Restore Peak Performance to Your Cadillac SRX
Is your 2010-2011 Cadillac SRX suffering from frustrating issues like a persistent Check Engine Light, rough idling, stalling, or a sudden drop in fuel efficiency? These are classic symptoms of a failing Engine Control Module (ECM), the critical computer that acts as your vehicle’s brain. When it falters, everything from ignition timing to fuel delivery is compromised, leaving you with an unreliable and inefficient vehicle. This isn’t just an annoyance; it’s a problem that affects your vehicle’s core performance and safety. As a technician with over two decades of experience, I’ve seen firsthand how a failing ECM can mimic a dozen other problems, leading to costly and incorrect repairs.
This replacement Engine Control Module is the definitive solution. It’s not just a part; it’s a complete fix that arrives at your door pre-programmed with the latest official GM software updates, specifically matched to your vehicle’s VIN. This crucial step eliminates the need for an expensive trip to the dealership for programming, saving you time and money. By providing us with your VIN during checkout, you ensure that this 2010-2011 SRX Engine Module will integrate seamlessly with your vehicle’s systems, restoring the precise control and reliability you expect from your Cadillac.
From the Diagnostic Bay
I remember a 2011 SRX with the 3.0L V6 that came into my shop with a maddeningly intermittent stalling problem. The owner had already replaced the fuel pump and a few sensors with no luck. The scan tool showed no hard codes, just a history of random communication errors (U-codes). After checking the wiring harness for the third time, we focused on the ECM. On the surface, it looked fine. But by monitoring live data during a test drive, we saw the fuel trim and timing values suddenly drop to zero right before it would stall. It was a classic case of internal ECM failure under load. Installing a properly programmed 2010-2011 SRX Engine Module like this one solved the problem instantly. The customer was relieved to finally have a reliable vehicle again after weeks of chasing ghosts.
Is Your Cadillac SRX Showing These Telltale Signs?
A failing ECM can manifest in various ways. If you’re experiencing any of the following, it’s a strong indicator that your engine’s computer needs attention. Look out for these common symptoms:
- ✔ Unexplained Check Engine Light illumination
- ✔ Vehicle refuses to start or has difficulty starting
- ✔ Stalling, stumbling, or hesitation during acceleration
- ✔ Noticeable decrease in fuel economy
- ✔ Poor engine performance and lack of power
- ✔ Transmission shifting issues or harsh shifts
- ✔ Diagnostic Trouble Codes (DTCs) such as P0601, P0606 (Internal Control Module Failure), or U0100 (Lost Communication with ECM)
A Straightforward Guide to Installation
Replacing the ECM on your SRX is a manageable job for a confident DIYer. Our pre-programmed module makes it even simpler. Follow these general steps to get your vehicle back in top shape.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the ECM: On the 2010-2011 SRX, the Engine Control Module is typically found in the engine compartment on the driver’s side (LH side).
- Disconnect the Connectors: Carefully unlatch and remove the electrical wiring harness connectors from the old module. Inspect them for any signs of corrosion or damage.
- Remove the Old Module: Unbolt the mounting hardware that secures the old ECM to its bracket and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure it with the original hardware.
- Reconnect Everything: Firmly plug the wiring harness connectors into the new module until they click into place. Reconnect the negative battery terminal.
- Perform Relearn Procedure: While the module is programmed, your vehicle may require a security or crankshaft position sensor relearn procedure. This can often be done without special tools (e.g., turning the key to ‘ON’ for 10-15 minutes). Consult a service manual for your specific vehicle’s procedure.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12642665 and is also compatible with several other GM part numbers, ensuring a perfect fit for a wide range of vehicles. Please verify your part number or contact us with your VIN to confirm compatibility. This part is guaranteed to fit the following applications:
SRX 2010-2011 (3.0L, LH engine compartment)
CTS 2010-2012 (3.0L, RH front engine compartment)
CTS 2012 (3.6L, RH front engine compartment)
Buick:
Allure 2010 (2.4L & 3.0L, LH engine compartment)
LaCrosse 2010 (3.0L, LH engine compartment)
LaCrosse 2010-2011 (2.4L, LH engine compartment)
Regal 2011 (LH engine compartment)
Chevrolet:
Camaro 2012 (3.6L)
Captiva Sport 2012 (LH engine compartment)
Equinox 2010-2011 (LH engine compartment)
Impala 2012 (Air cleaner bracket)
Orlando 2012-2013 (LH engine compartment)
GMC:
Terrain 2010-2011 (LH engine compartment)
Saab:
9-5 2010-2011 (2.0L, VIN R, opt LHU)
Note: This module interchanges with part numbers 12616889, 12630908, 12637106, 12650256, and 12651993.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN when you order, and the module will arrive with the latest GM software, ready for installation.
Is this a simple plug-and-play installation?
Yes, for the most part. The module is programmed to your VIN. However, some GM vehicles may require a simple, key-on security relearn or crankshaft variation relearn procedure after installation, which typically does not require special scan tools.
How do I find my original part number?
The part number is printed on a sticker on your original ECM. You can compare it to the numbers listed here (12642665, 12616889, etc.). If you can’t find it, just send us your VIN, and we can verify the correct part for you.
Will this fix my ‘Service StabiliTrak’ message?
In many cases, yes. The ECM communicates directly with the traction control (StabiliTrak) and ABS systems. A failing ECM can cause communication faults that trigger these warnings. Replacing a faulty ECM often resolves these related electronic issues.
What happens if I don’t provide a VIN?
Providing your VIN is essential. We cannot program and ship the module without it. The programming ensures the ECM works correctly with your specific vehicle’s engine, transmission, and options. An order without a VIN will be delayed until we receive it from you.