harsh, or delayed gear shifts.
- ✔ The transmission getting stuck in one gear (often called “limp mode”).
- ✔ Check Engine Light illuminated with transmission-specific diagnostic trouble codes (DTCs) like P0700, P0751, P0756, etc.
- ✔ Loss of communication codes, such as U0101 (Lost Communication with TCM).
- ✔ Inaccurate gear indicator on the dashboard.
- ✔ A harsh “clunk” when shifting from Park into Drive or Reverse.
- ✔ The vehicle may not start or crank if the TCM fails to report the correct gear position (Park/Neutral) to the Engine Control Module.
Expert Pro Tip
A faulty TCM can sometimes mimic the symptoms of a mechanical transmission failure. Always verify that the TCM is the root cause by checking for specific communication error codes (like U-codes) with a professional scan tool before replacing expensive hard parts. This simple diagnostic step can save you thousands.
The Plug-and-Play Advantage: VIN Programming Included
Why choose our module? Unlike a new part from a dealership that requires an expensive trip for programming after installation, this module arrives ready to install. We use the latest GM software updates and your vehicle’s VIN to ensure the TCM has the correct calibration for your exact engine, transmission, and tire size. This process ensures seamless communication with your vehicle’s other control modules, restoring original factory performance.
This module is a direct replacement for part numbers 24239785, 24235224, and YLMU. It offers broad compatibility across a range of GM vehicles. While it is a perfect fit as a 2007 STS Transmission Module, it also fits other models including:
- Cadillac CTS (2010)
- Cadillac SRX (2007-2009)
- Saturn SKY (2007-2010)
- Pontiac Solstice (2006-2010)
Please confirm your original part number and check the fitment details to guarantee compatibility. After your purchase, simply provide us with your VIN, and we’ll handle the rest, shipping you a part that’s ready to solve your transmission woes.
Frequently Asked Questions
Do I need to do anything after installing this module?
Since the module is pre-programmed to your VIN, no further dealer flashing is required. Some vehicles may benefit from a simple transmission adaptive pressure relearn procedure, which can be performed with a capable bidirectional scan tool. This helps the transmission adapt to the new module for the smoothest possible operation.
How do I provide my VIN?
After placing your order, please send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the module to function in your car.
Is this a new part?
This is a high-quality, genuine GM replacement part that has been fully tested and programmed with the latest GM software updates for your specific vehicle. It is guaranteed to restore original functionality and performance.
What happens if I install it without programming?
The module will not work. Modern vehicle control modules are locked to a specific vehicle’s VIN and operating system. An unprogrammed module will not communicate with the other computers in your vehicle, resulting in a no-start condition or immediate transmission fault codes.
Will this fix my specific transmission problem?
This module is the correct solution for the electronic symptoms listed above, such as communication errors (U-codes), false sensor readings, and erratic solenoid commands. If your vehicle has a confirmed internal mechanical issue (like worn clutches or a bad valve body), this part will not correct it. Proper diagnosis is key to a successful repair.