Bring Your GM Truck or SUV Back to Life
Are you battling a persistent check engine light, erratic transmission shifting, or frustrating stalling issues in your GM vehicle? A faulty Powertrain Control Module (PCM) is often the hidden culprit behind these performance-robbing problems. This isn’t just a replacement part; it’s a complete, pre-programmed solution designed to restore your vehicle’s factory performance and reliability. We take the guesswork out of the repair by flashing this module with the latest GM software updates, tailored specifically to your vehicle’s VIN. Get back on the road with confidence and the smooth, dependable performance you expect from your truck or SUV.
Common Symptoms & Your Direct Solution
If your vehicle is experiencing any of the following, a failing engine computer is the likely cause. This professionally programmed 16263494 PCM is the definitive solution to correct these issues:
- Check Engine Light (CEL) for internal module failure (Codes P0601-P0606)
- Harsh or delayed transmission shifting
- Engine stalling or cutting out unexpectedly
- Poor fuel economy and reduced engine power
- No-start condition where the engine cranks but won’t fire
- Communication errors with diagnostic scan tools
Features & Tangible 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 right out of the box.
- ✔ Latest GM Software Updates: Your module arrives with the newest factory calibrations, which can improve shifting logic, fuel efficiency, and correct known bugs from the original software.
- ✔ Direct-Fit OE Replacement: Guaranteed to fit and function just like the original, this module replaces part numbers 16263494, 16265035, and 8162634940, ensuring perfect compatibility.
- ✔ Rigorously Inspected & Tested: Every module undergoes a comprehensive inspection and testing process on a live vehicle simulator to ensure it meets or exceeds OEM specifications for long-term reliability.
- ✔ Plug & Play Installation: In most cases, after a simple security relearn procedure (which you can do yourself), your vehicle will be back on the road. No complex setup required.
From the Technician’s Bench: The GM VCMs from this era were workhorses, but they are also known for developing internal faults over time. We’ve seen countless trucks and vans with baffling electronic issues that trace back to a failing computer. Simply swapping in a used unit from a junkyard rarely works due to VIN mismatch and security locks. A professionally programmed 16263494 PCM with updated software isn’t just a fix; it’s a way to eliminate those hard-to-diagnose electronic gremlins and give your reliable GM vehicle a new lease on life.
Frequently Asked Questions
Do I need to do anything after I install the module?
Yes, you will need to perform a Security Relearn Procedure, also known as a CASE relearn. This syncs the new module to your vehicle’s anti-theft system. It’s a simple procedure that typically takes 10-30 minutes and does not require any special tools. We include instructions to guide you through the process.
How do I provide you with my Vehicle Identification Number (VIN)?
After you complete your purchase, simply send us a message with your 17-digit VIN. We cannot program and ship your 16263494 PCM until we receive this information, so please provide it promptly to avoid delays.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM controls the engine and transmission. If your shifting issues are caused by faulty electronic signals or outdated software, this programmed module is the correct solution. It will restore the proper communication and commands for smooth shifting.
What is the difference between a PCM, ECM, and ECU?
These terms are often used interchangeably. ECM (Engine Control Module) and ECU (Engine Control Unit) typically refer to a module that only controls engine functions. A PCM (Powertrain Control Module) is a more integrated unit that controls both the engine and the transmission. For your vehicle, this part serves as the PCM.
How can I be absolutely sure this part fits my vehicle?
The best way to ensure compatibility is to match the part number from your original module. This module replaces 16263494, 16265035, and others. You can also use the detailed fitment list on this page or send us a message with your VIN, and we will be happy to verify the fit for you.