Is your truck or van suffering from frustrating issues like stalling, erratic shifting, or a persistent check engine light? A failing Powertrain Control Module (PCM) is often the culprit, leaving your reliable workhorse sidelined. This is the definitive solution: a replacement PCM, professionally programmed with the latest GM software specifically for your vehicle’s VIN. Forget expensive trips to the dealership or the gamble of a used, unprogrammed unit. This module is designed to restore your vehicle’s original performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A faulty PCM can cause a wide range of problems that are often misdiagnosed. If you’re experiencing any of the following, this module is the reliable fix you need:
- Check Engine Light (CEL) with various communication or sensor codes
- Engine stalling, stumbling, or rough idling
- Harsh or unpredictable transmission shifting
- Complete no-start condition
- Poor fuel economy and loss of power
- False error codes for perfectly good sensors
Installing our VIN-programmed 2003 GMC Yukon XL 2500 PCM 12576106 directly addresses these issues at their source, restoring the critical communication between your engine, transmission, and other systems.
Features & Benefits
- ✔ VIN-Specific Programming: Arrives flashed with the latest GM updates for your exact vehicle. No extra programming needed.
- ✔ Plug & Play Installation: Simply disconnect the old module and connect this one. In most cases, it’s a straightforward installation that gets you running quickly.
- ✔ Restored Performance: Corrects engine and transmission issues, restoring the smooth operation and efficiency you depend on.
- ✔ Cost-Effective Solution: Avoids the high costs and scheduling hassles of a dealership service department.
- ✔ Guaranteed Compatibility: Programmed to match your vehicle’s options and systems perfectly.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
As a technician, I’ve seen countless vehicle owners waste time and money on generic, non-programmed control modules. The PCM is the central nervous system of your truck. Without precise VIN programming, it can’t correctly manage everything from fuel injection timing to transmission shift points and anti-theft systems. A module that isn’t matched to your vehicle can create more problems than it solves. Our process ensures this module communicates flawlessly with your specific vehicle, just as the original did from the factory, saving you from frustrating complications and ensuring a lasting repair.
Guaranteed Fitment for Your Vehicle
This module is a direct replacement for the following service numbers: 12581565, 8125815650, 12570557, 12570558, 12576106, 12576869, 12578127, 12581565, 8125781270, 88864822, and 89017733. It is compatible with a wide range of GM models, including:
- AVALANCHE 2500 03
- ASTRO 03
- BLAZER S10/JIMMY S15 03
- CTS 04 (Base, ID 12581565)
- CORVETTE 04 (ID 12581565)
- EXPRESS & SAVANA VANS (1500, 2500, 3500) 03
- S10/S15/SONOMA 03 (4.3L)
- SAFARI (GMC) 03
- SIERRA & SILVERADO PICKUPS (1500, 2500, 3500) 03 (Gasoline, 4.3L & 8.1L)
- SUBURBAN 2500 03 (8.1L)
- YUKON XL 2500 03 (8.1L)
Frequently Asked Questions
Do I need to program this module?
No. We handle all the programming for you before shipment. After you place your order, you will need to provide us with your vehicle’s VIN. The module will arrive ready for installation.
How do I provide my VIN number?
After your purchase is complete, we will contact you for your VIN, or you can send it to us through the messaging system. We cannot ship the part until we have this information to ensure correct programming.
Is this a difficult part to install?
For most of the listed vehicles, the PCM is in an accessible location (e.g., under the battery tray or in the engine compartment) and can be replaced with basic hand tools. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the module. However, we always recommend consulting a repair manual for your specific vehicle.
Will I need to perform a security relearn procedure?
In many cases, yes. GM vehicles of this era often have a Passlock or other anti-theft system that may require a simple ‘relearn’ procedure after the new PCM is installed. This can usually be done without special tools and instructions are widely available online.
How can I be sure this 2003 GMC Yukon XL 2500 PCM 12576106 is the right part?
The best way is to match the service number from your original module to one of the numbers listed in our description. Providing us with your VIN for programming is the final step that guarantees it will work correctly with your vehicle’s specific options.