Description
2013 GMC Sierra 6.6L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2013 GMC Sierra 6.6L models. Each unit is pre-programmed to your vehicle’s VIN and updated to the latest manufacturer calibration for a true plug-and-play installation with no dealer visit required.
Built to OEM standards for reliability, shift quality, and long-term performance.
Strict Testing & Quality Assurance
Each TCM is fully refurbished, bench-tested, and inspected by our certified in-house technicians.
We use professional off-board testing equipment to verify:
Proper CAN-bus communication
Shift-solenoid activation
Input/Output sensor signal validation
Temperature and load simulation
Live-data performance under simulated driving conditions
No module leaves our facility without passing a full quality control inspection. This ensures you receive a unit that performs better than new at an unbeatable value.
Common Symptoms of a Faulty TCM
Hard shifting / delayed shifting
Gear slipping
Stuck in Limp Mode
Transmission overheating
Erratic gear changes
Poor fuel economy
Trouble codes related to shift solenoids or communication
Important Note
This TCM is fully programmed and updated and does not require additional programming after installation.
Simply install the unit and the vehicle will recognize it automatically.
If your original TCM has unique calibration or custom parameters, we also offer a TCM Cloning Service, which transfers all data-including VIN, shift adaptations, and configuration settings-into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Jacob Johnson –
I bought this TCM module for my 2013 GMC Sierra after the original one started acting up, and I couldn’t be happier with how smoothly everything went. The module came pre-programmed, so I just plugged it in, and the truck fired right up without any error codes or weird shifting. What really impressed me was how quickly it arrived—I wasn’t off the road for long. Plus, the shipping was secure and well-packaged, which made me feel confident about the whole purchase. It’s clear this is a quality part made to fit perfectly, and I’d definitely buy from this seller again if needed.
Jack Russell –
The plug-and-play setup made installation a breeze, and their quick responses to my questions were much appreciated. Shipping was super fast too!
Aiden Cooper –
This 2013 GMC Sierra transmission control module was exactly what I needed to get my truck running smoothly again. The programming was done perfectly, so installation was straightforward—just plug and go. Shipping was surprisingly fast, and the unit has been working flawlessly with no hiccups. Definitely a reliable fix for anyone facing transmission issues.
I was a bit nervous about replacing the TCM myself, but this module made the process simple and stress-free. It arrived quickly and was already programmed for my 6.6L Sierra engine. The plug-and-play design meant I didn’t have to mess with any complicated coding or setups, which saved me a trip to the mechanic. It’s been running perfectly ever since and has restored the transmission performance completely.
This programmed transmission control module fit my 2013 GMC Sierra perfectly and eliminated the shifting problems I was having. The unit was ready to install right out of the box, which saved me a ton of time and hassle. The delivery was prompt, and the quality feels
Nathan Hall –
Installed this TCM module in my 2013 GMC Sierra and it worked flawlessly right out of the box—super quick delivery too!
The plug-and-play setup was a breeze, and my transmission shifts smoother than ever now. Highly recommend!
Received my module fast, and it fit perfectly with no programming hassles. Great quality and performance!
This replacement TCM saved me a lot of headaches; it was pre-programmed and ready to go the moment it arrived.
Perfect fit and zero issues after installation—definitely worth the investment for your Sierra’s transmission.