Restore Your Truck’s Shifting Performance and Reliability
If you’re dealing with the frustration of erratic shifting, gear hunting, or a check engine light on your 2015-2016 Sierra 2500, a failing Transmission Control Module (TCM) is a very likely culprit. As a technician with over two decades of experience, I’ve seen firsthand how a faulty TCM can sideline even the toughest trucks. It’s not just an annoyance; it’s a critical component for your vehicle’s performance and safety. This module, part number 24272004, is the definitive solution to get your transmission operating smoothly again.
What sets this part apart is our comprehensive programming service. Forget about costly dealership visits and the headache of coordinating programming after the part arrives. We handle it all for you. Simply provide your vehicle’s VIN at checkout, and my team will flash this 2015-2016 Sierra 2500 TCM with the latest, most stable software directly from GM. This ensures perfect communication between your engine and transmission, restoring the crisp, predictable shifts you expect from your truck. It arrives at your door ready for a straightforward installation.
A Technician’s Notebook
I remember a 2016 Silverado 2500 that came into the shop with a classic complaint: harsh 2-3 shifts and occasionally getting stuck in 3rd gear (limp mode), especially after towing. The owner had already replaced fluid and filters with no luck. A quick scan showed a U0101 (Lost Communication with TCM) code that would appear intermittently. Instead of a complex wiring issue, experience pointed to an internal TCM failure, common in these workhorses. We sourced this exact pre-programmed module. The customer was back on the road in under an hour, without the typical 2-day wait and programming fee from the local dealer. He called back a week later, thrilled that his truck drove ‘better than it had in years’. That’s the difference a quality, correctly programmed part makes.
Common Signs of a Failing Transmission Module
- ✔ Check Engine Light is illuminated with transmission-related codes (e.g., P0700, U0101, P0751).
- ✔ Harsh, delayed, or unpredictable gear shifts.
- ✔ The transmission seems to ‘hunt’ for the correct gear.
- ✔ Vehicle enters ‘limp mode,’ getting stuck in one gear.
- ✔ Poor fuel economy due to inefficient shifting.
- ✔ Inability to shift into or out of a specific gear.
A Straightforward Guide to Installation
Installing your replacement 2015-2016 Sierra 2500 TCM is a manageable job for a confident DIYer or any professional mechanic. Since we’ve handled the programming, no special electronic tools are needed.
- Safety First: Always disconnect the negative terminal from your truck’s battery before beginning any electrical work.
- Locate the TCM: On most Sierra/Silverado HD trucks from this era, the TCM is mounted on the driver’s side of the fan shroud in the engine bay.
- Disconnect Connectors: Carefully release the locking tabs and unplug the main 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 on by a few small bolts.
- Install the New Module: Mount your new, pre-programmed TCM onto the bracket and secure it with the bolts.
- Reconnect Everything: Plug the electrical connectors firmly back into the new module until they click into place. Reconnect the negative battery terminal.
- Final Check: Start the vehicle and allow it to idle for a few minutes. Check for any warning lights and then take it for a test drive to confirm smooth shifting has been restored.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 24272004 and 24276411. It is guaranteed to fit the following GM vehicles. Please confirm your model and transmission option (e.g., 6-speed MW7 or 8-speed M5U) before ordering.
- ✔ 2016 CAMARO (Underhood, LH frame rail)
- ✔ 2016 CTS (LH front rail, ID 24276411)
- ✔ 2015-2017 ESCALADE & ESCALADE ESV (8-speed, opt M5U)
- ✔ 2015-2016 SIERRA 1500 & DENALI 1500 (8-speed, opt M5U)
- ✔ 2015-2016 SIERRA 2500/3500 & DENALI 2500/3500 (6-speed, opt MW7)
- ✔ 2015-2016 SILVERADO 1500 (8-speed, opt M5U)
- ✔ 2015-2016 SILVERADO 2500/3500 (6-speed, opt MW7)
- ✔ 2015-2016 YUKON & YUKON XL 1500 (8-speed, opt M5U)
By purchasing this pre-programmed 2015-2016 Sierra 2500 TCM, you’re not just buying a part; you’re buying a complete, hassle-free solution to a complex problem. Restore your truck’s factory performance and get back to work with confidence.
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming or flashing after I receive this TCM?
No. This module arrives 100% ready for installation. We flash it with the latest GM software using your VIN before it ships, saving you a trip to the dealership.
What information do you need from me?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific truck.
Where is the TCM located on my 2015 Sierra 2500?
On the 2015-2016 Sierra and Silverado 2500/3500 models, the Transmission Control Module is typically located in the engine bay, mounted to the driver’s side of the radiator fan shroud.
Will this fix my check engine light?
If your check engine light is on due to codes related to the TCM (like U0101, P0700, or specific shift solenoid codes), then yes, replacing the faulty module should resolve the issue and allow the codes to be cleared.
Is this a genuine GM part?
This is a quality, fully tested component that is programmed with official GM software. It is a direct-fit replacement for the original part numbers 24272004 and 24276411.