Is your 2010 or 2011 Camaro suffering from frustrating issues like stalling, erratic idling, or a persistent Check Engine Light? As a technician with over two decades of experience, I’ve seen firsthand how a failing Engine Control Module (ECM) can disrupt your vehicle’s entire performance. The ECM is the brain of your engine, and when it falters, you get symptoms that can be maddening to diagnose. This isn’t just a replacement part; it’s a reliable, long-term solution to restore your vehicle’s drivability and peace of mind.
We take the guesswork and hassle out of the repair. Each module is professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This critical step ensures all engine and transmission parameters are correct, resolving software bugs that may have existed in your old unit. For owners of the 2010-2011 Camaro ECM, this means you’re getting a module that’s ready to perform correctly right out of the box, saving you a costly trip to the dealership for programming.
From the Diagnostic Bay: The Intermittent Stall Case
I remember a 2011 Acadia (which uses this same ECM) that came into my shop. The owner was at their wit’s end. The vehicle would stall randomly at stoplights, but never consistently, and it threw a confusing mix of communication codes (U0100) and a generic P0606 (ECM Processor Fault). Two other shops had replaced sensors to no avail. After running a full diagnostic, I noticed the live data stream would freeze for a split second right before a stall. This pointed directly to the ECM’s internal processor failing under load. We installed a correctly programmed 2010-2011 Camaro ECM (compatible part), and the problem was solved instantly. It’s a classic example of how a failing module can mimic other issues.
Common Signs of a Failing 3.6L ECM
- ✔ Check Engine Light is on with codes like P0601, P0602, P0606, or U0100.
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ Rough or unstable engine idle.
- ✔ Vehicle stalls unexpectedly while driving or at a stop.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Loss of communication with other vehicle modules.
Your Straightforward Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the ECM: On the 2010-2011 Camaro, the ECM is typically located in the engine bay. On other compatible models like the Traverse or Acadia, it’s often found behind the fan shroud. Refer to a service manual for your specific vehicle’s location.
- ✔ Disconnect Connectors: Carefully release the locking tabs on the electrical connectors and pull them straight out from the module. Do not force them.
- ✔ Remove the Old Module: Unbolt the old ECM from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed ECM and securely re-attach the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect Battery: Re-attach the negative battery terminal.
- ✔ Security Relearn (If Applicable): While we handle the programming, some vehicles may require a simple key-cycle security relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes. We will provide specific instructions if needed.
Important Note for Camaro & LaCrosse Owners: To ensure a true plug-and-play installation, these models require us to transfer immobilizer data from your original ECM to the new one. After your purchase, we will contact you with simple instructions for sending your old module to us. This essential service prevents no-start issues and saves you from needing special tools or a dealership visit.
Verified Fitment for These GM Models
This ECM, part number 12636355, is a direct-fit replacement for the following vehicles equipped with the 3.6L V6 engine. It is also a compatible replacement for part numbers 19300015, 19300014, 12617230, and 12635019.
- 2010-2011 Buick LaCrosse (3.6L)
- 2010-2011 Chevrolet Traverse
- 2010-2011 Cadillac CTS (3.6L)
- 2010-2011 Chevrolet Camaro (3.6L)
- 2010 Saturn Outlook
- 2010 Buick Allure (3.6L)
- 2010-2011 Buick Enclave
- 2010-2011 GMC Acadia
- 2010-2011 Cadillac STS (3.6L)
Frequently Asked Questions
Do I need to do any programming myself?
No. We flash the module with the latest GM software using the VIN you provide, so it arrives ready for installation. For Camaro and LaCrosse models, we also handle the immobilizer data transfer to make it truly plug-and-play after we receive your old unit.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to access the exact software calibration file for your car’s specific options and configuration. This ensures perfect compatibility and performance, just like a module from the factory.
What is the process for Camaro and LaCrosse owners?
After you place your order, we will contact you with a prepaid shipping label and instructions to send your original ECM to us. We will then read the unique immobilizer security data from it and write it to your new module. This makes the new part fully functional without any further security procedures.
Will this fix my car’s specific problem?
This module will correct issues directly caused by a failing ECM, such as internal processor faults (P0606), communication errors, and erratic engine behavior. While it solves many common problems, you should always ensure your vehicle has been properly diagnosed.
Is this a used part?
This is a high-quality, tested, and verified original equipment part that has been programmed to your vehicle’s VIN. We stand by the reliability and function of every module we ship.