Restore Peak Performance to Your GM Vehicle
Is your 2010-2011 Chevrolet Traverse, Acadia, or other GM 3.6L vehicle suddenly running rough, stalling, or refusing to start? Are you staring at a persistent Check Engine Light with codes that just won’t go away? You’re likely dealing with a failing Engine Control Module (ECM), the computer that serves as your vehicle’s brain. In my 20+ years as a technician, I’ve seen firsthand how a faulty ECM can cause a cascade of frustrating and hard-to-diagnose issues. This isn’t just a part; it’s the central command for your engine’s performance, fuel economy, and emissions.
This replacement ECM is your direct, reliable solution. We take the guesswork and dealer-level expense out of the equation. Before we ship it, we program the module with the very latest GM-certified software, tailored specifically to your vehicle using its unique VIN. This ensures that when it arrives, it’s ready for a straightforward installation, restoring the precise engine management your vehicle had when it left the factory.
Case Study: A Tricky Diagnosis
A customer brought in an ’11 Enclave with intermittent stalling and a P0606 code (ECM/PCM Processor Fault). They had already replaced the throttle body and multiple sensors with no luck. The symptoms pointed to a communication breakdown. After verifying the wiring harness was intact, we swapped in a known-good ECM. The problem vanished instantly. The original module had an internal processor failure that only occurred under specific thermal conditions, making it a nightmare to diagnose without experience. This highlights why replacing a faulty 2010-2011 Traverse ECM is often the final, correct fix after other parts fail to solve the problem.
Common Signs of a Failing ECM
- ✔ Check Engine Light is on with internal processor codes like P0601, P0606, or U0100.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drops in fuel efficiency.
- ✔ Rough idling, engine stumbling, or stalling.
- ✔ The vehicle enters a reduced power or “limp” mode.
- ✔ Automatic transmission shifts erratically or harshly.
- ✔ Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to power down completely.
- ✔ Locate the ECM: On most Traverse, Acadia, and Enclave models, the ECM is located behind the cooling fan shroud. On sedans like the LaCrosse or CTS, it’s typically in the engine compartment on the driver’s or passenger’s side. Refer to your owner’s manual for the exact location.
- ✔ Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and pull them straight out from the old module. Avoid pulling on the wires themselves.
- ✔ Remove the Old Module: Unbolt the old ECM from its mounting bracket. There are typically a few bolts holding it in place.
- ✔ Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the bolts. Reconnect the electrical connectors, ensuring they click firmly into place.
- ✔ Reconnect Battery: Reattach the negative battery terminal. The vehicle is now ready to start. No further programming is required for most models.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the following vehicles equipped with the 3.6L V6 engine. It is compatible with part numbers 19300015, 19300014, 12617230, 12636355, and 12635019.
- Buick Allure: 2010
- Buick Enclave: 2010-2011
- Buick LaCrosse: 2010-2011 (Requires immobilizer service – see below)
- Cadillac CTS: 2010-2011
- Cadillac STS: 2010-2011
- Chevrolet Camaro: 2010-2011 (Requires immobilizer service – see below)
- Chevrolet Traverse: 2010-2011
- GMC Acadia: 2010-2011
- Saturn Outlook: 2010
Important Note for Camaro & LaCrosse Owners: To ensure a true plug-and-play installation, these models require us to transfer the immobilizer (anti-theft) data from your original ECM. After your purchase, we will contact you with instructions for sending your old module to us for this service. This step is essential for the vehicle to start and run with the new module.
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming after I install this?
No. We program the module to your vehicle’s VIN before shipping. For most models, it is a direct plug-and-play installation. The only exception is for Camaro and LaCrosse models, which require an additional immobilizer service that we will coordinate with you.
What information do you need from me?
After you place your order, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is critical for us to load the correct GM software for your specific vehicle.
Is this a reliable fix for a 2010-2011 Traverse ECM?
Absolutely. A failing ECM is a common issue in these vehicles, causing a wide range of electrical and performance problems. This replacement module, programmed with the latest software, is the definitive solution for these failures.
What if my original part number is different?
This module is a direct replacement for several part numbers, including 19300015, 12617230, 12636355, and 12635019. As long as your vehicle is on the compatibility list, this part will work correctly.
Will this fix my car’s poor fuel mileage?
If the poor mileage is caused by a faulty ECM not correctly managing the air/fuel mixture or ignition timing, then yes, this will resolve the issue. A healthy ECM is essential for optimal fuel economy.