

Are you experiencing frustrating and unpredictable transmission issues in your Saturn, Pontiac, or Cadillac? Symptoms like harsh shifting, delayed engagement, or a persistent check engine light can ruin your driving experience and cause serious concern. This is the definitive solution to restore your vehicle’s original, smooth performance. We provide a genuine GM Transmission Control Module (TCM), part number 24239785, that comes fully programmed to your specific vehicle using your VIN. This isn’t a generic part; it’s a precise, plug-and-drive fix tailored to your car.
A failing TCM can manifest in numerous ways, often triggering Diagnostic Trouble Codes (DTCs) and noticeable performance problems. If you’re dealing with any of the following, this module is the solution you need:
By replacing your old module with this professionally programmed 24239785 TCM, you are directly addressing the electronic brain of your transmission. We load the latest GM software updates, which often correct factory flaws and improve overall transmission longevity and behavior, ensuring a lasting and reliable repair.
Why is VIN programming so important? Your vehicle’s TCM doesn’t work in isolation. It constantly communicates with the Engine Control Module (ECM), ABS, and other systems. A generic or used TCM from another vehicle will have the wrong software and calibration, leading to immediate error codes, poor performance, or even a no-start condition. Our process of using your VIN to load the correct factory file ensures the programmed 24239785 TCM integrates seamlessly, just like the original part did when your car was new. It’s the key to a successful and permanent repair.
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically reply to your order confirmation email or use the website’s contact form. We cannot ship your part until we receive this information.
No. This module is shipped fully programmed and ready for installation. In most cases, no further action is needed. Your mechanic simply needs to install the part, and your vehicle will be ready to drive.
Please check the fitment list provided on this page. This module is compatible with the Saturn SKY (07-10), Pontiac Solstice (06-10), and various Cadillac CTS, STS, and SRX models. Matching one of the compatible part numbers (24235224, 24239785, YLMU) is the best way to confirm. If you’re still unsure, contact us with your VIN before ordering.
Yes, absolutely. Part number 24239785 is the updated, superseding part for 24235224 and YLMU. It is the correct and current replacement, and we will program it to function perfectly in your vehicle.
The warranty covers the module against failure for a full year from the date of purchase. If the unit fails within this period due to an internal defect, we will provide a replacement part. It does not cover issues caused by improper installation or other failing parts on the vehicle.
Category: GM
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To program your module, we require your full 17-digit VIN. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it.
Enjoy peace of mind with a one-year replacement warranty on this part, effective from the date you receive it. Labor costs are not covered.
If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience.
Return Address:
Highway71autoparts
9131 Highway 71 NE
Spicer, MN, 56288