Get Your GM Truck or Van Back to Work, Fast.
Is your Silverado, Sierra, or Savana van running rough, stalling, or showing a persistent check engine light? A failing Powertrain Control Module (PCM) can bring your workhorse to a grinding halt, costing you valuable time and money. This direct-replacement PCM, programmed specifically for your vehicle’s VIN with the latest GM software updates, is the definitive solution to restore performance and get you back on the road with confidence.
Common Symptoms of a Failing GM PCM & Your Solution
A faulty PCM is the hidden cause behind many frustrating drivability issues. If you’re experiencing any of the following, this module is the reliable fix you need:
- Erratic or harsh transmission shifting
- Poor fuel economy and engine performance
- Engine stalling or random misfires
- Complete no-start condition where the engine cranks but won’t fire
- Check Engine Light with Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or other communication errors.
Don’t let a bad computer keep your vehicle sidelined. This professionally prepared, programmed 12589462 PCM is the key to resolving these issues and restoring your vehicle’s factory-spec operation.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash this module with the latest GM-certified software using your vehicle’s specific VIN. This ensures perfect compatibility and eliminates the need for an expensive trip to the dealership.
- ✔ Plug-and-Play Installation: Because the unit arrives pre-programmed, installation is straightforward. In most cases, you can simply install the module and perform a security relearn procedure, getting you back to work faster.
- ✔ Resolves Drivability Issues: Engineered to correct problems like harsh shifting, inaccurate fuel readings, stalling, and false check engine light codes (DTCs) caused by a faulty original computer.
- ✔ Direct OEM Replacement: This module is a direct replacement for part numbers 12589462, 12602801, and 89017749, guaranteeing a perfect fit and function for your specific GM truck, van, or SUV.
- ✔ Backed by Our Warranty: This unit is backed by our one-year replacement warranty. Drive with the assurance that your investment is protected.
Expert Insight from a 20-Year Technician:
I’ve seen countless vehicle issues caused by improperly programmed or generic ‘one-size-fits-all’ modules. For these specific GM work trucks and vans, the PCM is the central nervous system. Our process of programming this programmed 12589462 PCM with the latest GM updates before it ships is critical. It ensures all vehicle systems—from the transmission to the fuel injectors—operate exactly as the manufacturer intended, restoring not just function, but original factory performance and reliability.
Frequently Asked Questions
What information do I need to provide?
After placing your order, 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 vehicle configuration.
Is any additional programming required after I install it?
While the core engine and transmission programming is complete, you will likely need to perform a security relearn procedure (often called a CASE relearn or Passlock relearn). This syncs the new PCM with your vehicle’s anti-theft system and can typically be done without special tools. Instructions are widely available online for your specific model.
Where can I find my VIN?
Your VIN can be found on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
Will this fix my transmission shifting problems?
Yes, in many cases. The PCM controls both engine and transmission functions. If your shifting issues are caused by faulty electronic signals or a failing computer, this programmed 12589462 PCM is designed to correct them by restoring proper communication and control.
Do I need to send my old computer (core) back?
No core charge or return is required for this part. You can keep or dispose of your old module.
How do I know if this part fits my vehicle?
Please review the detailed fitment list on this page. This module is a direct replacement for part numbers 12589462, 12602801, and 89017749. Matching one of these numbers and your vehicle model ensures compatibility.