Is Your Traverse Suffering from Mysterious Engine Problems?
If your 2018 or 2019 Chevrolet Traverse is experiencing frustrating issues like a persistent check engine light, erratic idling, poor fuel economy, or even a no-start condition, a failing Engine Control Module (ECM) is a very likely culprit. As the central computer for your engine, when the ECM begins to fail, it can cause a cascade of problems that are often misdiagnosed. I’ve spent over two decades in the garage, and I’ve seen countless drivers replace expensive sensors only to find the root cause was the ECM all along.
The Smart, Reliable Solution: A VIN-Programmed ECM
This isn’t just a used part pulled from a shelf. This is a genuine, tested OEM Engine Control Module, service number 12669908, that we professionally program to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures the ECM has the latest software updates directly from GM and is calibrated precisely for your Traverse’s unique configuration. It’s the key to restoring factory performance and reliability without the astronomical cost of a new module from the dealer.
Expert Pro Tip: The Importance of Post-Installation Procedures
From my 20+ years on the shop floor, I can’t stress this enough: replacing an ECM is like giving your vehicle a brain transplant. The new module needs to be properly introduced to the other systems. After installation, your vehicle’s security system (the vehicle theft deterrent system) won’t recognize the new ECM, which is why a theft relearn procedure is often required using a tool with access to GM’s TIS2WEB. Similarly, procedures like the crankshaft variation relearn help the ECM understand the precise position of the engine’s rotating assembly. Skipping these steps is the #1 reason for post-install issues. They are the buyer’s responsibility but are standard practice for any professional technician.
What to Expect from this 2018-2019 Traverse ECM
- โ Cost-Effective Repair: Get a fully functional, programmed OEM part for a fraction of the price of a new unit.
- โ VIN-Programmed Convenience: We handle the programming. Simply provide your VIN after purchase, and we’ll load the correct GM software and calibrations for your vehicle.
- โ Restored Performance: A properly functioning ECM is essential for optimal engine power, smooth shifting, and correct fuel efficiency.
- โ Direct-Fit Replacement: This is a genuine used module, ensuring it matches the original form factor and connectors for a straightforward installation.
Simple Installation Process
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any work on the electrical system.
- Locate the ECM: On most compatible models, the ECM is found in the engine compartment, often on the driver’s side.
- Swap the Module: Carefully disconnect the wiring harnesses and unbolt the old ECM. Mount the new module in its place and securely reconnect the harnesses. Ensure the connectors are clean and free of corrosion.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns: As noted, if the vehicle does not start, a theft relearn procedure is required. Other relearns (crankshaft, injectors, etc.) may also be necessary for optimal performance. This is the responsibility of the installer.
Guaranteed Fitment for Service Number 12669908
While this is a perfect solution for the 2018-2019 Traverse, this versatile ECM also fits a wide range of other GM vehicles. Please verify your original part has the service number 12669908. This part is compatible with the following models and options:
- Acadia: 2017 (2.5L, VIN Z), 2018 (2.5L)
- ATS: 2017 (2.0L)
- Cruze: 2017-2018 (Gasoline)
- CTS: 2017 (2.0L)
- Equinox: 2018 (1.5L, 2.0L), 2019 (1.5L, ID 12669908)
- LaCrosse: 2018 (2.5L)
- Malibu: 2017, 2018 (1.8L, 2.0L)
- Regal: 2018 (2.0L)
- Volt: 2017-2018 (Gasoline, ID 12669908)