Restore Your Cadillac’s Performance and Reliability
If you’re dealing with frustrating engine problems in your 2010-2011 Cadillac SRX, a failing Engine Control Module (ECM) is often the culprit. As a technician with over two decades of experience, I’ve seen firsthand how a faulty ECM can cause a cascade of issues, from a simple check engine light to a vehicle that won’t start at all. This isn’t just an inconvenience; it’s a matter of reliability. This replacement ECM is the definitive solution to get your luxury SUV running smoothly again.
The core of our service is providing a module that is ready to install right out of the box. We take your vehicle’s VIN and flash this ECM with the latest, most stable software directly from GM. This critical step ensures all factory settings, from fuel delivery to transmission shift points, are perfectly calibrated for your specific SRX. You get a reliable repair without the expensive trip to the dealership for programming.
Is Your Cadillac SRX Showing These Signs?
- ✔ Check Engine Light is on with no obvious cause.
- ✔ Engine cranks but refuses to start.
- ✔ Unexplained drops in fuel economy.
- ✔ Stalling, hesitation, or rough idling.
- ✔ Transmission shifting erratically or harshly.
- ✔ Communication error codes, such as U0100 (Lost Communication with ECM/PCM).
- ✔ Internal module fault codes like P0601, P0603, or P0606.
Case Study: A Tricky Diagnosis
I remember a 2011 SRX 3.0L that came into my bay with an intermittent no-start condition that was driving the owner crazy. It would be fine for days, then suddenly refuse to start. No codes were stored initially. After extensive testing of the fuel and ignition systems, we finally caught the ECM failing to power the fuel pump relay during one of its episodes. The internal driver had become heat-sensitive. Replacing it with a VIN-programmed module like this one solved the problem permanently. The customer was relieved to have a reliable vehicle back without paying dealership prices for diagnostics and programming.
A Straightforward Guide to Installation
Installing your new 2010-2011 SRX ECM is a manageable job for a confident DIYer. Follow these steps carefully for a successful replacement.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes for the systems to fully discharge.
- Locate the ECM: On the 2010-2011 SRX, the ECM is found in the left-hand (driver’s side) of the engine compartment. It’s a silver metal box with large electrical connectors.
- Disconnect the Harnesses: Carefully release the locking levers on the electrical connectors and pull them straight out from the module. Never force them. Inspect the connectors for any corrosion or damage.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the hardware, as you may need to reuse it.
- Install the New Module: Mount your new, pre-programmed ECM onto the bracket and secure it. Reconnect the electrical harnesses, ensuring the locking levers click firmly into place.
- Reconnect the Battery: Reattach the negative battery terminal.
- Perform Security Relearn: Your vehicle may require a security or anti-theft relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times before starting the engine. Consult your owner’s manual for the exact procedure for your vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for part number 12637106 and is also fully compatible with the following part numbers: 12616889, 12630908, 12642665, 12650256, and 12651993. It is guaranteed to fit the following vehicles:
- Cadillac SRX: 2010-2011 (3.0L Engine)
- Cadillac CTS: 2010-2012 (3.0L, 3.6L)
- Buick Allure / LaCrosse: 2010-2011 (2.4L, 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)
Note: This is not an exhaustive list. Please verify your part number or contact us with your VIN to confirm fitment.
Do I need to do any programming myself?
Do I need to do any programming myself?
No. We handle all the programming before we ship the module. Simply provide us with your vehicle’s 17-digit VIN during checkout, and we will flash the unit with the latest GM software specific to your vehicle. It arrives ready for installation.
What is a security relearn procedure?
Most GM vehicles have an anti-theft system that links the ECM to the ignition key. After installing a new ECM, you may need to perform a simple ‘relearn’ procedure so the vehicle recognizes the new module. It’s a simple key-on/key-off process that you can do yourself in about 30 minutes.
Is this a reliable fix for my 2010-2011 SRX ECM?
Absolutely. This ECM is a dependable replacement for a failed original unit. By ensuring it has the correct, updated software for your VIN, we eliminate software conflicts that can cause persistent issues, providing a long-term solution to your vehicle’s problems.
Where do I find my VIN?
Your Vehicle Identification Number (VIN) can be found on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.