Restore Your Truck’s Shifting Performance and Reliability
Is your 2019 or 2020 GMC Sierra or Silverado suffering from harsh, delayed, or unpredictable shifting? Are you seeing a ‘Service Transmission’ warning light that just won’t go away? You’re not just dealing with an annoyance; you’re facing a failing Transmission Control Module (TCM). As the electronic brain of your transmission, a faulty TCM can make your powerful truck feel unreliable and unsafe. This isn’t a problem you can ignore. This module, part number 24289415, is the direct, professional-grade solution you need to restore crisp, factory-correct shifting and get your truck back to performing its best.
The biggest headache with replacing a modern TCM is the mandatory, and often expensive, dealer programming. We eliminate that step entirely. Before this module ever leaves our facility, we flash it with the latest official GM software, perfectly matched to your truck using the Vehicle Identification Number (VIN) you provide. This means you receive a true plug-and-play part. No need for special scan tools, no trips to the dealership, and no surprise programming fees. For the professional mechanic, this saves valuable bay time. For the DIY enthusiast, it makes a complex job straightforward and achievable in your own garage.
Case Study: A Tricky Diagnosis
A customer brought in a 2019 Silverado 1500 with just 70,000 miles. The complaint was erratic shifting, especially on the 2-3 upshift, and an occasional ‘thud’ when coming to a stop. No check engine light, but our professional scan tool pulled a stored code U0101 (Lost Communication with TCM). The dealership had quoted him over $1200 for a new module plus programming and labor. We confirmed the TCM was the culprit. By providing him with this pre-programmed module, he was able to perform the swap himself in under an hour. The result? Shifting was immediately smooth, the communication code was cleared, and he saved hundreds of dollars. This is the value of a solution that’s both correct and convenient.
Is Your Truck Exhibiting These TCM Failure Signs?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, it’s a strong indicator that your module needs replacement. This is especially true for the 2019-2020 Sierra 1500 TCM and its Silverado counterparts.
- ✔ Harsh, banging, or delayed gear shifts.
- ✔ The transmission seems to be stuck in one gear (often called ‘limp mode’).
- ✔ ‘Service Transmission’ or Check Engine light is illuminated on your dashboard.
- ✔ Inability to shift into or out of a specific gear.
- ✔ Common Diagnostic Trouble Codes (DTCs) stored, such as P0700 (Transmission Control System Malfunction) or U0101 (Lost Communication With TCM).
- ✔ Poor fuel economy directly related to inefficient shifting patterns.
Your Straightforward TCM Installation Guide
Installing your new, pre-programmed TCM is a manageable job for anyone with basic tools. Here’s a general guide for a typical GM truck installation:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the TCM: On most of these trucks, the TCM is mounted on the driver’s side (LH) core support, near the radiator. It’s a silver box with large electrical connectors.
- Disconnect the Module: Carefully release the locking tabs on the electrical connectors and pull them straight out. Be gentle to avoid damaging the pins or wiring harness.
- Remove the Old Module: Unbolt the old TCM from its mounting bracket. There are typically a few small bolts holding it in place.
- Install the New Module: Mount your new, pre-programmed TCM onto the bracket and secure it with the bolts. Reconnect the electrical connectors, ensuring they click securely into place.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and allow it to idle for a few minutes. In some cases, a transmission relearn procedure may be beneficial but is often not required. Test drive to confirm smooth shifting.
Verified Fitment For Your GM Vehicle
This module is a direct replacement for service numbers 24042698, 24043411, 24043413, 24289415, and 24296206. It is guaranteed to fit the following vehicles:
- CAMARO 2022-2023
- SIERRA 1500 PICKUP 2019 (New Body Style), 2020
- SIERRA 2500 PICKUP 2020-2022
- SIERRA 3500 PICKUP 2020-2022
- SIERRA DENALI 1500 2019-2020
- SIERRA DENALI 2500 2020-2022
- SIERRA DENALI 3500 2020-2022
- SILVERADO 1500 PICKUP 2019 (New Body Style), 2020
- SILVERADO 2500 PICKUP 2020-2021
- SILVERADO 3500 PICKUP 2020-2021
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential. It allows us to load the exact, vehicle-specific software from GM into the TCM. This ensures perfect communication with your truck’s engine and other systems, guaranteeing correct shift points and performance without any additional programming.
Is this part difficult to install?
No. Because we handle the programming, the physical installation is very straightforward. It involves disconnecting the battery, unplugging the old module, unbolting it, and then bolting in the new one. Most DIYers with basic hand tools can complete the job in under an hour.
Will this fix my check engine light?
If the check engine light or ‘Service Transmission’ message is caused by a faulty TCM (with codes like P0700 or U0101), then yes, this part will resolve the issue and allow the codes to be cleared.
Is this a new or used part?
This is a high-quality, inspected, and tested recycled OEM part that has been programmed with the latest software for your vehicle, ensuring reliable performance and a perfect fit.
What if I have questions during installation?
Our team of experienced automotive professionals is here to help. We’ve been in the business for over 20 years and can provide the support you need to get the job done right.