Restore Flawless Shifting in Your GM Vehicle
Is your Cadillac, Sierra, or Silverado suffering from erratic shifting, delayed gear engagement, or a persistent check engine light? A failing Transmission Control Module (TCM) is often the culprit behind these frustrating and potentially damaging issues. This genuine GM TCM, part number 24276411, is the definitive solution, arriving at your door fully programmed with the latest factory software tailored specifically to your vehicle’s VIN. Eliminate the guesswork and the expensive trip to the dealership—this module is prepared for a direct installation, getting you back on the road with the smooth, responsive transmission performance you expect.
Common Symptoms of a Failing TCM
If you’re noticing any of the following signs, it’s a strong indicator that your transmission’s brain needs attention. Don’t let a small electronic issue turn into a major mechanical headache.
- ✔ Harsh or jerky shifting between gears.
- ✔ The transmission seems to get stuck in one gear (limp mode).
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ Unexplained Check Engine Light illumination.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0751, or other transmission-related faults.
- ✔ Poor fuel economy due to inefficient gear changes.
A Mechanic’s Field Tale
A customer brought in his 2016 Sierra 1500, convinced he needed a full transmission rebuild. It was slamming into gear and the dealer had quoted him over $4,000. After hooking up the scanner, I saw no signs of major mechanical failure, just a slew of communication error codes pointing to the TCM. Instead of a costly overhaul, we installed a VIN-programmed module just like this one. The entire job took less than an hour. The customer drove away with a perfectly shifting truck, saving thousands of dollars and a lot of stress. It’s a powerful reminder that sometimes the most complex problems have a surprisingly simple electronic solution.
Step-by-Step Guide to Get You Rolling
Installing your new 2016 CTS Transmission Module is a straightforward process. With the programming already handled, you can focus on the physical swap.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Old TCM: On most of these GM models, the TCM is mounted on the driver’s side. Check the frame rail under the hood (Camaro/CTS) or near the radiator core support/fan shroud (Trucks/SUVs).
- Disconnect and Remove: Carefully unplug the electrical connectors. Press the release tabs firmly to avoid breaking them. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed TCM in the same location. Secure the bolts and then firmly reconnect the electrical harnesses until they click into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Final Steps: Start the vehicle and let it idle for a few minutes. In some cases, a transmission adaptive pressure relearn procedure may be beneficial, but often the vehicle will re-adapt on its own over the first 50-100 miles of driving.
Compatibility Check: Does It Fit Yours?
This module is a direct replacement for part numbers 24276411 and 24272004 and fits the following vehicles with the specified options:
- Cadillac CTS: 2016
- Cadillac Escalade / ESV: 2015-2017 (8-speed, M5U)
- Chevrolet Camaro: 2016
- Chevrolet Silverado 1500: 2015-2016 (8-speed, M5U)
- Chevrolet Silverado 2500/3500: 2015-2016 (6-speed, MW7)
- GMC Sierra 1500 / Denali 1500: 2015-2016 (8-speed, M5U)
- GMC Sierra 2500/3500 / Denali 2500/3500: 2015-2016 (6-speed, MW7)
- GMC Yukon / XL 1500: 2015-2016 (8-speed, M5U)
Note: This 2016 CTS Transmission Module fits a wide range of GM vehicles. Always confirm your part number or contact us with your VIN to ensure perfect fitment.
Frequently Asked Questions
What do I need to do after purchasing?
After you complete your order, please send us your vehicle’s 17-digit VIN. We need this to load the correct, most up-to-date GM software onto the module before we ship it to you.
Is any extra programming required after installation?
No. This module is shipped fully programmed and ready for installation. This plug-and-play approach saves you a trip to the dealership and the associated programming fees.
Where is the TCM located on my truck?
On most GM trucks and SUVs from this era (like the Sierra, Silverado, and Yukon), the TCM is mounted on the driver’s side of the radiator core support or fan shroud. It’s typically easy to access from under the hood.
Will this fix my transmission’s hard shifting?
If the hard shifting is caused by a faulty module—which is a very common issue—then yes, this part is the correct fix. It resolves issues related to electronic control and communication. However, it will not fix internal mechanical failures like worn clutches or a bad valve body.
Is this a genuine GM part?
Yes, this is a genuine GM component, ensuring perfect communication with your vehicle’s other systems and reliable, long-term performance.