Restore Peak Performance to Your GM Truck or SUV
Is your Suburban, Silverado, Tahoe, or other GM vehicle suffering from perplexing issues like a persistent check engine light, erratic transmission shifting, poor fuel economy, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep you off the road. This direct-fit replacement PCM, part number 89017750, is the definitive solution to restore your vehicle’s reliability and drivability.
This isn’t just a replacement part; it’s a complete solution. We program each module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures that the PCM has the correct factory software and the latest updates from GM, addressing potential bugs and optimizing performance. This process makes installation as straightforward as possible, eliminating the need for expensive dealership programming.
From the Diagnostic Bay
We had a 2005 Sierra 2500 come in with a complaint of intermittent stalling at stoplights and a weird, delayed shift from first to second gear. The check engine light was on with a slew of communication codes that didn’t point to a single sensor. After hours of chasing wires and checking grounds, we tested the PCM’s outputs and found they were dropping out intermittently. We installed one of these VIN-programmed modules, performed the quick security relearn, and the truck ran like it just rolled off the assembly line. The customer was thrilled to have his reliable workhorse back without a massive dealership bill.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various communication or sensor codes.
- ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Vehicle fails to start, even with a good battery and starter.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Other warning lights on the instrument cluster may illuminate.
Installing Your Programmed Suburban 2500 PCM
The key to our service is the VIN-specific programming. After you place your order, simply provide us with your 17-digit VIN. Our technicians will flash the module with the correct software for your vehicle’s exact configuration. When the part arrives, the physical installation is typically straightforward. In most cases, the module is located in the engine bay, under the battery tray on the driver’s side. After swapping the hardware, you or your mechanic may need to perform a security relearn procedure, also known as a CASE (Crankshaft Angle Sensor Error) relearn. This is a standard procedure that syncs the new PCM with your vehicle’s anti-theft system and crankshaft position sensor, and it can be completed with most professional-grade scan tools.
This module is a direct replacement for a wide range of GM trucks and SUVs, superseding multiple service numbers including 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. By ordering this pre-programmed Suburban 2500 PCM, you are getting a reliable, fully updated component ready to solve your vehicle’s electronic issues and restore its factory performance.
Frequently Asked Questions
Do I need to get this PCM programmed by a dealer?
No. We handle the programming for you before we ship the part. Simply provide your vehicle’s VIN during or after checkout, and it will arrive ready for installation.
What is a CASE relearn and is it required?
A CASE (Crankshaft Angle Sensor Error) relearn is a procedure that synchronizes the new PCM with your engine’s crankshaft position sensor. It is often required after PCM replacement to ensure accurate ignition timing and prevent a check engine light. This procedure must be done with a compatible professional scan tool.
Where do I find my vehicle’s VIN?
Your 17-digit VIN can be found on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Is this compatible with my 2004 Silverado 1500?
Yes, this PCM fits a very wide range of GM vehicles from 2003-2007, including the Silverado, Sierra, Tahoe, Yukon, Escalade, and more. Please review the detailed fitment list on this page to confirm compatibility with your specific model and engine.
What happens if I install it without doing the security relearn?
If a security relearn is required and not performed, your vehicle’s anti-theft system may prevent the engine from starting. This is a security feature to prevent theft, and the relearn procedure syncs the new module to your existing keys and security system.