2004 Cadillac CTS Powertrain Control Module PCM 12570558

Restore Peak Performance to Your Cadillac CTS

Is your 2004 Cadillac CTS suffering from perplexing issues like a persistent Check Engine Light, rough idling, poor fuel economy, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM). The PCM is the electronic brain of your vehicle, meticulously managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it falters, the entire driving experience is compromised. This replacement Powertrain Control Module, corresponding to part number 12570558 and multiple service numbers including 12581565, is the definitive solution to get your vehicle running like new again.

We take the guesswork and hassle out of the replacement process. Unlike a generic module from a parts store, this unit is professionally programmed specifically for your vehicle. After your purchase, simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians will then flash the module with the latest, most stable software updates directly from General Motors. This VIN-specific programming ensures that the PCM communicates flawlessly with all other modules in your CTS, recognizing its specific engine, transmission, and factory options for a seamless, plug-and-play installation.

Is Your Vehicle Showing Signs of a Faulty PCM?

A failing PCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, your engine’s computer may be the culprit:

• ✔ Persistent Check Engine Light (CEL) with various, often unrelated, trouble codes.
• ✔ Engine stalling, sputtering, or misfiring for no apparent reason.
• ✔ Noticeable decrease in fuel efficiency.
• ✔ Harsh or erratic automatic transmission shifting.
• ✔ The vehicle cranks but refuses to start (no-start condition).
• ✔ Failure to pass state emissions testing.
• ✔ Communication errors with diagnostic scan tools.

The Advantage of a Pre-Programmed 2004 CTS Powertrain Control Module

Choosing our pre-programmed module saves you a trip to the dealership and the associated high costs of programming and labor. We handle the complex part, delivering a component that is ready for installation right out of the box. This module is not just a replacement; it’s a restoration of your vehicle’s original operating parameters, updated with the latest software improvements from GM to address known bugs and enhance performance and reliability. This service is critical for the complex electronics in a vehicle like the 2004 Cadillac CTS. A generic, unprogrammed module simply will not work.

This module is a direct-fit replacement for a wide range of GM vehicles from the era, including the Corvette, various GMC/Chevy trucks and vans like the Sierra, Silverado, Express, and Savana, as well as SUVs like the Yukon and Suburban. Please verify compatibility by matching your original part number to the service numbers listed: 12581565, 12570557, 12570558, 12576106, 12576869, 12578127, 88864822, and 89017733.

Installation Note

While this module is programmed for your vehicle, most GM vehicles of this generation require a security relearn procedure after installation. This procedure pairs the new PCM to your vehicle’s anti-theft system and can typically be performed by the owner in about 30 minutes with no special tools required. We can provide instructions for this simple process. In some cases, a Crankshaft Variation (CASE) relearn may be needed, which requires a capable scan tool.