Restore Your Vehicle’s Performance and Reliability
Is your Pontiac Grand Am, Chevy Impala, or another GM vehicle suffering from erratic engine behavior, a persistent check engine light, or even a no-start condition? A failing Powertrain Control Module (PCM) is often the culprit, disrupting communication between your engine and transmission and causing a host of frustrating problems. This replacement PCM, part number 89017735, is the definitive, hassle-free solution to get your daily driver back on the road, running exactly as it should.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty computer is the likely cause. This pre-programmed module is designed to solve them:
- Persistent Check Engine Light (CEL)
- Poor or declining fuel economy
- Engine stalling, stumbling, or rough idling
- Harsh or incorrect automatic transmission shifting
- Failure to pass emissions testing
- Communication error codes (U-codes)
- No-start condition where the engine cranks but won’t fire
Instead of paying for expensive diagnostic time and programming fees at a dealership, this unit arrives at your door ready for installation. We flash the module with the latest GM-certified software updates using the VIN you provide, ensuring it’s a perfect match for your vehicle’s specific configuration. This is the most efficient way to restore your car’s brainpower. For anyone needing a dependable 2003-2005 Grand Am PCM, this is the ideal fix.
Expert Insight: Why VIN Programming is Non-Negotiable
As a technician with over two decades of experience, I can’t stress this enough: a PCM is not a one-size-fits-all part. Your vehicle’s VIN is like its DNA, containing critical information about its engine, transmission, emissions equipment, and even security system. Installing a generic, non-programmed module is a recipe for disaster—it can lead to check engine lights, incorrect transmission behavior, and anti-theft system lockouts. Our VIN-specific programming service ensures this module communicates flawlessly with every other system in your car, just like the original did from the factory.
Features & Tangible Benefits
- ✔ Plug & Play Installation: This module arrives pre-programmed to your specific VIN. Simply install it and perform the straightforward security relearn procedure to get back on the road.
- ✔ Eliminate Dealer Hassles: No need for expensive towing or scheduling appointments for programming. We handle the complex part for you before it ships.
- ✔ Latest GM Software: We flash the unit with the newest factory updates, which can solve underlying drivability issues you didn’t even know were software-related.
- ✔ Guaranteed Compatibility: A direct replacement for part numbers 89017735, 12583827, and 12583826, ensuring a perfect fit and function for the extensive list of compatible GM vehicles. A properly functioning 2003-2005 Grand Am PCM is critical for vehicle health.
- ✔ Restored Performance & MPG: A correctly functioning PCM ensures your engine and transmission are operating at peak efficiency, restoring lost power and fuel economy.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, you will need to send us a message with your vehicle’s 17-digit VIN. We cannot program and ship your 2003-2005 Grand Am PCM until we receive this information.
What is a security relearn procedure?
This is a simple procedure that syncs the new PCM with your vehicle’s anti-theft system. It typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. No special tools are required, and instructions are readily available online for your specific model.
Is this the correct part for my vehicle?
Please check the fitment list on this page and verify that your old module has one of the compatible part numbers (89017735, 12583827, 12583826). Providing us with your VIN ensures we program it correctly for your exact make and model.
Will this fix my car’s problem for sure?
While this PCM is the solution for the symptoms listed, it’s essential to ensure your vehicle has been properly diagnosed. This part will not fix underlying mechanical or wiring issues. However, if the PCM has been identified as the faulty component, this is the correct and most reliable solution.
What tools are needed for installation?
Installation is straightforward for a DIYer with basic mechanical skills. You will typically only need a set of metric sockets and a ratchet to disconnect the battery and remove the mounting bolts for the old PCM.