Is Your GM Truck or SUV Acting Up? Get It Back on the Road.
If you’re dealing with frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or even a no-start condition, a failing Powertrain Control Module (PCM) is often the culprit. Your vehicle’s PCM is its brain, controlling everything from the engine and transmission to fuel delivery. When it fails, it can bring your entire vehicle to a halt. This Programmed GM PCM 89017750 is the direct, reliable solution to get your work truck, family SUV, or daily driver running like it should again.
Common Symptoms & Your Solution
A faulty PCM can manifest in numerous ways, often mimicking other component failures. If you’ve been chasing ghosts in your electrical system or have experienced any of the following, it’s time to check your engine computer:
- Check Engine Light (CEL) with communication-related Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606.
- Vehicle won’t start or stalls intermittently.
- Harsh or unpredictable transmission shifting.
- A noticeable drop in fuel mileage.
- Engine misfires or rough idling.
- Failure to pass an emissions test.
This module is the definitive fix. We take the guesswork out of the repair by flashing the unit with the latest official GM software updates, specifically matched to your vehicle’s VIN. This ensures perfect compatibility and optimal performance right out of the box.
Features & Real-World Benefits
- ✔ VIN-Specific Programming: We flash the module to your exact VIN before shipping. This means no expensive trips to the dealership for programming—it’s ready for installation upon arrival.
- ✔ Latest GM Software Updates: Your PCM will be loaded with the newest calibrations from General Motors, correcting factory bugs and improving engine and transmission efficiency.
- ✔ Direct-Fit Replacement: Engineered to match the original factory unit, guaranteeing a perfect fit and seamless connection with your existing wiring harnesses.
- ✔ Restored Drivability: Get back the smooth acceleration, crisp shifting, and reliable starting you depend on for work and family.
- ✔ Broad Compatibility: A single, reliable solution for a wide range of popular GM trucks and SUVs from 2003-2007.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight from a 20-Year Tech
I remember the days when replacing a PCM was a two-step nightmare. First, you’d install the hardware, then you’d have to get the vehicle towed to a dealer and pay them hundreds just to program it. It turned a one-hour job into a multi-day ordeal. A pre-programmed module like this Programmed GM PCM 89017750 changes the game. It puts the power back in the hands of DIYers and independent shops. The fact that it arrives with the latest software means you’re not just replacing a part; you’re giving the vehicle’s operating system a fresh start, often fixing small drivability quirks you didn’t even know were related. It’s the smartest way to do this repair.
Frequently Asked Questions
How does the VIN programming process work?
It’s simple. After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). Our technicians use this number to access the latest GM software for your specific make, model, engine, and options. We then flash this software onto the PCM before it is shipped to you.
Will I need to perform any other procedures after installation?
In many cases, this is a plug-and-play installation. However, depending on your specific GM vehicle, you may need to perform a simple security relearn procedure (often called Passlock or VATS) and potentially a Crankshaft Variation Relearn (CASE). These procedures can typically be done without special tools and instructions are widely available online.
How can I be sure my old PCM is the problem?
While the symptoms listed above are strong indicators, the best way to be certain is with a proper diagnosis from a qualified technician using a professional scan tool. Common trouble codes pointing to internal PCM failure, such as P0601 (Internal Control Module Memory Check Sum Error), are a definitive sign.
Is this compatible with my vehicle?
This Programmed GM PCM 89017750 is compatible with a wide array of GM models including the Avalanche, Escalade, Sierra, Silverado, Suburban, Tahoe, and Hummer H2 from approximately 2003 to 2007. Please review the detailed fitment list on this page to confirm it matches your specific year and model.
What does the warranty cover?
This unit is backed by our one-year replacement warranty. This protects you against any defects in the module itself for a full year from the date of purchase.