Restore the Flawless Performance of Your GM Truck
There’s nothing more frustrating than when the sophisticated transmission in your Sierra Denali or Silverado starts acting up. Harsh shifts, delayed engagement, or a warning light on the dash can ruin your driving experience and undermine your confidence in your vehicle. This genuine GM Transmission Control Module (TCM), part number 24289415, is the definitive solution to restore the smooth, responsive, and reliable performance you expect.
Forget the hassle and expense of a dealership visit for programming. We take care of the most critical step for you. Before this module ships, we flash it with the latest official GM software, programmed specifically to your truck’s Vehicle Identification Number (VIN). This ensures perfect communication between the engine and transmission, restoring factory-new shift patterns and resolving complex electronic issues right out of the box.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. This VIN-programmed module is designed to be the direct solution for:
- Erratic or harsh shifting between gears
- Delayed engagement when shifting from Park to Drive or Reverse
- Transmission-related Diagnostic Trouble Codes (DTCs) like P0700, P0751, or P0756
- The vehicle entering “limp mode,” with limited power and gear availability
- Unresponsive paddle shifters or manual mode
Installing this pre-programmed 2019-2020 Sierra Denali 1500 TCM is the most effective way to permanently resolve these problems and get your truck operating at its peak potential again.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: Arrives ready to install with the latest GM software matched to your specific vehicle, eliminating the need for expensive dealer programming.
- ✔ Restores Factory Shift Logic: Regain the smooth, crisp, and intelligent shifting your truck had when it was new.
- ✔ Direct-Fit OEM Component: Ensures perfect compatibility and seamless integration with your vehicle’s existing systems. This module is compatible with service numbers 24042698, 24043411, 24043413, 24289415, and 24296206.
- ✔ Solves Common Transmission Faults: The definitive fix for a wide range of electronic transmission issues, clearing persistent error codes and drivability problems.
- ✔ This unit is backed by our one-year replacement warranty.: Drive with confidence knowing your purchase is protected.
Expert Insight: Why VIN Programming is Non-Negotiable
The 8-speed and 10-speed automatic transmissions in modern GM trucks are incredibly complex systems. The TCM acts as the brain, making hundreds of calculations per second based on throttle position, speed, and engine load. Unlike older vehicles, a generic or non-programmed module simply will not work. Each 2019-2020 Sierra Denali 1500 TCM must be coded with the specific calibration file for your truck’s axle ratio, tire size, and powertrain combination. Our VIN-matching service isn’t just a convenience—it’s an essential step to guarantee your transmission operates with the precision and durability its engineers intended.
Frequently Asked Questions
Do I need to get this TCM programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. This means it arrives ready for installation, saving you time and the high cost of dealership programming services.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your part until we receive and validate your VIN.
Is this a brand new part?
This is a genuine, fully tested GM component that has been loaded with new, vehicle-specific software. It is guaranteed to restore your vehicle’s transmission to its proper operational state.
Will this fix my ‘Service Transmission’ light?
In the vast majority of cases where the TCM is diagnosed as the faulty component, this part will resolve the issue and allow the warning light to be cleared. We always recommend a proper diagnosis by a qualified technician to confirm the TCM is the root cause of your problem before ordering.
What is the full compatibility for this part?
This TCM fits a range of GM models, including: CAMARO 22-23; SIERRA 1500/2500/3500 19-22; SIERRA DENALI 1500/2500/3500 19-22; and SILVERADO 1500/2500/3500 19-21. Please verify your vehicle is on the list and that your old module matches one of the compatible service numbers.