Is Your GMC Canyon Experiencing Frustrating Engine Problems?
A failing Engine Control Module (ECM) can bring your truck to a standstill. If you’re dealing with a persistent check engine light, erratic engine behavior, stalling, or a complete no-start condition, the ECM is often the culprit. In my 20+ years of diagnostics, I’ve seen how a faulty engine computer can mimic a dozen other problems, leading to wasted time and money on unnecessary parts. This is your direct, reliable solution.
This is a genuine, used GM Engine Control Module, service number 12669908, meticulously tested and ready for installation. We take the guesswork and high dealership costs out of the equation by pre-programming the module to your truck’s specific Vehicle Identification Number (VIN) before it ships. This ensures it communicates perfectly with the other systems in your Canyon.
Why Choose Our Programmed 2020-2021 Canyon ECM?
Getting your truck back to factory-spec performance is our top priority. We handle the complex programming so you can focus on the installation.
- โ VIN-Programmed for Your Truck: We flash the module with the latest GM software updates using your VIN. This isn’t a generic, one-size-fits-all part; it’s specifically prepared for your vehicle’s options and systems.
- โ Cost-Effective Solution: Get a reliable, tested OEM part without the exorbitant cost of a new module from the dealership.
- โ Restores Original Performance: A correctly functioning ECM is critical for optimal fuel economy, emissions, and engine power. This module will restore the precise control your engine needs.
- โ Tested and Verified: Pulled from a salvaged vehicle and rigorously inspected, this ECM is a proven component ready for a second life in your truck.
Expert Pro Tip: Check Your Grounds First
Before you replace any ECM, do a simple but critical check. I’ve seen countless vehicles in my shop where a faulty ECM was diagnosed, but the real problem was a loose or corroded main engine-to-chassis ground strap. A poor ground can cause voltage drops and communication errors that perfectly mimic a bad computer. Grab a wrench, locate the main ground strap, and ensure it’s clean, tight, and making solid contact at both ends. This 5-minute check can save you hundreds of dollars.
Easy Installation & Important Post-Install Steps
While the programming is done for you, modern vehicles require a few final steps after the new module is installed. Please be aware of these requirements.
- Safety First: Disconnect the negative terminal from your truck’s battery.
- Locate the ECM: On the GMC Canyon, the ECM is typically found in the engine bay.
- Disconnect and Remove: Carefully unplug the wiring harness connectors and unbolt the old module from its bracket.
- Install the New ECM: Mount your VIN-programmed ECM and securely reconnect the wiring harnesses. Ensure the connectors click into place.
- Reconnect Battery: Re-attach the negative battery terminal.
IMPORTANT NOTICE – POST-INSTALLATION PROCEDURES
This ECM is programmed with the correct calibration for your VIN. However, for security and system integration, additional steps are the responsibility of the installer.
- Vehicle Theft Deterrent System (VTD) Relearn: If the truck does not start after installation, the VTD system must be relearned. This procedure links the new ECM to your vehicle’s security system and requires a professional scan tool or access to the GM TIS2Web programming system.
- Other Relearns: Depending on your vehicle’s specific configuration, other procedures like a Crankshaft Position Variation Relearn or injector flow rate programming may be necessary to clear certain codes and ensure perfect operation.
Guaranteed Fitment for Service Part #12669908
While this listing is for the 2020-2021 GMC Canyon, this versatile ECM (part #12669908) is also a direct replacement for a wide range of other GM vehicles. Please verify your original part number matches before ordering.
- ACADIA: 2017 (VIN Z, 2.5L), 2018 (2.5L)
- ATS: 2017 (2.0L)
- CRUZE: 2017-2018 (Gasoline)
- CTS: 2017 (2.0L)
- EQUINOX: 2018 (1.5L or 2.0L), 2019 (1.5L, ID 12669908)
- LACROSSE: 2018 (2.5L)
- MALIBU: 2017, 2018 (1.8L or 2.0L)
- REGAL: 2018 (2.0L)
- VOLT: 2017-2018 (Gasoline, ID 12669908)