Restore Your Truck’s Shifting Precision
Is your Silverado or Sierra suffering from harsh shifts, delayed gear engagement, or getting stuck in limp mode? As a technician with over 20 years of experience, I’ve seen these symptoms countless times. The culprit is often a failing Transmission Control Module (TCM). This isn’t just an annoyance; it’s a critical failure that compromises your vehicle’s performance and reliability. You need a solution that works right out of the box, and this is it. This is a genuine GM TCM, part number 24289415, that arrives at your door pre-programmed with the latest factory software matched specifically to your vehicle’s VIN.
Forget the expensive dealership visit and the hassle of scheduling a programming appointment. We handle the complex part for you. By flashing the module before it ships, we ensure that it communicates perfectly with your truck’s engine and powertrain systems. This direct-fit, pre-programmed GM TCM is the most efficient way to get your truck back to the smooth, decisive shifting you expect. It’s the exact repair I would perform in my own service bay for a permanent, reliable fix.
A Technician’s Notebook: The Case of the Confused Sierra
A 2019 Sierra 1500 came into the shop with a classic complaint: “It doesn’t know what gear it wants to be in.” The owner reported erratic upshifts and a jarring downshift when coming to a stop. We pulled the codes and found a U0101 (Lost Communication with TCM) and a P0700. After verifying the wiring harness and connectors were secure and free of corrosion—a critical first step—we confirmed the internal logic of the original TCM was failing. Instead of a costly dealer replacement, we installed a VIN-programmed module just like this one. The post-install road test was perfect. Every shift was crisp and smooth, exactly as GM intended. The owner was back on the road the same day, saving hundreds compared to the dealership quote.
Is Your Truck Showing These Symptoms?
A failing TCM can manifest in several ways. If you’re experiencing any of the following, this module is the likely solution.
- ✔ Harsh, erratic, or delayed shifting
- ✔ Vehicle stuck in one gear (limp mode)
- ✔ Flashing “Service Transmission” or Check Engine Light
- ✔ Inaccurate gear indicator on the dashboard
- ✔ Common Diagnostic Trouble Codes (DTCs) such as P0700, U0101, P060B, or solenoid performance codes.
A Straightforward Guide to Installation
Installing your new TCM is a manageable job for a DIYer or any professional mechanic. With the programming already done, it’s a true plug-and-play process.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the TCM: On most compatible Silverado and Sierra models, the TCM is mounted on the left-hand (driver’s side) core support or frame rail in the engine bay. For the Camaro, it is located on the LH frame rail under the hood.
- Disconnect Connectors: Carefully release the locking tabs and unplug the electrical connectors from the old module. Inspect them for any corrosion or damage.
- Remove the Old Module: Unbolt the old TCM from its mounting bracket. It’s typically held in place by a few small bolts.
- Install the New Module: Mount your new, pre-programmed TCM onto the bracket and securely fasten the bolts.
- Reconnect Everything: Plug the electrical connectors firmly into the new module until they click into place. Reconnect the negative battery terminal.
- Final Check: Start the vehicle and check for any warning lights. Take it for a test drive to confirm that shifting performance has been restored.
Verified Vehicle Compatibility
This module is a direct replacement for service numbers 24042698, 24043411, 24043413, 24289415, and 24296206. It is guaranteed to fit the following GM vehicles:
CAMARO 2022-2023 (underhood, LH frame rail)
SILVERADO 1500 PICKUP 2019 (new style, mirrors on door skin)
SILVERADO 1500 PICKUP 2020
SILVERADO 2500/3500 PICKUP 2020-2021
GMC:
SIERRA 1500 PICKUP 2019 (new style, mirrors on door skin)
SIERRA 1500 PICKUP 2020
SIERRA 2500/3500 PICKUP 2020-2022
SIERRA DENALI 1500 2019-2020
SIERRA DENALI 2500/3500 2020-2022
Frequently Asked Questions
Frequently Asked Questions
How does the VIN programming work?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this number to load the exact, most current GM-specified software for your truck’s configuration directly onto the module before we ship it to you.
Is any additional programming needed after installation?
No. Because we program the module to your VIN before shipping, it is a direct plug-and-play installation. No further actions or dealer visits are required for programming or setup.
Is this a new or used part?
This is a genuine, quality-inspected GM service part that has been prepared with new software for your vehicle. It meets or exceeds original equipment specifications for performance and reliability.
Will this fix my transmission problem for sure?
This module corrects failures internal to the TCM itself, which are responsible for the vast majority of the symptoms listed. However, proper diagnosis is key. Ensure your vehicle’s wiring, connectors, and transmission fluid levels are checked, as these can sometimes cause similar issues.
What is the difference between all the part numbers listed?
GM often releases updated part numbers (supersessions) for a single component over its lifespan. The numbers 24042698, 24043411, 24043413, and 24296206 are all earlier service numbers for this exact module. Part 24289415 is a compatible replacement for all of them.