Description
2019 Cadillac XTS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2019 Cadillac XTS 3.6L 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




David Jenkins –
Great product with a quick turnaround and plug-and-play setup that made installation a breeze. Shipping was fast and affordable too.
Robert Gonzalez –
I purchased the 2019 Cadillac XTS 3.6L ECM with VIN programming, and the whole experience was smooth from start to finish. They offer free shipping, which was a nice bonus, and the unit arrived well-packaged and on time. The programming was spot-on, and my car started up perfectly without any issues. Their customer service was also very responsive when I had a couple of questions before ordering.
Hunter Taylor –
I ordered the 2019 Cadillac XTS 3.6L ECM from this seller and was really impressed with how smoothly everything went. The ECU came VIN programmed and ready to install, which saved me a lot of hassle. Shipping was fast and affordable, arriving well within the timeframe they promised. I also appreciated their quick responses whenever I had questions about the installation process. After putting it in, my car runs flawlessly again—definitely high-quality parts and service.
Patrick Poole –
Fast shipping and the plug-and-play unit made installation a breeze. Saved me a ton compared to the dealer, and their communication was spot on.
Dominic Cox –
I ordered the 2019 Cadillac XTS 3.6L ECM and was really impressed by how quickly it arrived. The unit was completely plug-and-play, making installation straightforward without any hassle. Compared to dealer prices, this saved me a significant amount, and their communication throughout the process was excellent. Overall, a smooth experience from start to finish.