Is your Sierra or Silverado experiencing erratic shifting, delayed engagement, or throwing transmission-related error codes? A failing Transmission Control Module (TCM) can cripple your truck’s performance, turning a dependable workhorse into an unpredictable liability. This genuine GM TCM, part number 24289415, is the definitive solution to restore your transmission’s precise, factory-commanded operation and get you back on the road with confidence.
Common Symptoms of a Failing TCM & Your Direct-Fit Solution
A faulty TCM can manifest in several ways, often getting progressively worse. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement:
- Harsh or jerky shifting between gears
- Delayed engagement when shifting from Park to Drive or Reverse
- The transmission getting stuck in one gear (limp mode)
- “Service Transmission” or Check Engine Light illumination on the dash
- Loss of communication with the TCM (U-series DTCs)
This module is not just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra expense out of the equation by pre-programming the unit to your truck’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. This ensures that the module communicates flawlessly with your engine and other vehicle systems, just as the original did. For anyone needing a reliable fix for their heavy-duty truck, this 2020-2022 Sierra 3500 TCM 24289415 is the correct and most efficient choice.
Key Features & Tangible Benefits
- ✔ No Dealer Visit Required: This module arrives pre-programmed to your truck’s specific VIN, saving you a costly trip and the associated labor fees for programming.
- ✔ Optimized Drivability: Flashed with the latest factory software from GM, ensuring your transmission operates with the most current shift strategies and performance parameters for towing and hauling.
- ✔ Guaranteed Compatibility: A genuine OEM part (service numbers 24042698, 24043411, 24043413, 24289415, 24296206), ensuring a perfect fit and seamless communication with your vehicle’s existing systems.
- ✔ Restored Performance: Eliminates harsh shifting and error codes, restoring the smooth, predictable transmission performance you rely on for work and daily driving.
- ✔ One-Year Replacement Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
An Expert’s Note on VIN Programming
“In modern trucks like the Sierra and Silverado, the TCM is the brain of the transmission. It’s in constant communication with the Engine Control Module (ECM), ABS, and other systems. A generic, non-programmed module simply won’t work—it would be like putting a brain in that doesn’t speak the body’s language. By programming this 2020-2022 Sierra 3500 TCM 24289415 to your specific VIN, we ensure it has the exact software, shift points, and operating parameters your truck was built with. This is the critical step that guarantees a successful, long-lasting repair without creating new electronic headaches.”
Don’t settle for a truck that doesn’t perform. Restore its core dependability with a professionally programmed TCM built to last. By ordering this 2020-2022 Sierra 3500 TCM 24289415, you are choosing a hassle-free path to getting your vehicle’s transmission functioning correctly again.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically reply to your order confirmation email or use the contact form on our website. We cannot ship the part until we have programmed it with your VIN.
Is this part truly plug-and-play?
Because we pre-program the module to your VIN, it is designed to be a direct installation. In most cases, no further programming is required. However, some vehicles may require a Transmission Service Fast Learn or Relearn procedure with a capable scan tool to finalize the installation and ensure optimal performance.
Will this fix my specific transmission problem?
This TCM resolves issues directly caused by a faulty module, such as communication errors, failed internal drivers, and software corruption. While it fixes the most common electronic transmission problems, it will not fix internal mechanical failures like a worn clutch or bad solenoid. Proper diagnosis is always recommended.
My old part has a different service number. Will this still work?
Yes. Part number 24289415 is the latest GM service number for this module and is fully compatible with the older numbers listed, including 24042698, 24043411, 24043413, and 24296206. We program it to function perfectly for your vehicle’s application.
Where is the TCM located on my 2021 Sierra 2500?
On most 2020-2022 GM HD trucks like the Sierra and Silverado, the Transmission Control Module is located on the LH (driver’s side) core support, near the front of the engine bay. Always disconnect the battery before attempting replacement.