Is Your Vehicle Running Rough, Stalling, or Showing a Check Engine Light?
A faulty Engine Control Module (ECM) can be the source of countless frustrating and difficult-to-diagnose issues. If you’re dealing with unpredictable performance, poor fuel economy, or a car that simply won’t start, the brain of your vehicle’s engine may be the culprit. This pre-programmed ECM is the definitive, hassle-free solution to restore your vehicle’s performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A failing engine computer can manifest in various ways. You might be experiencing one or more of the following problems, which this module is designed to correct:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to the processor, such as P0601, P0606, or other communication errors.
- Engine stalling, stumbling, or hesitating during acceleration.
- Rough or erratic idling.
- A no-start condition where the engine cranks but won’t fire up.
- Noticeable decrease in fuel efficiency.
- Transmission shifting problems or communication errors with the TCM.
Instead of a costly and time-consuming trip to the dealership, this module provides a direct path to a reliable repair. We take care of the complex programming, so you can focus on the straightforward installation. This is the ideal solution for both savvy DIYers and professional repair shops looking for a dependable 2017 GMC Acadia ECM 12667189.
Features That Deliver Real-World Benefits
- ✔ Ready for Installation: This ECM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). No extra trips to a mechanic or dealership for expensive flashing are required.
- ✔ Updated GM Software: We flash the module with the newest, most stable factory software available from GM. This ensures optimal engine performance, fuel efficiency, and emissions control.
- ✔ Guaranteed Compatibility: This unit is a direct-fit replacement for part numbers 12667189, 12667002, and 12666070, ensuring a perfect match for a wide range of GM vehicles.
- ✔ Solves Frustrating Issues: Directly addresses the root cause of many common engine performance problems, saving you time and money on diagnostics.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty.
An Expert’s Diagnostic Tip
“Before replacing an ECM, I always perform two simple checks: test the battery and inspect the main engine ground wires. A weak battery or a corroded ground can cause voltage issues that mimic ECM failure. Ensuring your vehicle’s electrical foundation is solid is the first step to a successful repair. This 2017 GMC Acadia ECM 12667189 is a reliable fix, but a healthy electrical system is key to its long-term performance.”
Frequently Asked Questions
Do I need to do any additional programming after I receive it?
No. We program the computer using the VIN you provide during checkout. It will arrive ready for installation, though some vehicles may require a simple security or key relearn procedure, which can typically be done without special tools.
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit VIN. We cannot ship your order until we have this information to program the module correctly.
Where can I find my vehicle’s VIN?
Your VIN can be found on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this part difficult to install?
For most models, the ECM is in an accessible location (like the LH engine compartment or behind the fan shroud) and installation involves disconnecting the battery and swapping the electrical connectors. However, we always recommend that installation be performed by a qualified technician to ensure everything is done correctly.
Will this fix my specific check engine light code?
This module is guaranteed to fix any internal faults within the ECM itself, including common processor codes. If your check engine light is caused by a different component, such as a faulty sensor or wiring issue, you will still need to address that separate problem.
Does this 2017 GMC Acadia ECM 12667189 fit other vehicles?
Yes, this ECM is compatible with a wide range of 2017-2019 GM models, including the Chevrolet Traverse, Impala, Equinox, Buick Enclave, Regal, and Cadillac XTS, among others. Please verify the part number to ensure an exact match for your vehicle.