Restore Peak Performance to Your GM Truck or SUV
Is your 2015-2016 Chevrolet Tahoe, Silverado, or other compatible GM vehicle suffering from perplexing issues like a persistent check engine light, rough idling, poor fuel economy, or even a no-start condition? These are often hallmark signs of a failing Engine Control Module (ECM). The ECM is the brain of your vehicle’s engine, meticulously managing everything from fuel injection and ignition timing to emissions control and transmission shifting. When it falters, the entire vehicle’s performance and reliability are compromised. This replacement Engine Control Module, part number 12669318, is the definitive solution to restore your vehicle’s factory-spec operation.
From the Diagnostic Bay
We had a 2016 Silverado 1500 come into the shop with a complaint of intermittent stalling at stoplights and a check engine light that would come and go. The customer had already replaced the spark plugs and an O2 sensor with no luck. Our initial scan pulled multiple communication error codes with no clear pattern. After running a full diagnostic, we traced the network instability back to the ECM. The internal processor was failing under thermal load, causing it to drop communication with other modules. We installed a VIN-programmed ECM, performed the necessary security relearn, and the truck ran perfectly. This case highlights how a faulty ECM can create ghost-like symptoms that are impossible to fix with simple part swaps.
Symptoms of a Failing Engine Control Module
- ✔ Check Engine Light is on or flashes intermittently.
- ✔ Vehicle experiences random stalling or hesitation.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Engine misfires, runs rough, or has poor acceleration.
- ✔ Transmission shifting becomes harsh or erratic.
- ✔ Vehicle fails to start, even with a good battery and starter.
- ✔ Communication errors with diagnostic scan tools.
The Superior Solution: A VIN-Programmed 2015-2016 Tahoe ECM
Don’t settle for a generic, unprogrammed module that will require expensive dealership visits for flashing and setup. Our process is designed for a seamless and effective repair. When you purchase this module, you provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians then use official GM equipment to flash the module with the latest, most stable software specific to your exact vehicle build. This ensures all factory parameters, anti-theft systems, and vehicle options are correctly configured before it even ships. This critical programming step eliminates compatibility issues and ensures a straightforward installation process, getting you back on the road faster.
This module is a direct replacement for a wide range of GM vehicles and is compatible with numerous original part numbers, ensuring broad applicability. It directly replaces the following part numbers: 12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, and 12669318.
Guaranteed Fitment for Your GM Vehicle
This Engine Control Module is verified to fit the following makes and models. Please match your vehicle and options to ensure proper fitment.
- ATS: 2014-2016
- CAMARO: 2016 (6.2L)
- CANYON: 2015-2016 (3.6L)
- COLORADO: 2015-2016 (3.6L)
- CORVETTE: 2014-2016
- CTS: 2014-2016
- ESCALADE / ESCALADE ESV: 2015-2016
- SIERRA 1500 / SIERRA DENALI 1500: 2014-2016
- SILVERADO 1500 PICKUP: 2014-2016
- SUBURBAN 1500: 2015-2016
- TAHOE: 2015-2016
- XTS: 2014-2016 (3.6L)
- YUKON / YUKON XL 1500: 2015-2016
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the ECM with the exact software and calibrations for your specific vehicle’s engine, transmission, and factory options. This ensures perfect compatibility and function right out of the box.
Is this module difficult to install?
The physical installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. However, some vehicles may require a security or anti-theft relearn procedure after installation, which can be done with specific key cycles or a capable scan tool.
Will this fix my check engine light?
If the check engine light is caused by a faulty ECM, then yes, this replacement part will resolve the issue. It’s crucial to properly diagnose the vehicle first to confirm the ECM is the root cause of the problem and not a separate sensor or wiring issue.
Is this a plug-and-play part?
Because we pre-program it to your VIN, it is as close to plug-and-play as possible. It eliminates the need for a trip to the dealer for software flashing. As mentioned, a simple security relearn procedure may be required on some models.
What is the difference between an ECM and a PCM?
ECM stands for Engine Control Module, while PCM stands for Powertrain Control Module. In many modern vehicles, the terms are used interchangeably. A PCM is an integrated module that controls both the engine and the transmission, whereas a dedicated ECM controls only the engine functions.