Restore Peak Performance to Your Cadillac SRX
Is your 2010-2011 Cadillac SRX suffering from frustrating and unpredictable issues like stalling, rough idling, a persistent check engine light, or a complete no-start condition? These are classic signs of a failing Engine Control Module (ECM), the electronic brain of your vehicle. A faulty ECM can cripple your vehicle’s performance, fuel economy, and reliability. This direct-fit replacement 2010-2011 SRX Engine Control Module is the definitive solution to get your luxury crossover running like new again, without the exorbitant costs and scheduling headaches of a dealership visit.
The most significant advantage of this module is our professional programming service. Before we ship your part, we flash it with the latest, most stable GM-certified software specifically for your vehicle. All we need is your Vehicle Identification Number (VIN) at checkout. This means the module arrives at your door ready for installation, eliminating the need for expensive dealer-only programming tools. It’s the most efficient and cost-effective way to solve complex electronic issues and restore your vehicle’s factory performance.
Case Study: A Tricky Diagnosis
A few months back, a 2011 SRX with the 3.0L V6 was towed to my shop. The owner was frustrated; the vehicle would randomly stall at stoplights and occasionally refuse to start, but there were no consistent warning lights. Other shops had replaced the battery and checked the fuel pump, but the problem persisted. My initial scan pulled intermittent communication codes (U0100) and a history code for an internal processor fault (P0606). In my 20+ years of experience, intermittent communication loss combined with a processor fault almost always points to the ECM itself. The internal circuits begin to fail under heat and vibration, causing these ghost-like problems. We installed one of our VIN-programmed modules, performed the security relearn, and the SRX has been running flawlessly ever since. This part saved the customer from needlessly replacing more components.
Is Your Cadillac SRX Exhibiting These Symptoms?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Check Engine Light is on with codes like P0601, P0602, P0606, or U0100.
- ✔ Engine stalls, stumbles, or misfires intermittently.
- ✔ Vehicle cranks but refuses to start.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Poor or erratic automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
A Straightforward Guide to Installation
Installing your new 2010-2011 SRX Engine Control Module is a manageable job for a confident DIYer. Follow these steps carefully for a successful replacement.
- 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 Connectors: Carefully release the locking tabs on the electrical wiring harnesses and disconnect them from the old ECM. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the mounting hardware that secures the ECM to its bracket. Remove the old module from the vehicle.
- Install the New Module: Mount your new, pre-programmed ECM in place and secure it with the original hardware. Reconnect the electrical harnesses, ensuring they click securely into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Security Relearn: This is a critical step. You must perform the GM Security Relearn Procedure (often called the “Passlock Relearn” or “Key Relearn”) to sync the new ECM with your vehicle’s anti-theft system. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then ‘OFF’, and repeating this cycle three times. Your vehicle will not start until this is completed.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12650256 and is interchangeable with part numbers 12616889, 12630908, 12637106, 12642665, and 12651993. It is guaranteed to fit the following models and configurations:
- 2010-2011 Cadillac SRX (Electronic Control Module; LH engine compartment, 3.0L)
- 2010-2012 Cadillac CTS (Electronic Control Module; RH front engine compartment, 3.0L or 3.6L)
- 2010-2011 Buick LaCrosse (Electronic Control Module; LH engine compartment, 2.4L or 3.0L)
- 2010 Buick Allure (Electronic Control Module; LH engine compartment, 2.4L or 3.0L)
- 2012 Chevrolet Impala (Electronic Control Module; air cleaner bracket)
- 2010-2011 Chevrolet Equinox (Electronic Control Module; LH engine compartment)
- 2010-2011 GMC Terrain (Electronic Control Module; LH engine compartment)
- 2012 Chevrolet Camaro (Electronic Control Module; 3.6L)
- 2012 Chevrolet Captiva Sport (Electronic Control Module; LH engine compartment)
- 2012-2013 Chevrolet Orlando (Electronic Control Module; LH engine compartment)
- 2011 Buick Regal (Electronic Control Module; LH engine compartment)
- 2010-2011 Saab 9-5 (Electronic Control Module; 2.0L)
Frequently Asked Questions
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows our technicians to program the Engine Control Module with the exact software and calibrations specified by GM for your SRX’s specific options. This ensures perfect compatibility and performance right out of the box.
Is the Security Relearn procedure difficult?
No, it’s a simple procedure that requires no special tools. While the exact steps can vary slightly, the 3-cycle key relearn (10-15 minutes ON, 1 minute OFF, repeated 3 times) works for most GM vehicles of this era. Your vehicle’s manual may also have instructions.
Will this fix my check engine light?
If the check engine light is caused by an internal ECM failure (like codes P0601-P0606), then yes, this part will resolve the issue. However, you should always ensure other potential causes (sensors, wiring) have been properly diagnosed first.
Is this a new or used part?
This is a high-quality, fully tested, and inspected used OEM part. Each module undergoes rigorous testing to ensure it meets or exceeds original factory performance standards before being programmed and shipped.
What if I have another part number?
This module, 12650256, directly replaces several other part numbers including 12616889, 12630908, 12637106, 12642665, and 12651993. If your original module has one of these numbers, this part is a guaranteed compatible replacement.