Restore Smooth, Confident Shifting to Your GM Truck
Is your 2015-2016 Sierra Denali 3500 suffering from harsh shifts, delayed gear engagement, or getting stuck in limp mode? These are classic signs of a failing Transmission Control Module (TCM). As the electronic brain of your transmission, a faulty TCM can make your powerful truck feel unreliable and frustrating to drive. This direct-fit replacement TCM, part number 24272004, is the definitive solution to get your truck’s transmission performing like new again.
The biggest challenge with replacing a modern TCM isn’t the physical installation—it’s the complex software programming required. We eliminate that expensive and time-consuming step for you. Before we ship your module, our experts will flash it with the latest official GM software, precisely matched to your truck’s Vehicle Identification Number (VIN). This ensures seamless communication with your vehicle’s other systems and provides a true plug-and-play repair.
A Technician’s Notebook: The All-Too-Common Limp Mode Scenario
I remember a 2016 Silverado 2500 that came into my bay, towed in because it wouldn’t shift out of first gear. The owner used it for his contracting business and was losing money every hour it was down. The dash was lit up with a ‘Service Transmission’ warning. A quick scan showed code U0101 – Lost Communication with TCM. After verifying power and ground at the module connector on the fan shroud, it was clear the TCM itself had failed internally. In the past, this meant ordering a blank module and waiting for a slot to open up for dealer programming. With this VIN-programmed solution, the fix is hours, not days. We got the contractor back on the road the same afternoon, and that’s the kind of efficiency every truck owner deserves.
Common Signs of a Failing TCM
- ✔ Erratic or harsh shifting between gears
- ✔ Transmission getting stuck in one gear (limp mode)
- ✔ Delayed engagement when shifting from Park to Drive or Reverse
- ✔ Check Engine Light or “Service Transmission” warning on the dash
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, U0101, or other transmission-related faults
- ✔ Inaccurate gear indicator display
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your truck’s battery before beginning any electronic component replacement.
- ✔ Locate the TCM: On most Sierra and Silverado HD trucks (2500/3500), the TCM is mounted on the driver’s side of the radiator fan shroud. It’s a silver box with large electrical connectors.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly. Then, unbolt the old module from its mounting bracket.
- ✔ Install the New Module: Bolt your new, pre-programmed TCM into place. Securely plug in the electrical connectors until they click, ensuring a solid connection.
- ✔ Final Steps: Reconnect the negative battery terminal. Start the vehicle and allow it to idle for a few minutes. Perform a test drive to confirm that shifting is smooth and all warning lights are off.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for part numbers 24272004 and 24276411, and is verified to fit the following vehicles with the specified options:
- CAMARO 2016 (underhood, LH frame rail)
- CTS 2016 (LH front rail, ID 24276411)
- ESCALADE & ESCALADE ESV 2015-2017 (LH radiator, 8 speed, opt M5U)
- SIERRA 1500 PICKUP 2015-2016 (LH core support, 8 speed, opt M5U)
- SIERRA 2500/3500 PICKUP 2015-2016 (LH fan shroud, AT, 6 speed, opt MW7)
- SIERRA DENALI 1500 2015-2016 (LH core support)
- SIERRA DENALI 2500/3500 2015-2016 (LH fan shroud, AT, 6 speed, opt MW7)
- SILVERADO 1500 PICKUP 2015-2016 (LH core support, 8 speed, opt M5U)
- SILVERADO 2500/3500 PICKUP 2015-2016 (LH fan shroud, AT, 6 speed, opt MW7)
- YUKON & YUKON XL 1500 2015-2016 (LH radiator, 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. This is the key benefit of our service. We program the module to your vehicle’s specific VIN before we ship it to you. It arrives ready to install, saving you hundreds in dealership programming fees.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship the part until we receive your VIN.
Is this a genuine GM part?
This is a high-quality replacement part, programmed with official GM software updates. It is designed to meet or exceed original equipment specifications for function and reliability.
Will this fix a P0700 trouble code?
A P0700 code simply means the TCM has detected a fault and requested the check engine light. While a failing TCM is a very common cause, proper diagnosis is always recommended. If the TCM is indeed the source of the fault, this part will resolve the issue.