Is Your GM Vehicle’s Brain on the Fritz?
If you’re dealing with a check engine light that won’t quit, erratic engine performance, or a vehicle that refuses to start, the problem might be deeper than a simple sensor. The Engine Control Module (ECM) is the central computer of your vehicle, managing everything from fuel injection and ignition timing to transmission shifts. When it starts to fail, it can cause a cascade of frustrating and hard-to-diagnose issues. In my 20+ years in the shop, I’ve seen these exact modules cause some of the most baffling symptoms on everything from a Cadillac ATS to a Silverado 1500.
Common Symptoms of a Failing GM ECM
A faulty ECM doesn’t always fail completely. Often, it begins with intermittent problems that can leave you stranded. Keep an eye out for these warning signs:
- ✔ Check Engine Light (CEL) is on with communication-related codes (U-codes) or internal processor fault codes.
- ✔ The engine cranks but refuses to start.
- ✔ Noticeable decrease in fuel economy for no apparent reason.
- ✔ Rough idling, stalling, or hesitation during acceleration.
- ✔ The vehicle goes into “limp mode” with reduced power.
- ✔ Automatic transmission shifting becomes harsh or unpredictable.
Expert Pro Tip: Check Your Grounds & Power First!
Before you condemn the ECM, do yourself a favor and perform a voltage drop test on the main power and ground circuits to the module. Over the years, I’ve seen dozens of vehicles where a corroded ground strap or a failing alternator caused voltage issues that mimicked a bad ECM. A new module won’t fix a bad ground, and poor voltage can damage the replacement part. A few minutes with a multimeter can save you a huge headache.
The Right Solution, Ready for Installation
Replacing the ECM on these GM vehicles used to mean a mandatory trip to the dealership for expensive programming. That’s no longer the case. This Engine Control Module, part number 12672537, is the direct solution to get your vehicle running properly again, without the dealership hassle. We take care of the critical programming step for you.
Here’s how it works: After your purchase, you simply provide us with your vehicle’s 17-digit VIN. Our technicians will then flash the module with the latest, most stable software release directly from GM, ensuring it’s perfectly matched to your vehicle’s specific configuration and options. When the module arrives, it’s ready for installation. In most cases, a simple security relearn procedure (which you can often do yourself) is all that’s needed to get back on the road.
Guaranteed Compatibility
This module is a direct replacement for a wide range of popular GM cars and trucks. It is fully compatible with the following original equipment part numbers:
12692067, 12676230, 12656993, 12662034, 12672537, 12673195, 12663391, 12672963, 12669318
Verified Vehicle Fitment
Please confirm your vehicle is on this list. This module fits the following models:
- ✔ ATS (2014-2016): 3.6L engines
- ✔ CAMARO (2016): 6.2L engines
- ✔ CANYON / COLORADO (2015-2016): 3.6L engines
- ✔ CORVETTE (2014-2016)
- ✔ CTS (2014-2016): 3.6L & 6.2L engines
- ✔ 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 engines
- ✔ YUKON / YUKON XL 1500 (2015-2016)
Don’t let a faulty computer keep your vehicle down. This professionally programmed ECM is the most reliable and efficient way to restore your vehicle’s performance and functionality.