Description
2020 Chevrolet Blazer 3.6L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2020 Chevrolet Blazer 3.6L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $300 CAD / $215 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Jack Reed –
I was a bit nervous about swapping out the ECM on my 2020 Chevy Blazer, but this unit made the process so straightforward. It came VIN programmed right out of the box, which saved me a ton of time and hassle. Installation was truly plug and play—no extra coding or complicated setups needed. I appreciated the quick shipping too, it arrived faster than I expected. After the swap, my Blazer runs smoother than ever and all the dashboard lights stayed off. Definitely a solid purchase!
Brian Edwards –
This ECM for my 2020 Chevrolet Blazer fit perfectly and was ready to go right out of the box. The VIN programming was spot on, which saved me a lot of hassle during installation. Shipping arrived sooner than expected, and the overall quality feels very solid. Definitely a reliable upgrade if you need a replacement ECU without complications.
Hunter Bailey –
Perfect fit and shipped quickly—installed it in minutes and my Blazer runs like new! Highly recommend for anyone needing a reliable ECM swap.
Super easy installation with zero hassle. The ECU came VIN programmed exactly as promised, saving me tons of time.
Received the part faster than expected, and it worked flawlessly right out of the box. Definitely a stress-free upgrade for my Blazer!
This ECM/ECU was a seamless plug-and-play solution. Very impressed with the quality and how smooth the process was from start to finish.
Great product and excellent customer support helped me get everything set up perfectly. My 2020 Blazer feels brand new again!