Is your work van or truck suddenly running rough, stalling, or refusing to start? A faulty Powertrain Control Module (PCM) can bring your business to a grinding halt, costing you time and money. Get your vehicle back in service quickly and reliably with this pre-programmed engine computer. We flash this module with the latest official GM software updates tailored specifically to your vehicle’s VIN, ensuring a straightforward installation and restored performance right out of the box.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of frustrating and hard-to-diagnose issues. If your truck or van is experiencing any of the following, this module is the definitive solution:
- Severe performance issues, including poor acceleration and reduced fuel economy
- Engine stalling, misfiring, or rough idling
- Harsh or erratic automatic transmission shifting
- Complete no-start or intermittent starting problems
- Illuminated Check Engine Light with communication error codes (e.g., P0601, P0606)
- Other warning lights on the instrument cluster with no apparent cause
This replacement 2005-2007 Savana 3500 PCM 12589462 is designed to resolve these problems, restoring the dependable operation you count on to get the job done.
Features & Benefits
- ✔ Programmed to Your VIN: Arrives ready for installation with no need for an expensive trip to the dealership for programming.
- ✔ Latest GM Software: Flashed with the most current vehicle calibrations for optimal engine performance, fuel efficiency, and emissions control.
- ✔ Plug & Play Installation: Once the simple security relearn procedure is completed, the vehicle will start and run correctly.
- ✔ Guaranteed Compatibility: A direct replacement for part numbers 12589462, 12602801, and 89017749.
- ✔ Restored Drivability: Solves common issues like rough idle, poor shifting, and stalling to make your vehicle drive like new again.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician, I’ve seen countless people try to save a few dollars by installing a used computer from a salvage yard. It never works. Modern GM vehicles use a sophisticated anti-theft system (VATS/Passlock) that permanently links the PCM to the original vehicle’s BCM and ignition key. Without proper programming to your specific VIN, the module will not allow the engine to start. Our service eliminates this critical roadblock. We handle the complex programming on our end, so you receive a part that communicates correctly with your vehicle’s systems from the moment you install it. This is the only way to ensure a successful and lasting repair.
Don’t let a bad computer keep your vehicle off the road. This professionally programmed 2005-2007 Savana 3500 PCM 12589462 is the most efficient and reliable way to restore your vehicle’s brain and get back to work. By providing us with your VIN at checkout, you ensure a perfect software match for a hassle-free repair.
Frequently Asked Questions
Do I need to do any programming myself?
No. This module arrives pre-programmed to the VIN you provide. The only thing you will need to do is a simple security relearn procedure, which involves cycling the ignition key. This can be done in your driveway and takes about 30 minutes.
How do I provide my VIN number?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as it is required for the programming service.
Is this compatible with other part numbers?
Yes, this module is a direct replacement for several service numbers, including 12589462, 12602801, and 89017749. As long as your original module carries one of these numbers, this unit will be a compatible replacement.
What is the security relearn procedure?
The security relearn procedure syncs the new PCM with your vehicle’s anti-theft system. It typically involves turning the key to the ‘ON’ position for 10 minutes, then ‘OFF’ for 10 seconds, and repeating this cycle three times. We include detailed instructions with your order.
Will this fix my transmission shifting problems?
If the PCM is the root cause of your shifting issues, then yes, this part will correct them. The PCM controls both engine and transmission functions, and a faulty unit can cause erratic shifting, delayed engagement, or slipping. This module, with its fresh programming, will restore proper transmission control.
What vehicles does this 2005-2007 Savana 3500 PCM 12589462 fit?
While it’s a primary fit for the Savana, this versatile PCM is also compatible with a wide range of GM trucks and vans from the same era, including the Silverado, Sierra, Express, Suburban, Yukon XL, and more. Please refer to the detailed fitment list on the product page to confirm compatibility with your specific model and engine.