Is Your GM 3.6L Vehicle Running Erratically?
If you’re behind the wheel of a 2010-2011 Cadillac STS, CTS, or another GM vehicle with the 3.6L V6, you expect smooth, reliable power. But when the Engine Control Module (ECM) starts to fail, that experience can quickly turn into a frustrating diagnostic puzzle. You might be dealing with a sudden check engine light, unexplained stalling at intersections, poor fuel economy, or even a complete no-start condition that leaves you stranded.
As the brain of your engine, the ECM is responsible for thousands of calculations per second. It controls everything from fuel injector pulse width and ignition timing to transmission shift points and emissions equipment. Over years of service, the constant exposure to engine bay heat and vibration can take its toll on the delicate internal circuitry, leading to failures that are often intermittent and difficult to pin down.
A Technician’s Real-World Diagnostic Story
“A customer’s 2011 Buick LaCrosse came into the shop last month with these exact symptoms. It had an intermittent stalling problem that two other shops couldn’t solve. The codes were all over the place—U-codes for lost communication, random misfires, and throttle body faults. After confirming the wiring harness and grounds were solid, we connected a lab scope to the ECM’s 5-volt reference circuit. We saw the voltage intermittently dropping out, causing chaos across multiple sensor readings. That’s a textbook internal ECM failure. We replaced it with a properly programmed unit, and the car has been running perfectly ever since.”
The Right Solution: A VIN-Programmed ECM
Simply swapping an ECM from another vehicle won’t work. Modern vehicles use sophisticated software and anti-theft systems (immobilizers) that are tied directly to your vehicle’s unique Vehicle Identification Number (VIN). This module is the definitive solution, taking all the guesswork and dealership hassle out of the equation.
We handle the critical programming for you before we ship. By providing us with your VIN, you receive a module that is loaded with the latest, most stable software updates from General Motors, specifically calibrated for your vehicle’s original factory options. This ensures seamless communication between all onboard systems and restores the performance and reliability you expect.
Key Benefits of This Programmed Module:
- ✔ Solves Common Drivability Issues: Directly addresses problems like stalling, rough idle, no-start conditions, and erratic engine behavior caused by a faulty ECM.
- ✔ VIN-Specific Programming Included: We flash the module with your vehicle’s exact VIN and the newest GM software, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Restores Communication: Fixes diagnostic trouble codes (DTCs) related to lost communication with the ECM (U-codes) and other modules.
- ✔ Simple Installation Process: Once you receive the programmed module, the physical installation is straightforward for a DIYer or any professional technician.
Important Information for Camaro & LaCrosse Owners:
Due to the specific immobilizer system used in the 2010-2011 Camaro and LaCrosse, a simple VIN flash is not enough to make the module plug-and-play. For these two models, we require you to send us your original ECM. We will professionally extract the unique immobilizer data and transfer it to your new module. This ensures your key fobs will work and the vehicle will start without any additional security relearn procedures. We will contact you with shipping instructions after your purchase.
Guaranteed Compatibility
This module is a direct replacement for part numbers 19300015, 19300014, 12617230, 12636355, and 12635019. It is guaranteed to fit and function correctly on the following vehicles equipped with the 3.6L engine:
- ✔ 2010-2011 Cadillac STS (RH engine)
- ✔ 2010-2011 Cadillac CTS (RH front engine compartment)
- ✔ 2010-2011 Chevrolet Camaro (3.6L)
- ✔ 2010-2011 Chevrolet Traverse (behind fan shroud)
- ✔ 2010-2011 Buick LaCrosse (LH engine compartment)
- ✔ 2010 Buick Allure (LH engine compartment)
- ✔ 2010-2011 GMC Acadia (behind fan shroud)
- ✔ 2010-2011 Buick Enclave (behind fan shroud)
- ✔ 2010 Saturn Outlook (behind fan shroud)
Don’t let a failing ECM keep your vehicle off the road. Order today and receive a professionally programmed module ready to restore your car’s proper function.