Is Your LaCrosse or GM 3.6L Vehicle Acting Up?
If you’re dealing with a 2010-2011 Buick LaCrosse, Chevy Camaro, or another GM vehicle with the 3.6L engine, you might be experiencing some frustrating and difficult-to-diagnose problems. Does any of this sound familiar? Your engine cranks but won’t start. It runs rough, misfires, or stalls unexpectedly. The check engine light is on with a host of communication codes (U-codes) that just won’t clear, or maybe you have specific codes pointing to injector driver circuits or sensor reference voltage issues. These aren’t just minor glitches; they’re signs that the very brain of your engine—the Engine Control Module (ECM)—may be failing.
As the central command center, the ECM is responsible for everything from fuel mixture and ignition timing to transmission shift points and emissions control. When it starts to fail, the symptoms can be erratic and often mimic other problems, leading to expensive and unnecessary parts replacement. I’ve seen countless hours and dollars wasted on new coils, injectors, and sensors when the root cause was a faulty ECM all along.
“A customer’s 2011 LaCrosse came in last week with these exact symptoms. It had a persistent misfire on cylinder 3 that no new spark plug or ignition coil could fix. The owner had already replaced the injector. After scoping the injector pulse width signal directly at the ECM connector, we found the driver circuit inside the module was failing intermittently under heat. It was a classic internal ECM failure that standard diagnostic code readers couldn’t pinpoint precisely. Swapping in a correctly programmed module solved the issue instantly.”
The Right Solution: A Properly Programmed ECM
Simply swapping a used ECM from another vehicle will not work. Modern vehicles use sophisticated anti-theft systems (immobilizers) and require the ECM to be programmed with your vehicle’s specific Vehicle Identification Number (VIN) and software calibration. This ensures it can communicate correctly with all the other modules in your car. Our service eliminates the guesswork and the expensive trip to the dealership.
This is a genuine GM Engine Control Module that we program specifically for your vehicle before it ships. You provide us with your VIN, and we flash the module with the latest, most stable software updates from General Motors. This process ensures your engine operates at peak efficiency and reliability.
Key Benefits of This Programmed ECM:
- ✔ Fixes Common Failure Points: A direct solution for no-start conditions, random stalling, rough idle, communication error codes, and false sensor readings caused by a faulty ECM.
- ✔ VIN Programmed for Your Vehicle: We load the correct GM software and your car’s VIN onto the module, ensuring it’s ready for your specific application.
- ✔ Plug & Play for LaCrosse & Camaro: For these specific models, we have a unique process. You’ll send us your original ECM, and we will transfer the critical immobilizer data to the replacement unit. This makes the installation truly plug-and-play, with no need for a security relearn procedure. We will contact you with instructions after your purchase.
- ✔ Save Time and Money: Avoid the high costs and scheduling hassles of a dealership service department. This is a straightforward fix you can often perform yourself.
- ✔ Broad Compatibility: This module is a direct replacement for several part numbers, ensuring a perfect match.
Guaranteed Fitment
This ECM, part number 12635019, is compatible with a wide range of GM vehicles equipped with the 3.6L engine. Please verify your vehicle is on the list below. It is a direct replacement for the following part numbers: 19300015, 19300014, 12617230, 12636355, 12635019.
- ✔ Buick Allure: 2010 (3.6L)
- ✔ Buick Enclave: 2010-2011
- ✔ Buick LaCrosse: 2010-2011 (3.6L)
- ✔ Cadillac CTS: 2010-2011 (3.6L)
- ✔ Cadillac STS: 2010-2011 (3.6L)
- ✔ Chevrolet Camaro: 2010-2011 (3.6L)
- ✔ Chevrolet Traverse: 2010-2011
- ✔ GMC Acadia: 2010-2011
- ✔ Saturn Outlook: 2010
After purchase, please have your VIN ready to send to us. For LaCrosse and Camaro owners, we will reach out with simple, prepaid instructions for sending your original module to us for the immobilizer data transfer. Get your vehicle running right again with a reliable, professionally programmed ECM.