Get Your Workhorse Back on the Job
Is your Sierra, Silverado, or Express van suddenly running rough, stalling, or refusing to start? A failing Powertrain Control Module (PCM) can bring your entire operation to a halt, costing you time and money. This isn’t just an inconvenience; it’s a critical failure that compromises your vehicle’s reliability. We provide the definitive solution: a direct-fit replacement PCM, professionally programmed with the latest GM software specifically for your vehicle’s VIN. This is the no-hassle, reliable fix to restore your truck’s performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty engine computer can cause a cascade of frustrating issues. If you’re experiencing any of the following, a failing PCM is the likely culprit:
- Severe hesitation or stumbling under acceleration
- Inexplicable stalling or rough idling
- Complete no-start condition with power to all other systems
- Check Engine Light with communication error codes (e.g., U-codes)
- Poor fuel economy and shifting problems
This replacement unit is the solution. By ordering our Programmed 12581565 PCM, you are getting a component that is prepared to integrate seamlessly with your truck’s existing systems, effectively erasing these problems and restoring factory-level operation.
Features & Real-World Benefits
- โ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the newest GM software updates before it ships. This ensures 100% compatibility and a true plug-and-play installation, saving you a costly trip to the dealership.
- โ Direct OEM Replacement: Engineered to match the fit and function of the original part numbers, including 12581565, 12576106, and 89017733, guaranteeing a perfect installation in the factory location.
- โ Resolves Drivability Issues: By installing a properly functioning and updated computer, you directly address the root cause of erratic engine behavior, restoring smooth power delivery and dependable operation.
- โ Quality Inspected: Every module is meticulously inspected to ensure it meets strict performance standards, giving you a dependable part you can count on for the long haul.
- โ This unit is backed by our one-year replacement warranty. Your purchase is protected, giving you complete peace of mind.
From the Technician’s Bench: A customer brought in a 2003 Silverado 2500 with the 8.1L that had an intermittent no-start. He had already replaced the battery, crank sensor, and fuel pump. The problem was a failing PCM that would lose communication when it got hot. Swapping in a generic, non-programmed module from a salvage yard only created new problems with the anti-theft system. Installing a properly Programmed 12581565 PCM, flashed to his VIN, solved everything instantly. The truck fired up every time, and all the systems communicated correctly. Don’t chase ghostsโstart with the brain of the operation.
Frequently Asked Questions
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific truck or van.
Is this a difficult part to install?
For most of the listed vehicles (trucks, SUVs, vans), the PCM is located under the hood, often near the battery. Installation typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then reversing the process. It’s a straightforward job for a DIYer with basic tools.
Will I need to do anything after installation?
In many cases, a security relearn procedure may be required after installation. This is a simple process that typically involves cycling the key in the ignition and can be done without special tools. Instructions are widely available online for your specific model. On some vehicles, a Crankshaft Variation Relearn (CASE Relearn) may be needed with a scan tool to clear a specific trouble code, but the vehicle will run and drive without it.
How can I be sure this fits my vehicle?
Please check the extensive fitment list on this page. This Programmed 12581565 PCM is a direct replacement for all the service numbers listed. Providing your VIN ensures we program it for your exact make, model, and engine configuration.
What does the one-year replacement warranty cover?
The warranty covers the module against failure for a period of one year from the date of purchase. If the unit fails within this period, we will provide a replacement. This ensures your investment is protected against defects.