Restore Your Vehicle’s Brainpower and Performance
Is your GM truck or SUV suffering from baffling electrical issues, a no-start condition, or a persistent Check Engine Light? A failing Engine Control Module (ECM) can bring your vehicle to a standstill, causing immense frustration and diagnostic headaches. This genuine GM Engine Control Module is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN. We take the complexity out of the repair, flashing the unit with the latest factory software so you can get back on the road with confidence and restored performance.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty module is the likely culprit. This professionally prepared Programmed 12674052 ECM is designed to resolve these exact problems:
- Complete no-start or intermittent starting issues
- Poor fuel economy and engine performance
- Erratic shifting or transmission problems
- Communication error codes (U-codes) with scan tools
- Check Engine Light with multiple, unrelated trouble codes
- Stalling or rough idling
Features & Benefits
- ✔ VIN-Specific Programming: We flash this module with your vehicle’s exact VIN and the newest GM calibrations, ensuring perfect communication with all other onboard systems.
- ✔ Saves Time & Money: Skip the expensive trip to the dealership for programming. This unit is ready for the required on-vehicle security relearn procedure, drastically reducing labor costs and downtime.
- ✔ Restores Factory Operation: By using the latest official software, this ECM restores the precise fuel delivery, ignition timing, and transmission control your vehicle had when it was new.
- ✔ Broad GM Compatibility: This module, also known by part numbers 12692068, 12704476, and others, is a direct-fit solution for a wide range of popular GM trucks, SUVs, and performance cars.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
As a technician, I’ve seen countless issues arise from installing a used, non-programmed computer. An ECM is not a simple component; it’s the central command center. Flashing it with your specific VIN doesn’t just make it ‘work’—it ensures all the subtle variations in your vehicle’s options, from the transmission type to the emissions system, are correctly managed. Buying a pre-flashed Programmed 12674052 ECM is the single most important step to guarantee a successful and lasting repair.
By providing us with your VIN at checkout, you ensure that the Programmed 12674052 ECM you receive is perfectly matched to your vehicle’s configuration. Please be aware that upon installation, a vehicle security relearn procedure will be necessary to sync the new module with your vehicle’s anti-theft system. This is a standard step for this repair and is the responsibility of the installer.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) contains critical information about your vehicle’s specific options, engine, transmission, and emissions equipment. We use it to load the exact, correct software from GM, ensuring the ECM functions perfectly upon installation.
What is a “theft relearn” and will I need to do it?
The theft relearn (or anti-theft relearn) is a security procedure that syncs the new ECM to your vehicle’s keys and ignition system. Yes, this procedure is required after installation. If it is not performed, the vehicle will not start. This typically requires a professional scan tool or access to GM’s programming software.
Is this part truly plug-and-play?
It is as close as it gets. The core engine and transmission software is pre-loaded for you. However, you MUST perform the vehicle security relearn. In some cases, other minor relearns like a crankshaft position variation relearn may also be needed to achieve optimal performance.
How can I be sure my old ECM is the problem?
Common signs include a no-start condition where the engine cranks but won’t fire, multiple random error codes, or a complete loss of communication with a diagnostic scan tool. It’s always best to have a qualified technician perform a full diagnostic, but these are strong indicators of ECM failure.
Which vehicles does this ECM fit?
This module fits a wide range of GM vehicles, including many 2016-2018 Silverado, Sierra, Tahoe, Yukon, Escalade, and Suburban models, among others. Please refer to the detailed fitment list on this page to confirm compatibility with your specific vehicle.