Description
2008 GMC Yukon 4.8L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2008 GMC Yukon 4.8L 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
Benjamin Cook –
I was really impressed with how straightforward the installation was on this Transmission Control Module. It came pre-programmed and fit perfectly into my 2008 GMC Yukon 4.8L, which saved me a lot of headache. Shipping was quicker than I expected, and the unit has been running smoothly with no issues since day one. Definitely a reliable replacement part that gets the job done.
Connor Morris –
I had been struggling with shifting issues on my 2008 GMC Yukon, and honestly, I wasn’t looking forward to dealing with a complicated fix. This TCM module arrived sooner than expected, and installation was surprisingly straightforward—no need for extra programming or trips to the shop. After swapping it in, the transmission shifted smoothly and the check engine light disappeared. It feels like I got my truck back to brand new performance without any hassle. Definitely recommend if you want a quick and reliable solution.
Colin Chapman –
I was really impressed with how straightforward the whole process was. The 2008 GMC Yukon 4.8L TCM came programmed and ready to plug and play, which saved me a ton of time and hassle. Shipping was quick and reasonably priced, so I didn’t have to wait long to get back on the road. The communication from the seller was spot on—they kept me informed every step of the way and answered my questions promptly. Overall, it felt like a smooth, professional experience from start to finish.
Ethan Green –
This TCM was a perfect fit for my 2008 Yukon and arrived quickly—installation was literally plug and play, no hassle at all. Super impressed with how smoothly it shifted afterward!
Got my transmission control module fast, and it worked right out of the box with no programming needed. Saved me a ton of time and headache!
Plugging this in was a breeze, and my Yukon’s shifting is smoother than ever. The quick delivery and ease of install made this a no-brainer purchase.
Excellent product with flawless performance; shipped fast and installed in minutes. My Yukon drives like new again!
Fast shipping and a truly plug-and-play module—had my transmission control module swapped out and running perfectly in no time. Highly recommend!
Russell Torres –
I bought the 2008 GMC Yukon 4.8L TCM Transmission Control Module and was really impressed with how straightforward the plug-and-play setup was. The module arrived quickly with free shipping, which was a nice bonus. Customer support was very responsive and answered all my questions promptly, making the whole process stress-free. Overall, the quality of the part seems excellent, and my transmission is shifting smoothly again.
Harvey Murphy –
Fast shipping and the plug-and-play setup made installing the 2008 GMC Yukon TCM a breeze. Great quality and hassle-free experience.