Is Your GM Truck, Van, or Car Acting Up?
If you’re dealing with a persistent Check Engine Light, a no-start condition, erratic engine behavior, or strange transmission shifting, the problem often points directly to the heart of your vehicle’s electronics: the Engine Control Module (ECM). As the central computer, the ECM manages everything from fuel injection and ignition timing to emissions controls and communication with other modules. When it fails, the symptoms can be confusing and frustrating.
A Technician’s Real-World Story
“A customer’s 2012 Express 3500 work van came in last week with a no-start condition after getting hot. No codes, just crank-no-start. After it cooled down, it would fire right up. We see this all the time. The ECM, mounted on the engine block in those vans, gets cooked by constant heat cycles. The internal processors develop microscopic cracks in the solder, causing an open circuit when they expand with heat. We swapped in a pre-programmed ECM, and the van was back in service the same day, saving the owner from losing a day’s work. This isn’t just a part; it’s a solution to a very common failure.”
The Direct, Reliable Solution: A VIN-Programmed ECM
Don’t waste time and money at the dealership. This Engine Control Module is the definitive fix for a wide range of GM vehicles. We take the guesswork and hassle out of the repair by programming the module specifically for your vehicle using your VIN. This ensures that it arrives with the latest, most stable software from GM, ready for a straightforward installation.
Common Symptoms of a Failing GM ECM:
- ✔ Check Engine Light is on with communication-related fault codes (U-codes).
- ✔ Engine cranks but will not start, especially when warm.
- ✔ Noticeable decrease in fuel economy.
- ✔ The engine stalls, stumbles, or misfires intermittently.
- ✔ Automatic transmission shifts harshly or at the wrong times.
- ✔ Loss of power and poor acceleration.
Why Choose Our Pre-Programmed Module?
Getting your vehicle back to factory-spec operation is our priority. By programming the module before shipping, we eliminate the need for expensive dealer-only tools or additional programming fees. This is the most efficient way to complete the repair.
- ✔ Programmed for You: We flash the module with your vehicle’s exact VIN, ensuring all factory options and parameters are correctly loaded.
- ✔ Latest GM Software: Your ECM will have the most recent GM updates, which often correct drivability issues and improve performance and efficiency over the original software.
- ✔ Direct Replacement: This module is a direct fit for original part numbers 12633055 and 12633238.
- ✔ Plug-and-Play Potential: In many cases, after installation, you may only need to perform a simple security relearn procedure (often called a Passlock or anti-theft relearn), which can be done without special tools. Instructions are widely available online.
Guaranteed Fitment for Your GM Vehicle
This ECM is compatible with an extensive list of GM models and engines. Please verify your vehicle is on this list. Note the specific engine and options for a perfect match.
Vehicle Compatibility List:
Chevrolet: Avalanche 1500 (2010-2013), Camaro (2010-2015), Caprice (2011-2017), Corvette (2010-2013), Express Vans (1500/2500/3500, 2010-2015), Silverado Pickups (1500/2500/3500, 2010-2013), SS Caprice (2014-2017), Suburban (1500/2500, 2010-2014), Tahoe (2010-2014)
GMC: Savana Vans (1500/2500/3500, 2010-2015), Sierra Pickups (1500/2500/3500, 2010-2013), Sierra Denali (2010-2013), Yukon & Yukon XL (1500/2500, 2010-2014)
Cadillac: Escalade, ESV, EXT (2010-2014)
IMPORTANT: After purchase, you must provide your 17-digit VIN to complete the programming process. Your order cannot be shipped without it.