Restore Crisp, Reliable Shifting to Your GM Truck
Is your late-model GM truck suffering from erratic shifting, delayed gear engagement, or a frustrating “Service Transmission” light? These are classic signs of a failing Transmission Control Module (TCM). As a seasoned technician, I’ve seen firsthand how a faulty TCM can sideline even the toughest trucks. This isn’t just an annoyance; it’s a critical component failure that compromises your vehicle’s performance and reliability. This genuine GM Transmission Control Module, part number 24289415, is the definitive solution to get your truck back to operating as it should.
The best part? We handle the complex part for you. Before this module ships, we will professionally program it with the latest official GM software, tailored specifically to your truck’s Vehicle Identification Number (VIN). This means no expensive trips to the dealership for programming, no special tools required on your end. It arrives at your door ready for a straightforward installation, saving you significant time and money.
Is Your Truck Showing These Symptoms?
A failing TCM often gives clear warning signs. If you’re experiencing any of the following, it’s highly likely your module is the culprit. Ignoring these can lead to more significant transmission issues down the road.
- ✔ Harsh, clunky, or abrupt gear changes.
- ✔ Delayed shifting or a feeling of the transmission slipping between gears.
- ✔ The vehicle enters a “limp mode,” often stuck in one gear.
- ✔ Check Engine Light or “Service Transmission” warning illuminated on the dash.
- ✔ Common Diagnostic Trouble Codes (DTCs) stored, such as P0700, U0100, P0606, or specific solenoid performance codes.
Case Study: A Tricky Diagnosis
I remember a 2021 Silverado 2500 that came into the shop with a very intermittent issue. The owner reported that sometimes, after hitting a bump, the truck would shift hard for a few minutes and then return to normal. No consistent Check Engine Light. My initial scan showed a history code for U0100 – Lost Communication with TCM. After checking all the wiring and connections, which were perfect, I suspected an internal failure in the module itself. The vibration from the bump was just enough to cause a momentary logic failure on the circuit board. We installed a new, VIN-programmed TCM, and the problem was solved permanently. These modules are sensitive, and internal faults are the most common cause of failure I see.
Why a VIN-Programmed 2020-2022 Sierra 2500 TCM is Essential
Modern transmissions rely on precise data from the engine, wheels, and driver inputs to shift correctly. The TCM is the brain of this operation. Our programming service ensures this replacement module has the exact software calibration your truck was designed with from the factory, plus any subsequent performance and reliability updates from GM. This guarantees seamless communication with your vehicle’s other computers, like the Engine Control Module (ECM), and restores optimal shift patterns and fuel efficiency.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the TCM: On most 2019+ Sierra and Silverado trucks, the TCM is mounted to the left-hand (driver’s side) core support, near the radiator.
- ✔ Disconnect Connectors: Carefully release the locking tabs and unplug the electrical connectors from the old module. Inspect them for any corrosion or damage.
- ✔ Remove Old Module: Unbolt the old TCM from its mounting bracket. It’s typically held in place by a few small bolts.
- ✔ Install New Module: Mount your new, pre-programmed TCM onto the bracket and secure the bolts.
- ✔ Reconnect Everything: Plug the electrical connectors firmly into the new module until they click. Reconnect the negative battery terminal.
- ✔ Final Check: Start the vehicle and check for any warning lights. Take it for a test drive to confirm smooth shifting has been restored. No further programming is required.
Verified Vehicle Compatibility
This module, programmed to your VIN, is a direct replacement for part number 24289415 and is compatible with service numbers 24042698, 24043411, 24043413, and 24296206. It is guaranteed to fit the following vehicles:
- ✔ 2022-2023 Chevrolet Camaro
- ✔ 2019-2020 GMC Sierra 1500 / Sierra Denali 1500 (New Body Style)
- ✔ 2019-2021 Chevrolet Silverado 1500 (New Body Style)
- ✔ 2020-2022 GMC Sierra 2500 / 3500 & Denali 2500 / 3500
- ✔ 2020-2021 Chevrolet Silverado 2500 / 3500
Frequently Asked Questions
Do I need to do anything after I install it?
No. Because we program the module to your specific VIN before shipping, it is a true plug-and-play installation. No dealer visits or special scan tools are needed for programming.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program or ship the module without it.
Is this a genuine GM part?
Yes, this is a genuine GM component, part number 24289415, loaded with the latest official GM software for your vehicle.
Will this fix a U0100 communication code?
In many cases, yes. A U0100 code indicates a loss of communication with the TCM. If the wiring and connectors are intact, the module itself is the most common point of failure, and replacing it will resolve the code.
What is the location of the TCM on my 2020 Sierra 2500?
The Transmission Control Module is typically located on the driver’s side of the vehicle, mounted to the radiator core support in the engine bay.