Restore Your Cadillac’s Peak Performance and Reliability
There’s nothing more frustrating than when your sophisticated Cadillac DTS begins to show signs of engine trouble. Intermittent stalling, a persistent check engine light, or a complete failure to start can disrupt your life and undermine the confidence you have in your vehicle. These are often symptoms of a failing Engine Control Module (ECM), the critical computer that manages your engine’s performance. Our pre-programmed ECM is the definitive, hassle-free solution to restore the smooth, powerful, and reliable driving experience you expect.
Common Symptoms & Your Solution
If your Cadillac is experiencing any of the following issues, a failing engine computer is a likely cause. This module is the direct solution for these problems, arriving at your door ready for installation.
- Check Engine Light (CEL) is illuminated with codes like P0601, P0606, or U0100
- Engine cranks but fails to start
- Stalling, stumbling, or hesitation during acceleration
- Noticeable decrease in fuel economy
- Erratic transmission shifting or communication errors
- Communication issues with diagnostic scan tools
By installing our Programmed 2009-2011 Cadillac DTS ECM, you bypass the expensive and time-consuming process of towing your vehicle to a dealership for programming. We handle the complex part, so you can get back on the road quickly and confidently.
Features & Benefits
- ✔ VIN-Specific Programming: We flash the module with the latest GM-certified software using your vehicle’s unique VIN. This ensures perfect compatibility and function right out of the box.
- ✔ Plug-and-Drive Installation: No need for a trip to the dealer or a specialized technician for programming. This module is ready to install upon arrival, saving you time and hundreds of dollars in fees.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for a wide range of service numbers, including 12636659, 12639300, 12628993, and more, ensuring a perfect fit for your DTS and many other GM models.
- ✔ Restored Engine Efficiency: With updated software and proper function, your engine’s fuel delivery and ignition timing are optimized, often leading to improved fuel mileage and smoother power delivery.
- ✔ Complete Peace of Mind: This unit is backed by our one-year replacement warranty. Drive with the assurance that your vehicle’s core computer is dependable.
Expert Insight: The Importance of Correct Programming
As a technician with over two decades of experience, I’ve seen countless issues arise from improperly programmed or generic control modules. A vehicle’s ECM is not a one-size-fits-all part. It communicates with dozens of other modules, controlling everything from the fuel injectors to the cooling fans. Using a generic junkyard module without correct, VIN-specific programming can lead to persistent error codes, immobilizer lock-outs, and even damage to other components. Our process ensures the Programmed 2009-2011 Cadillac DTS ECM you receive is a perfect digital match for your car’s specific configuration, just as it was when it left the factory.
Frequently Asked Questions
Do I need to do any additional programming or flashing?
No. This module arrives fully programmed to your vehicle’s VIN and is ready for installation. In most cases, you will only need to perform a simple security relearn procedure, which can be done without any special tools and takes about 30 minutes. We include instructions for this process.
Where do I provide my vehicle’s VIN?
Please enter your 17-digit VIN in the designated field on the checkout page. You can also send it to us via email after placing your order. We cannot ship your part until we receive the VIN, as the programming is essential.
Is this a brand new part?
This is a genuine, quality-inspected GM part that has been meticulously tested and verified to meet or exceed original factory specifications. It is programmed with the latest software to ensure optimal performance and longevity.
Will this fit vehicles other than the Cadillac DTS?
Yes, this ECM is compatible with a wide range of GM vehicles from 2009-2012, including the Chevy Colorado, GMC Canyon, Hummer H3, Buick Lucerne, and more. Please check the detailed fitment list on this page to confirm compatibility with your specific model and engine.
How do I know for sure my ECM is the problem?
While the symptoms listed are strong indicators of a faulty ECM, we always recommend a thorough diagnosis by a qualified mechanic. Common diagnostic trouble codes (DTCs) like P0601 (Internal Control Module Memory Check Sum Error) are a definitive sign. This Programmed 2009-2011 Cadillac DTS ECM will resolve all internal computer faults.