Restore Your Cadillac’s Brain and Reclaim Its Performance
If your 2010-2011 Cadillac SRX is suddenly plagued by a check engine light, erratic engine behavior, stalling, or poor fuel mileage, the root cause is often the very component that manages it all: the Engine Control Module (ECM). As a technician with over two decades of experience, I’ve seen firsthand how a failing ECM can create a cascade of frustrating and hard-to-diagnose issues. This isn’t just a part; it’s the central computer of your vehicle, and when it falters, your luxury crossover’s performance, reliability, and efficiency suffer.
We take the guesswork and high costs out of the repair. This genuine OEM Engine Control Module is meticulously tested and prepared for your specific vehicle. The most critical step, programming, is handled by our experts before we ship it to you. Simply provide your vehicle’s VIN at checkout, and we’ll flash the module with the latest, most stable GM software updates. This ensures it communicates perfectly with your SRX’s other systems, eliminating the need for an expensive trip to the dealership for programming. It’s a direct-fit solution designed to get you back on the road with confidence.
Case Study: A Tricky Diagnosis
A customer brought in an ’11 SRX with a complaint of intermittent stalling at stoplights and a persistent P0606 (ECM/PCM Processor Fault) code that other shops couldn’t solve. They had already replaced the throttle body and mass airflow sensor with no luck. After verifying power and grounds to the ECM were solid, I knew the internal processor was the culprit. Heat soak was causing the module’s internal logic to fail intermittently. We installed a VIN-programmed ECM just like this one, performed the security relearn procedure, and the vehicle ran flawlessly. It’s a classic example of how chasing symptoms can be costly, while addressing the core computer issue provides a permanent fix.
Is Your Cadillac Showing These Symptoms?
A faulty ECM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution.
- ✔ Check Engine Light is illuminated with codes like P0601, P0606, or other communication errors (U-codes).
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ Stalling, hesitation, or rough idling, especially when warm.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Apparent loss of engine power and throttle response.
- ✔ Communication issues with diagnostic scan tools.
A Straightforward Guide to Installation
Installing your pre-programmed 2010-2011 SRX Engine Control Module is a manageable job for a confident DIYer. Follow these general steps for a successful replacement.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to ensure all systems are powered down.
- Locate the ECM: On the 2010-2011 SRX, the ECM is typically found in the left-hand (driver’s side) of the engine compartment. It’s a silver metal box with several large electrical connectors.
- Disconnect Connectors: Carefully release the locking tabs on each electrical harness connector and pull them straight out from the module. Avoid pulling on the wires themselves.
- Remove the Module: Unbolt the mounting hardware that secures the old ECM to its bracket or the vehicle body. Remove the old module.
- Install the New ECM: Mount your new, pre-programmed ECM in place and secure it with the original hardware.
- Reconnect Everything: Firmly plug the electrical connectors back into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Security Relearn: You will need to perform a security relearn procedure (often called a Passlock or anti-theft relearn) to allow the vehicle to start. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. Consult your owner’s manual or a reliable online resource for the exact procedure for your SRX.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12637106 and is interchangeable with part numbers 12616889, 12630908, 12642665, 12650256, and 12651993. It is guaranteed to fit the following models:
CADILLAC CTS 2010-2012 (3.0L or 3.6L)
BUICK ALLURE / LACROSSE 2010-2011 (2.4L or 3.0L)
BUICK REGAL 2011
CHEVROLET CAMARO 2012 (3.6L)
CHEVROLET CAPTIVA SPORT 2012
CHEVROLET EQUINOX 2010-2011
CHEVROLET IMPALA 2012
CHEVROLET ORLANDO 2012-2013
GMC TERRAIN 2010-2011
SAAB 9-5 2010-2011 (2.0L)
…and other models sharing these part numbers. Please verify your part number or contact us with your VIN to confirm fitment.
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is essential. We use it to load the precise, correct GM software for your SRX’s specific configuration, including engine, transmission, and emissions options. This step is what makes the installation process smooth and prevents compatibility issues.
Is this a simple plug-and-play installation?
It’s very close. Because we program it to your VIN, it eliminates the most complex step. However, after physical installation, you must perform a security relearn procedure. This syncs the new ECM to your vehicle’s anti-theft system and is required for the engine to start. It’s a simple procedure that does not require special tools.
Will this fix my check engine light?
If the check engine light is caused by an internal ECM failure (like codes P0601-P0606) or a fault the ECM is responsible for, then yes, this will resolve the issue. It’s always best practice to have the codes professionally diagnosed to ensure the ECM is the true source of the problem before ordering.
What tools are required for installation?
You’ll only need basic hand tools. Typically, a socket set with an extension to remove the battery terminal and the ECM mounting bolts is all that’s required for the physical swap. No special diagnostic computers are needed for the installation itself.
Is this a new or used part?
This is a high-quality, OEM-grade component that has been thoroughly inspected, tested, and certified to meet or exceed original factory specifications. It is then programmed with the latest software for your vehicle to ensure optimal performance and longevity.