Description
2010 GMC Savana 6.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2010 GMC Savana 6.6L 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 require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
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




Justin Reynolds –
I ordered the 12646304 ECM for my 2010 GMC Savana, and the entire process was hassle-free. The unit arrived quickly with free shipping, which was a nice bonus. What really impressed me was how perfectly it was VIN programmed and ready to plug in right away. The communication from the seller was clear and timely, making me feel confident throughout the purchase.
Max Hudson –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2010 GMC Savana—installation was a breeze. The team kept me informed throughout, making the whole process smooth and hassle-free.