Restore Peak Performance to Your GM Vehicle
Is your 2010-2011 GMC Acadia or other compatible GM vehicle suffering from frustrating issues like a persistent check engine light, erratic shifting, stalling, or a no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer of your vehicle. In my 20+ years of experience, I’ve seen how a faulty ECM can turn a reliable vehicle into a source of constant headaches. This isn’t just an inconvenience; it affects your vehicle’s safety, fuel economy, and emissions compliance.
We offer a dependable and straightforward solution. This is a high-quality replacement ECM, part number 19300015, that arrives at your door pre-programmed with the latest official GM software. We use your vehicle’s unique Vehicle Identification Number (VIN) to ensure the module is a perfect match, eliminating the need for expensive dealership programming. This process restores the precise factory instructions your engine needs to run smoothly and efficiently.
Common Signs of a Failing ECM
If you’re experiencing any of the following, a failing computer could be the culprit. I’ve diagnosed hundreds of these, and the symptoms are often consistent:
- ✔ Check Engine Light is on with communication codes (like U0100) or internal processor fault codes (P0601, P0606).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ The transmission shifts harshly or at the wrong times.
- ✔ Intermittent stalling or rough idling, especially after warming up.
- ✔ Failure to pass an emissions test.
Case Study: A Tricky Diagnosis
A few months back, a 2011 Buick Enclave (which uses this exact same ECM as the Acadia) came into my shop. The owner was frustrated with an intermittent stalling issue that three other shops couldn’t solve. It would run fine for days, then suddenly die at a stoplight. There were no hard codes, just a history of lost communication faults. After ruling out fuel and spark delivery, I focused on the ECM. By monitoring live data, I noticed the module’s internal temperature readings would spike just before it would shut down—a classic sign of an internal short. We installed a VIN-programmed ECM, and the problem was solved permanently. This is why a quality, correctly programmed module is critical.
A Straightforward Guide to Installation
For the DIY mechanic or professional technician, installing this 2010-2011 Acadia ECM is a manageable job. On the Acadia, Traverse, Enclave, and Outlook, the module is typically located behind the fan shroud.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the ECM: On most of the compatible SUVs, you will find the ECM mounted to the radiator fan shroud assembly. On sedans like the LaCrosse or CTS, it may be in the engine compartment on the driver’s or passenger’s side.
- Disconnect Connectors: Carefully release the locking tabs on the electrical wiring harnesses and pull them straight out from the module. Do not force them.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware as you may need to reuse it.
- Install the New ECM: Mount your new, pre-programmed ECM in place and securely tighten the bolts.
- Reconnect Everything: Plug the wiring harnesses back into the new module until they click, ensuring a secure connection. Reconnect the negative battery terminal.
- Final Step: Some vehicles may require a security relearn procedure, which can often be done without special tools. Turn the key to the ‘ON’ position for 10-15 minutes, then off, and repeat two more times before starting the engine.
Important Note for Camaro & LaCrosse Owners: Due to the specific immobilizer systems in the 2010-2011 Camaro and LaCrosse, making this module truly plug-and-play requires us to transfer security data from your original ECM. After your purchase, we will contact you with simple instructions for sending your old module to us for this data service.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19300015, 19300014, 12617230, 12636355, and 12635019. It is guaranteed to fit the following vehicles equipped with the 3.6L engine:
- ✔ 2010-2011 Buick LaCrosse
- ✔ 2010 Buick Allure
- ✔ 2010-2011 Buick Enclave
- ✔ 2010-2011 Cadillac CTS
- ✔ 2010-2011 Cadillac STS
- ✔ 2010-2011 Chevrolet Traverse
- ✔ 2010-2011 Chevrolet Camaro (3.6L V6 only)
- ✔ 2010-2011 GMC Acadia
- ✔ 2010 Saturn Outlook
Do I need to do any programming myself?
Do I need to do any programming myself?
No. We handle all the programming for you before we ship the part. We flash the module with the latest GM software using the VIN you provide, so it’s ready for installation right out of the box.
How do I provide my VIN?
After you complete your purchase, you can add your VIN to the order notes or send it to us through the messaging system. We cannot ship your part until we receive the VIN.
What if I have a Camaro or a LaCrosse?
For these two models, we require your old ECM to transfer critical immobilizer (anti-theft) data to the new one. This ensures the vehicle will start without needing a dealer visit. We will contact you with shipping instructions for your old part after you place your order.
Is this compatible with other part numbers?
Yes, this ECM is a direct, interchangeable replacement for several part numbers, including 19300014, 12617230, 12636355, and 12635019. If your module has one of these numbers, this part will work for you.