Is your Chevrolet, Buick, or GMC vehicle suffering from baffling electrical issues, a persistent check engine light, or a no-start condition? A failing Engine Control Module (ECM) is often the culprit, leaving you stranded and frustrated. Restore your vehicle’s performance and your peace of mind with this professionally programmed ECM, a direct-fit solution for part numbers 12668986 and 12692201.
We take the guesswork out of the repair. Simply provide us with your vehicle’s VIN after purchase, and our experts will flash the module with the very latest, most stable software updates directly from GM. This ensures that when the part arrives, it’s ready for a straightforward installation, communicating perfectly with your vehicle’s existing systems. This is the definitive solution for getting your truck, SUV, or sedan running reliably again.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty ECM is the likely cause. This module is the solution for:
- Persistent Check Engine Light (CEL) with codes like P0601, P0606, or other internal processor faults.
- Unexplained stalling or rough idling.
- Noticeable decrease in fuel economy.
- Erratic automatic transmission shifting.
- Engine misfires or hesitation under acceleration.
- Complete no-start or intermittent starting issues.
By replacing your old unit with this correctly configured 2017-2020 Chevy Trax Programmed ECM 12668986, you are directly addressing the core of these problems and restoring your vehicle’s factory-specified operation.
Features & Benefits
- ✔ VIN-Specific Programming: We program the module to your exact VIN, ensuring it works seamlessly with your vehicle’s specific options and anti-theft system for a true plug-and-play experience.
- ✔ Latest GM Software: Your ECM arrives with the newest manufacturer updates, often improving fuel efficiency, emissions, and drivability over the original programming.
- ✔ Guaranteed Fitment: This is a genuine OEM-spec part, guaranteeing perfect physical fitment and electrical connections for a wide range of GM models, including the Silverado 2500, Sonic, Encore, and Suburban 3500.
- ✔ Cost-Effective Repair: Avoid the high costs and scheduling hassles of a dealership visit. We provide a dealer-level service delivered directly to your door.
- ✔ Warranty Protection: Drive with confidence knowing your investment is secure. This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of Programming
Many people think they can just swap an ECM from another vehicle. In modern GM cars and trucks, that’s a recipe for failure. The ECM is not just a component; it’s the vehicle’s central computer, tied directly to the ignition keys, fuel injectors, and transmission through the Vehicle Anti-Theft System (VATS) and specific calibrations. Our VIN-programming service isn’t just a convenience—it’s essential. We ensure the module has the correct digital ‘handshake’ to communicate with your vehicle, preventing a no-start condition and ensuring every system operates precisely as the engineers intended.
Don’t let a faulty computer keep your reliable vehicle off the road. This 2017-2020 Chevy Trax Programmed ECM 12668986 is your path to a lasting, effective repair. After placing your order, please send us your VIN so we can begin the programming process and get your part shipped out promptly.
Frequently Asked Questions
How does the programming process work?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. Our technicians use this number to access the latest official GM software for your specific make, model, and year. We then flash this software onto the ECM, ensuring it is perfectly matched to your vehicle before we ship it.
Is this a difficult part to install?
For most DIYers with basic tools, the physical installation is straightforward as it is a direct-fit part. While our programming handles most of the work, some GM vehicles may require a simple ‘Security Relearn Procedure’ after installation to sync the new ECM with your keys. This procedure can typically be done without special tools and instructions are widely available online.
Will this fix my check engine light?
This ECM will resolve any Diagnostic Trouble Codes (DTCs) that are directly caused by a failing internal processor or memory in the original module (e.g., P0601, P0606). If your check engine light is on due to a separate issue, like a bad oxygen sensor or a loose gas cap, you will still need to address that specific problem.
Where can I find my vehicle’s VIN?
Your VIN can be found in several places: on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
Does this ECM fit other vehicles besides the Trax?
Yes. While the 2017-2020 Chevy Trax Programmed ECM 12668986 is a perfect fit for that model, this part is also specified for several other GM vehicles, including the 2017-2018 Silverado/Sierra 2500 (6.0L), 2017-2018 Sonic, 2017-2018 Encore (1.4L), and 2017 Suburban 3500. It is a direct replacement for part numbers 12668986 and 12692201.
What is the warranty on this part?
This unit is backed by our one-year replacement warranty., giving you confidence and security in your purchase.