Restore Flawless Shifting to Your GM Truck
Is your 2015-2016 Silverado 3500 experiencing frustrating transmission issues like harsh shifts, delayed gear engagement, or getting stuck in limp mode? You’re not just dealing with an annoyance; you’re facing a failure of the transmission’s brain—the Transmission Control Module (TCM). As a technician with over two decades of experience, I’ve seen firsthand how a faulty TCM can sideline even the toughest trucks. This isn’t just a part; it’s the central command for your transmission, and when it fails, your truck’s performance and reliability are compromised.
This is your direct-fit, hassle-free solution. We are offering a genuine GM Transmission Control Module, part number 24276411, which will arrive at your door fully programmed to your truck’s specific Vehicle Identification Number (VIN). This critical step means you can bypass the expensive and time-consuming trip to the dealership for programming. We load the latest GM factory software updates, which often resolve underlying drivability issues the original software may have had. By installing this module, you’re restoring the precise, smooth shifting performance your truck had when it was new.
A Technician’s Notebook
I remember a 2016 Sierra 2500 with the 6-speed (MW7) that came into the shop with a complaint of a violent 1-2 shift, but only when cold. The customer had already replaced the fluid and filter with no change. Scans showed no hard codes, just some intermittent communication flags that other shops had dismissed. Experience told me to look deeper into the TCM’s behavior. We monitored live data and saw the line pressure command spike erratically during that first shift. Instead of a costly transmission teardown, we recommended a new, properly programmed TCM. After installing this exact type of VIN-flashed module, the shift quality was perfect from the first cold start. It’s a classic case where the electronic brain, not the mechanical muscle, was the root cause.
Is Your Truck Exhibiting These Transmission Problems?
A failing TCM often gives clear warning signs. If you’re noticing any of the following, it’s highly likely that your transmission control module is the culprit. Replacing your 2015-2016 Silverado 3500 TCM can resolve these issues.
- ✔ Harsh, banging, or erratic gear shifts, especially between 1st and 2nd gear.
- ✔ The vehicle feels like it’s stuck in one gear (limp mode).
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ “Service Transmission” warning light illuminated on the dashboard.
- ✔ Check Engine Light on with transmission-related Diagnostic Trouble Codes (DTCs).
- ✔ Common DTCs include P0700 (TCM Requesting MIL), U0100 (Lost Communication With ECM/PCM), or specific solenoid performance codes.
A Straightforward Guide to Installation
One of the biggest benefits of this module is its simple installation process, made possible because the programming is done before we ship it. This turns a complex job into a manageable one for a DIYer or a quick one for a professional mechanic.
- Safety First: Disconnect the negative terminal from your truck’s battery and secure it away from the post to prevent accidental reconnection.
- Locate the TCM: On the 2015-2016 Silverado/Sierra HD trucks, the TCM is typically mounted on the left-hand (driver’s side) of the fan shroud in the engine bay.
- Disconnect Electrical Connectors: Carefully release the locking tabs on the wiring harness connectors and pull them straight out from the module. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the old TCM from its mounting bracket on the fan shroud. It’s usually held in place by a few small bolts.
- Install the New Module: Mount your new, pre-programmed TCM onto the bracket and secure it with the original bolts.
- Reconnect and Finalize: Plug the wiring harness connectors firmly back into the new TCM until they click into place. Reconnect the negative battery terminal. Start the vehicle and check for proper operation.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 24276411 and 24272004. It is guaranteed to fit the following GM vehicles with the specified options. Please verify your vehicle’s transmission option (e.g., 6-speed MW7 or 8-speed M5U) to ensure a perfect match.
- Cadillac Escalade / ESV: 2015-2017 (8-speed, opt M5U)
- Cadillac CTS: 2016 (ID 24276411)
- Chevrolet Camaro: 2016
- Chevrolet Silverado 1500: 2015-2016 (8-speed, opt M5U)
- Chevrolet Silverado 2500 / 3500: 2015-2016 (6-speed, opt MW7)
- GMC Sierra 1500 / Denali 1500: 2015-2016 (8-speed, opt M5U)
- GMC Sierra 2500 / 3500 & Denali 2500 / 3500: 2015-2016 (6-speed, opt MW7)
- GMC Yukon / Yukon XL 1500: 2015-2016 (8-speed, opt M5U)
Do I need to take this part to a dealer for programming?
Do I need to take this part to a dealer for programming?
No. The main benefit of our service is that this module comes fully programmed for your specific vehicle using the VIN you provide. This allows for a direct installation without any need for dealership tools or additional programming fees.
What is a TCM and what does it do?
The TCM, or Transmission Control Module, is a computer that controls all functions of your automatic transmission. It reads data from various sensors to determine the perfect moment to shift gears, control fluid pressure, and ensure smooth, efficient operation.
Where is this TCM located on my 2016 Silverado 3500?
For the 2015-2016 Silverado and Sierra 2500/3500 HD models, the TCM is located in the engine compartment, mounted to the driver’s side of the radiator fan shroud.
Will this part fix my truck’s hard shifting problem?
In a vast majority of cases, symptoms like hard shifting, delayed engagement, and limp mode on these trucks are directly caused by a failing TCM. This pre-programmed module is the definitive fix for these electronic-based transmission issues.
What information do you need from me after I order?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module without it. This ensures the software is a perfect match for your truck’s factory configuration.