Description
2009 Chevrolet Avalanche 5.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Chevrolet Avalanche 5.3L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566




Bruce Little –
I was really impressed with how smoothly everything went with my purchase of the 2009 Chevrolet Avalanche ECM. The unit arrived quickly, and the shipping cost was very reasonable, which was a nice bonus. What stood out the most was the professional programming service—once installed, my truck fired right up with no issues. The communication was clear and timely too; I got answers to all my questions within hours. Overall, this made what could have been a stressful repair surprisingly easy and hassle-free.
Trevor Hayes –
I was a bit nervous about replacing the ECM on my 2009 Chevy Avalanche, but this unit arrived quickly and was already VIN programmed, which made the installation so much easier. The plug-and-play setup meant I didn’t have to worry about complicated programming steps, saving me a lot of time. Shipping was free and arrived right on schedule, which was a nice bonus. When I had a couple of questions about the installation process, their customer service responded promptly and helped me out. Overall, a smooth experience from start to finish and my truck runs perfectly now.
Max Marshall –
Received the VIN programmed ECM quickly with free shipping, and it plugged right in—no issues at all. Customer support was super helpful and answered all my questions promptly.
Lucas Edwards –
Fast shipping and the unit was truly plug-and-play. Saved me a bundle compared to dealer prices and installation went smoothly.
Great communication and super quick turnaround. The ECM fit perfectly, was easy to install, and saved me tons versus dealer repairs.
Shipping was really quick, and the ECU hooked up without any hassle. This service definitely kept my costs way down compared to going through the dealer.
The updated PCM arrived fast and installed flawlessly—plug-and-play as promised. Saved me a lot over dealership quotes with professional service from start to finish.
Fast delivery and the unit was ready to go right out of the box. Installation was smooth and this saved me big time compared to dealer pricing.
Travis Miles –
I purchased the 2009 Chevrolet Avalanche 5.3L ECM from this seller and was really impressed by how smoothly everything went. The unit arrived quickly with free shipping, and it was already VIN programmed, which saved me a lot of hassle. Their communication was excellent too—they kept me informed every step of the way and answered my questions promptly. Installation was straightforward, and my truck runs perfectly now.