Description
2016 Cadillac XTS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2016 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




Blake Anderson –
I purchased the 2016 Cadillac XTS 3.6L ECM from this seller and was impressed by their professional programming service. The unit arrived already VIN programmed and ready to install, which made the entire process hassle-free. They kept me informed throughout the shipping process, and delivery was prompt with no extra fees. Highly recommend for anyone needing a reliable and plug-and-play ECM solution.
Edward Smith –
The plug-and-play ECM arrived super fast and saved me a ton compared to the dealer. Installation was a breeze thanks to the great customer support.
Spencer Tucker –
The VIN programmed ECM arrived quickly with free shipping and worked perfectly right out of the box. Their team also answered my questions promptly, making the whole process smooth.