Is Your 2006 Uplander Running Rough? It Could Be The PCM.
If you’re experiencing frustrating and unpredictable issues with your 2006 Chevrolet Uplander or another compatible GM vehicle, the root cause might be the very brain of your engine’s operation: the Powertrain Control Module (PCM). A failing PCM can manifest in a variety of ways, from a simple check engine light to severe drivability problems that can leave you stranded. Symptoms like random stalling, poor acceleration, harsh transmission shifts, and a sudden drop in fuel economy are classic signs that your vehicle’s central computer is struggling. Don’t continue to replace sensors and other parts hoping for a fix. This pre-programmed PCM, part number 12600928, is the direct, reliable solution to restore your vehicle’s performance and dependability.
We recently had a 2006 Pontiac G6 in the shop with a ghost of a problem. The owner had already replaced the spark plugs, ignition coils, and even the fuel pump chasing an intermittent stalling issue that never set a consistent trouble code. The car would run fine for days, then suddenly die at a stoplight. Our initial scans showed nothing, but during a live data test drive, we saw the PCM voltage drop erratically just before a stall. The module was internally shorting when it heated up. We installed a VIN-programmed PCM, and the problem was solved instantly. It’s a textbook example of how a failing computer can mimic a dozen other mechanical issues, costing the owner time and money on parts they didn’t need.
The Direct Solution: A Programmed 2006 Uplander PCM
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The biggest hurdle in replacing a modern vehicle computer is the need for specialized, dealer-level programming. We eliminate that step for you. When you purchase this module, you simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians will then use that VIN to load the latest, most stable GM-certified software directly onto the module. This ensures that the PCM is perfectly matched to your vehicle’s specific configuration, including its engine, transmission, and emissions equipment. The result is a true plug-and-play component that restores factory performance without a trip to the dealership.
Symptoms This Powertrain Control Module Will Fix
- ✔ Persistent Check Engine Light (CEL) with codes related to the PCM or its circuits.
- ✔ Unexplained engine stalling, hesitation, or stumbling.
- ✔ Rough or unstable idling.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Harsh, erratic, or delayed transmission shifting.
- ✔ Engine cranks but refuses to start (no-start condition).
- ✔ Failure to communicate with diagnostic scan tools.
- ✔ Failed emissions test due to module-related faults.
Guaranteed Fitment for Your Vehicle
This module, service number 12600928 (interchangeable with 19210070), is a direct-fit replacement for a range of GM vehicles. Please verify your original part number matches before ordering. This part is compatible with the following models:
- 2006 Pontiac G6 (with ID 12600928)
- 2006-2007 Buick Rendezvous (with 3.5L engine)
- 2006 Chevrolet Uplander (with 3.5L engine)
- 2006 Pontiac Torrent
- 2006 Chevrolet Malibu (with 3.5L engine)
- 2006 Chevrolet Equinox
- 2006 Buick Terraza (with 3.5L engine)
- 2006 Pontiac Montana SV6 (with 3.5L engine)
Frequently Asked Questions
Is this PCM really plug-and-play?
Yes! Because we program the module to your specific VIN before shipping, it will be ready to install right out of the box. In most cases, you will not need to visit a dealer. Some vehicles may require a simple security relearn procedure, which takes a few minutes and can be done without any special tools.
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. You can typically find your VIN on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your insurance and registration documents.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls both the engine and the transmission. If your transmission issues are electronic and caused by a faulty module, this part is the correct fix. It will not fix internal mechanical failures within the transmission itself.
Do I need to return my old PCM?
No core charge is required for this part. You can keep your old module or dispose of it responsibly.
What tools are needed for installation?
Installation is typically straightforward and requires basic hand tools, such as a socket set to disconnect the battery and remove the module’s mounting bolts. Always disconnect the negative battery terminal before beginning any work.