Restore Peak Performance to Your GM Vehicle
Is your Pontiac, Chevrolet, or Buick suffering from frustrating issues like a persistent check engine light, rough idling, poor fuel economy, or failing emissions tests? These are classic signs of a failing Powertrain Control Module (PCM). Don’t let a faulty computer keep you off the road. This replacement PCM is the reliable, straightforward solution to restore your vehicle’s engine performance and drivability.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of confusing problems. If you’re experiencing any of the following, this module is your definitive fix:
- Erratic or harsh transmission shifting
- Engine stalling or refusing to start
- Significant drop in gas mileage
- Check Engine Light (CEL) with codes like P0601, P0602, or P0606
- Communication errors with diagnostic scan tools
This isn’t just a replacement part; it’s a complete solution. We take the guesswork out of the repair by pre-programming this programmed 89017735 PCM specifically to your car’s Vehicle Identification Number (VIN). This ensures it works seamlessly with your existing systems right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software updates using your VIN, guaranteeing perfect compatibility and communication with your car’s systems.
- ✔ Plug-and-Play Installation: Because it’s pre-programmed, this module is ready for installation upon arrival. No expensive trip to the dealership for programming is required.
- ✔ Solves Complex Issues: Engineered to correct common drivability problems, from poor performance to no-start conditions, restoring your engine’s proper function.
- ✔ Broad GM Compatibility: This module is a direct replacement for part numbers 89017735, 12583827, and 12583826, fitting a wide range of GM sedans, SUVs, and minivans from 2003-2005.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty. Drive with the confidence that you’re protected.
From the Technician’s Bench
“Over 20 years, I’ve seen countless drivers get stuck with generic, un-programmed modules. They install it, and the car still won’t start because the anti-theft system (VATS/Passlock) isn’t synced, or the transmission shifts like it’s broken. The single most important step is VIN-specific programming. It ensures the PCM knows it belongs in *your* car, allowing it to correctly manage everything from fuel mixture to shift points. Getting a pre-programmed unit like this programmed 89017735 PCM is the difference between a quick, successful repair and a week of headaches.”
By providing us with your VIN at checkout, you ensure that the programmed 89017735 PCM you receive is a true plug-and-play component. It’s the most effective way to get your trusted daily driver back on the road, running exactly as it should.
Frequently Asked Questions
How do I provide my VIN?
After you complete your purchase, simply 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 essential for programming.
Will I need to do any additional programming after installation?
No. This module is programmed to your vehicle’s VIN before it ships. In most cases, it is a direct plug-and-play installation. However, some vehicles may require a simple security relearn procedure, which can be done without any special tools and typically takes about 30 minutes. Instructions can easily be found online for your specific model.
My original part number is 12583827. Will this work?
Yes. This module, 89017735, is a fully compatible replacement for part numbers 12583827 and 12583826. As long as your vehicle is on the compatibility list, this unit will function correctly once programmed to your VIN.
Where is the PCM located on my vehicle?
On most of the compatible models (like the Bonneville, LeSabre, Century, Rendezvous), the PCM is located in the engine compartment, typically inside the air filter box assembly for protection. This makes it relatively easy to access for replacement.
Is this a difficult part to replace myself?
For someone with basic mechanical skills, this is a very manageable job. It typically involves disconnecting the battery, removing the air filter housing, unplugging the electrical connectors from the old module, swapping it with the new one, and reconnecting everything. The most important part is ensuring the battery is disconnected before you begin.