Restore Flawless Shifting in Your GM Truck or Camaro
Are you dealing with frustrating transmission issues in your late-model GM vehicle? Symptoms like harsh, delayed shifts, a flashing check engine light, or the dreaded ‘Service Transmission’ message can bring your day to a halt. In my 20+ years as a diagnostic technician, I’ve seen these exact problems countless times, and they almost always point back to a failing Transmission Control Module (TCM). This isn’t just an annoyance; it affects your vehicle’s performance, fuel economy, and safety. This genuine GM Transmission Control Module is the definitive, reliable solution to get your vehicle operating as it should.
What makes this part the smartest choice is that it arrives at your door completely programmed to your vehicle’s specific VIN. We handle all the complex software flashing using the latest updates from GM before it ships. This means you can bypass the expensive trip to the dealership, saving you hundreds of dollars and significant downtime. It’s a direct-fit replacement, designed to restore the precise, smooth shifting you expect from your Silverado, Sierra, or Camaro.
From the Diagnostic Bay: The Case of the Limp-Mode Sierra
A customer brought in his 2020 Sierra 2500 HD, complaining it was stuck in third gear and the dash was lit up. He was worried about a catastrophic transmission failure. After connecting my scan tool, I pulled a U0100 ‘Lost Communication with ECM/PCM’ and a P0700 ‘Transmission Control System Malfunction’. While these codes can seem intimidating, experience told me to check the TCM first. On these trucks, the module’s location on the LH core support exposes it to heat and vibration. After confirming power and ground were good, it was clear the TCM itself had an internal fault. Instead of a multi-thousand dollar transmission rebuild, the fix was this exact GM Transmission Control Module. Once installed, the codes cleared, communication was restored, and the truck shifted perfectly—a straightforward repair that saved the customer a massive headache and expense.
Is Your Vehicle Showing These Symptoms?
- ✔ Harsh or erratic shifting between gears
- ✔ Delayed engagement when shifting from Park to Drive or Reverse
- ✔ Vehicle stuck in one gear (limp mode)
- ✔ “Service Transmission” or “Shift to Park” message on the dash
- ✔ Check Engine Light with transmission-related Diagnostic Trouble Codes (DTCs)
- ✔ Common DTCs: P0700, P0751, P0756, U0100, U0101
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the systems to discharge.
- ✔ Locate the TCM: On most Silverado and Sierra models, you’ll find the TCM mounted to the driver’s side (LH) core support near the radiator. On the Camaro, it’s located on the LH frame rail under the hood.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. Note the locking tab positions to avoid damage. Then, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Bolt the new, pre-programmed TCM into place. Securely reconnect the electrical harnesses, ensuring they click and lock.
- ✔ Final Steps: Reconnect the negative battery terminal. Start the vehicle and check for any warning lights. A short test drive will confirm that shifting performance has been restored. No further programming is required.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for service numbers 24042698, 24043411, 24043413, 24289415, and 24296206. It is verified to fit the following models:
- 2022-2023 CAMARO (Transmission Control; underhood, LH frame rail)
- 2019 SIERRA 1500 PICKUP (New Style; Transmission Control; LH core support)
- 2020 SIERRA 1500 PICKUP (Transmission Control; LH core support)
- 2020-2022 SIERRA 2500 / 3500 PICKUP (Transmission Control; LH core support)
- 2019-2020 SIERRA DENALI 1500 (Transmission Control; LH core support)
- 2020-2022 SIERRA DENALI 2500 / 3500 (Transmission Control; LH core support)
- 2019 SILVERADO 1500 PICKUP (New Style; Transmission Control; LH core support)
- 2020 SILVERADO 1500 PICKUP (Transmission Control; LH core support)
- 2020-2021 SILVERADO 2500 / 3500 PICKUP (Transmission Control; LH core support)
By purchasing this pre-programmed GM Transmission Control Module, you’re not just buying a part; you’re buying a complete, hassle-free solution. Restore your vehicle’s integrity and driving confidence today.
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, providing your 17-digit VIN is essential. We use it to load the exact, correct GM factory software for your vehicle’s specific configuration. This ensures perfect compatibility and function right out of the box.
Will this part require any additional programming after installation?
No. The module comes fully programmed and ready for installation. Once you install it, it will communicate with your vehicle’s other systems correctly without needing a trip to the dealer or a special scan tool.
Is this a difficult part to install myself?
For someone with basic mechanical skills, this is a very manageable job. The module is typically easy to access on the listed trucks and requires only common hand tools to swap. Our installation guide provides the key steps.
What if my original part number is different?
This module, 24296206, directly replaces several other service numbers, including 24289415, 24042698, 24043411, and 24043413. As long as your vehicle is on our compatibility list, this part will work perfectly.
How do I know my TCM is the problem?
Common indicators include erratic shifting, getting stuck in gear, communication error codes like U0100, and a P0700 trouble code. While a proper diagnosis is always best, these symptoms strongly point to a failing TCM in these specific GM models.