Restore Flawless Shifting to Your Cadillac Escalade
If you’re experiencing jarring shifts, delayed gear engagement, or a persistent check engine light in your 2015-2017 Cadillac Escalade, a failing Transmission Control Module (TCM) is a very likely culprit. As the brain of your automatic transmission, the TCM is responsible for executing precise, smooth shifts. When it falters, the luxury driving experience you expect is replaced with frustration and concern. This genuine GM replacement module, part number 24272004, is the definitive solution to restore your vehicle’s transmission performance and your peace of mind.
The biggest hurdle in replacing a modern vehicle module is the programming. We eliminate that completely. Before this part ships, our technicians will program it with the latest GM-authorized software, specifically matched to your vehicle using your VIN. This means it arrives at your door ready for a straightforward installation, saving you a costly trip to the dealership and hours of diagnostic headaches. This is the most efficient way to get your Escalade, Sierra, or Silverado back to operating as it should.
Case Study: A Tricky Diagnosis
I had a 2016 Cadillac Escalade with the 8-speed (M5U) transmission come into the shop last month. The owner complained of a harsh 2-3 shift and an occasional ‘Service Transmission’ message that would disappear on its own. A quick scan showed a stored history code, U0101 – Lost Communication with TCM. While this can sometimes be a wiring issue, my experience with these platforms pointed me directly to the module itself. After checking the main connectors for corrosion (they were clean), we ordered a pre-programmed TCM. The installation took less than 30 minutes, and a test drive confirmed the fix. The shifts were once again imperceptible, just as they should be in a vehicle of this caliber. This pre-programmed part saved my customer hundreds in dealer labor and got their vehicle back to them the same day.
Is Your GM Vehicle Showing These Symptoms?
A failing TCM can manifest in several ways. If you notice any of the following, it’s time to inspect your transmission’s control unit. This module is a common solution for:
- ✔ Harsh or erratic shifting between gears
- ✔ The transmission getting stuck in one gear (limp mode)
- ✔ Delayed engagement when shifting from Park to Drive or Reverse
- ✔ A lit Check Engine Light with transmission-related codes (e.g., P0700, P0751)
- ✔ “Service Transmission” or similar warnings on the driver information center
- ✔ Loss of communication codes, such as U0101
A Straightforward Guide to Your TCM Installation
One of the key benefits of this module is its simple, plug-and-play installation. Because we handle the programming, you or your mechanic can perform the swap without specialized computer equipment. While locations vary slightly, here is a general guide for a 2015-2017 Escalade:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the Module: On the Escalade and similar SUVs/trucks, the TCM is typically mounted on the driver’s side (LH) of the radiator support or fan shroud. It’s a silver metal box with several large electrical connectors.
- Disconnect the Wiring: Carefully release the locking tabs on the electrical harness connectors and pull them straight out from the module. Inspect the connectors for any signs of corrosion or damage.
- Remove the Old TCM: The module is held in place by a few bolts or nuts. Remove them and carefully take the old TCM out of the vehicle.
- Install the New Module: Mount your new, pre-programmed TCM in the same location and secure it with the original hardware.
- Final Connections: Firmly reconnect the electrical harnesses. You should hear or feel a click as they lock into place. Reconnect the negative battery terminal.
- Test Drive: Start the vehicle and allow it to idle for a moment. Perform a test drive to confirm that shifting is smooth and all warning lights are off. A transmission relearn procedure may be beneficial but is often not required.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 24272004 and 24276411. It is guaranteed to fit the following GM vehicles with the specified options:
- Cadillac Escalade: 2015-2017 (8-speed, opt M5U)
- 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)
Please provide your VIN upon purchase to ensure we load the correct software for your specific vehicle configuration.
Frequently Asked Questions
Do I need to take this part to a dealer to be programmed?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. It arrives ready for installation.
Where is the TCM located on my 2016 Sierra 1500?
On the Sierra and Silverado 1500 models, the TCM is typically located on the driver’s side (LH) core support, near the radiator.
What information do you need from me to program the module?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This ensures a perfect software match.
Will this fix my transmission’s hard shifting?
A faulty TCM is one of the most common causes of hard shifting, erratic behavior, and related error codes on these GM vehicles. While this part is a very likely fix, we always recommend a proper diagnosis to rule out mechanical or wiring issues.
Is this part compatible with part number 24276411?
Yes, this module, 24272004, is a direct, interchangeable replacement for part number 24276411.