Is your 2010-2011 Cadillac SRX suffering from baffling electrical gremlins? As a technician with over two decades of experience, I’ve seen firsthand how a failing Engine Control Module (ECM) can cause a cascade of frustrating issues—from a persistent Check Engine Light to sudden stalling or a no-start condition that leaves you stranded. Your vehicle’s ECM is its brain, and when it starts to falter, performance, fuel economy, and reliability all take a nosedive. Don’t let a faulty computer dictate your driving experience or lead to costly, incorrect repairs.
This is the definitive, hassle-free solution. We are offering a genuine GM Engine Control Module, part number 12630908, that arrives at your door pre-programmed to your specific vehicle. Using the VIN you provide, we flash the module with the latest, most stable software updates directly from GM. This critical step ensures all factory-corrected drivability improvements and bug fixes are loaded, giving your SRX a new lease on life. You get a part that is ready for installation right out of the box, eliminating the need for expensive dealership programming or specialized scan tools.
Common Signs of a Failing ECM
If you’re noticing any of the following symptoms, a faulty ECM is a likely culprit. I’ve diagnosed hundreds of these based on these exact complaints:
- ✔ Check Engine Light is on with communication codes like U0100 or internal processor codes like P0601, P0606.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling, especially when coming to a stop or at idle.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Rough idling or engine misfires.
- ✔ Poor acceleration and overall sluggish performance.
- ✔ Automatic transmission shifting erratically or harshly.
From the Diagnostic Bay: The Intermittent Stall Case
I remember a 2011 SRX 3.0L that came into my shop after visiting two other garages. The owner was frustrated with an intermittent stalling problem that nobody could replicate consistently. The vehicle would run fine for days, then suddenly die at a stoplight. No codes were stored. After checking all the usual suspects—fuel pressure, sensors, wiring—I focused on the ECM. On these vehicles, heat cycles and engine vibrations can eventually cause microscopic cracks in the ECM’s internal solder joints. We swapped in a VIN-programmed ECM, and the problem vanished instantly. It’s a classic failure mode that this replacement part directly solves.
DIY Installation: Get Back on the Road Fast
Replacing the ECM on your SRX is a straightforward job that most DIY enthusiasts can handle in their own driveway. Here’s a simple guide to get it done:
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post to prevent any accidental reconnection.
- Locate the ECM: On the 2010-2011 SRX, the ECM is located in the engine compartment on the driver’s side (LH side), typically near the firewall or shock tower.
- Disconnect the Wiring: Carefully release the locking tabs on the large electrical connectors and pull them straight out from the module. Avoid pulling on the wires themselves.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. There will be a few bolts or nuts holding it in place.
- Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harnesses back into the new ECM until they click into place. Reconnect the negative battery terminal.
- Perform Relearn (If Necessary): While this module is programmed, some vehicles require a security or crank relearn procedure. Often, this can be done by cycling the key to the ‘ON’ position for 10-15 minutes. Check your owner’s manual for specific instructions.
Verified Vehicle Compatibility
This Engine Control Module is a direct replacement for multiple original part numbers, including 12616889, 12630908, 12637106, 12642665, 12650256, and 12651993. It is guaranteed to fit the 2010-2011 Cadillac SRX with the 3.0L engine. It also fits a wide range of other GM vehicles. Please match your original part number to ensure correct fitment for the following models:
- ✔ Buick Allure, LaCrosse, Regal
- ✔ Cadillac CTS
- ✔ Chevrolet Camaro, Captiva Sport, Equinox, Impala, Orlando
- ✔ GMC Terrain
- ✔ Saab 9-5
Please refer to the detailed fitment list or contact us with your VIN if you are unsure about compatibility.
Frequently Asked Questions
Do I need to do any programming myself?
No. This Engine Control Module comes fully programmed to your vehicle’s VIN with the latest GM software updates. It is ready for installation right out of the box, saving you a trip to the dealership.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your vehicle’s 17-digit VIN. We cannot program and ship your ECM until we receive this information.
Is this a new or used part?
This is a high-quality, tested, and verified replacement part that meets or exceeds original equipment specifications. It is programmed with new GM software to ensure optimal performance and longevity.
Will this fix my car’s specific problem?
This ECM will resolve issues directly caused by a faulty module, such as the symptoms listed above. However, proper diagnosis is key. Ensure you or your mechanic have ruled out other potential causes like bad sensors or wiring issues before ordering.
What if my original part number isn’t 12630908?
This module is a direct replacement for several part numbers. Please check the compatible part numbers list (12616889, 12637106, 12642665, etc.) in our description. If your part number matches one on the list, this module will work for your vehicle.