Restore Your Buick’s Performance and Reliability
Is your trusty 1996 Buick LeSabre running rough, shifting erratically, or struggling with a persistent check engine light? A failing Powertrain Control Module (PCM) is often the hidden culprit, disrupting your vehicle’s performance and leaving you searching for a reliable solution. This professionally programmed PCM is the definitive, hassle-free fix to restore your car’s original drivability and get you back on the road with confidence. We take the guesswork out of the repair by flashing the unit with the latest GM software updates, specifically matched to your vehicle’s VIN before it ever leaves our facility.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous frustrating ways. If you’re experiencing any of the following, a replacement 1996 Buick LeSabre PCM is the most likely solution:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0605)
- Poor or erratic automatic transmission shifting
- Engine stalling, stumbling, or misfiring
- Reduced fuel economy
- Failure to pass emissions testing
- No-start or hard-start conditions
This unit is a direct-fit replacement, programmed to be a true plug-and-play solution. Simply install it, and your vehicle’s core systems will function correctly again, eliminating the need for an expensive trip to the dealership for programming.
Features & Benefits
- ✔ Plug & Play Installation: Arrives pre-programmed to your vehicle’s specific VIN. No additional programming required.
- ✔ Restored Engine Performance: Corrects issues with fuel mixture, ignition timing, and emissions for a smoother, more powerful ride.
- ✔ Corrects Transmission Issues: Resolves PCM-related shifting problems by restoring proper communication with the transmission.
- ✔ Latest GM Software: Flashed with the most current vehicle-specific software for optimal performance and efficiency.
- ✔ Guaranteed Compatibility: A perfect solution for the 1996 Buick LeSabre PCM and a wide range of other 1996 GM vehicles.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Brain of Your Buick
Think of the PCM as the central computer for your vehicle. In mid-90s GM cars like your LeSabre, it’s not just managing the engine—it’s the communication hub for the transmission, anti-lock brakes, and more. That’s why VIN-specific programming is non-negotiable. A generic module from a salvage yard won’t work correctly because it’s not calibrated for your car’s specific options and systems. Our VIN programming process ensures that this new brain is a perfect match for your car’s body, restoring the seamless operation the engineers intended.
Frequently Asked Questions
Do I need to do any programming myself?
No. This 1996 Buick LeSabre PCM is a complete plug-and-play solution. We program the unit with your vehicle’s VIN before shipping, so all you have to do is install it.
Where do I provide my vehicle’s VIN?
After you complete your purchase, we will send you an email requesting your VIN. Simply reply to that email, and our technicians will handle the rest.
Is this compatible with other vehicles besides the LeSabre?
Yes, absolutely. This module, service number 16211539, is compatible with a wide range of 1996 GM models, including the Buick Regal, Pontiac Grand Prix, Chevrolet Lumina, Oldsmobile Cutlass, and many others. Please check the full compatibility list on this page to confirm your vehicle.
What if my original part number is different?
This part is a direct replacement for several service numbers, including 88963800, 16211539, and 16231853. As long as your original module carries one of these numbers, this unit will be a perfect fit.
Will this fix my car’s hard starting and rough idle?
While many issues can cause these symptoms, a failing PCM is a very common cause. This part is designed to correct processor-related faults that lead to poor engine performance, rough idling, stalling, and hard starting.
What kind of warranty is included?
This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind in your repair.