2018 Escalade ESV ECM Engine Computer 12704475 Programmed to Your VIN

Is your 2018 Cadillac Escalade ESV experiencing perplexing issues like a persistent check engine light, stalling, rough idling, or a complete no-start condition? These are common indicators of a failing Engine Control Module (ECM), the central computer that manages your vehicle’s engine performance, fuel economy, and emissions. Don’t let a faulty computer keep your luxury SUV off the road. This is a direct-fit, professionally programmed ECM, part number 12704475, designed to restore your vehicle’s factory performance and reliability.

We take the guesswork and high dealership costs out of the equation. Unlike a generic module from a parts store, this unit is specifically programmed to your vehicle’s unique Vehicle Identification Number (VIN) before it ships. This ensures seamless integration with your Escalade’s existing systems. We load the latest GM-certified software and calibrations, so you receive a module that is ready for installation right out of the box. Simply provide us with your VIN during checkout, and our technicians will handle the complex programming process for you.

Common Symptoms of a Failing 2018 Escalade ESV ECM

If you’re unsure whether the ECM is the root of your problem, review this list of common failure symptoms. A malfunctioning module can manifest in various ways, often mimicking other component failures. Proper diagnosis is key, but if your vehicle is showing several of these signs, the ECM is a likely culprit.

• ✔ Persistent Check Engine Light (CEL) with various trouble codes, especially those related to communication or processor faults.
• ✔ Engine stalling or shutting off unexpectedly while driving.
• ✔ Difficulty starting the engine or a complete no-start condition.
• ✔ Noticeable decrease in fuel efficiency.
• ✔ Poor engine performance, including hesitation, misfires, or lack of power.
• ✔ Erratic or harsh automatic transmission shifting.
• ✔ Communication issues with diagnostic scan tools.
• ✔ Other warning lights on the instrument cluster may illuminate without a clear cause.

The Installation and Relearn Process

Replacing the 2018 Escalade ESV ECM is a straightforward mechanical process, but it requires a critical final step. Once the new module is installed, the vehicle will not start until a ‘Vehicle Theft Deterrent Relearn’ procedure is completed. This is a security measure that syncs the new ECM with your vehicle’s immobilizer system and keys.

IMPORTANT: This security relearn procedure must be performed using a professional-grade diagnostic tool with access to GM’s programming software, such as TIS2Web or Techline Connect. This is not a procedure that can be done with a basic code reader. It is the responsibility of the buyer or their mechanic to perform this final step. Additionally, other vehicle-specific setups may be required, such as a crankshaft variation relearn or injector flow rate programming, to ensure optimal performance.

Guaranteed Compatibility

This ECM is a direct replacement for a wide range of GM trucks and SUVs. It is fully compatible with and replaces the following part numbers: 12704475, 12692069, 12680656, 12686383, and 12688528. It fits models such as the Cadillac Escalade, Chevrolet Silverado 1500, Tahoe, Suburban, Corvette, Express Van, GMC Sierra 1500, Yukon, and Savana Van. By providing your VIN, we guarantee you will receive a module with the correct hardware and software for your specific vehicle configuration.