Is Your GMC Safari Running Rough? Get Back on the Road with Confidence.
If you’re dealing with frustrating issues like a persistent check engine light, poor fuel economy, stalling, or a no-start condition in your GMC Safari, a failing Powertrain Control Module (PCM) is a likely culprit. Don’t let a faulty computer keep your reliable van off the road. This professionally programmed PCM is the definitive, hassle-free solution to restore your vehicle’s performance and dependability.
Common Symptoms of a Failing PCM & Your Direct Solution
A vehicle’s PCM is its brain, controlling everything from fuel mixture and ignition timing to transmission shifting. When it fails, the symptoms can be unpredictable and confusing. This replacement module is designed to solve these exact problems. If you’re experiencing any of the following, this is the part you need:
- Erratic engine performance (stalling, hesitation, rough idle)
- Drastically reduced fuel efficiency
- Failure to pass state emissions tests
- Illuminated Check Engine Light with codes like P0601, P0605, or P0606
- Transmission shifting problems or harsh shifts
- The vehicle won’t start, even with a good battery and starter
By replacing your old unit with this correctly programmed 1999-2001 GMC Safari PCM, you are directly addressing the root cause of these electronic issues and restoring the vehicle’s original operating parameters.
Features & Benefits
- ✔ VIN-Programmed for Your Safari: We flash the module with your vehicle’s specific VIN and the latest GM software updates. This ensures perfect compatibility and performance, eliminating the need for an expensive trip to the dealer.
- ✔ Restored Engine Performance: Say goodbye to rough idling, hesitation, and poor fuel mileage. This module restores crisp engine response and optimal efficiency, making your van run like it should.
- ✔ True Plug-and-Play Installation: Once you receive your module, installation is straightforward. In most cases, no further programming is required. Just install it, perform a quick security relearn if needed, and you’re ready to go.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for part numbers 16265035, 16263494, and others, ensuring a perfect fit for your GMC Safari, Chevy Astro, and many other compatible GM trucks and vans.
- ✔ Pass Emissions with Confidence: A properly functioning PCM is crucial for passing state emissions tests. Our modules are programmed to meet factory specifications, clearing those stubborn engine codes for good.
An Expert’s Note on Programming: As a technician with over 20 years on the shop floor, I’ve seen countless issues caused by improperly matched control modules. Using a generic or junkyard PCM without correct programming is a recipe for disaster—it can lead to transmission shifting problems, security system lockouts, or even a no-start condition. That’s why we insist on programming every single module to your specific VIN. It’s not just about convenience; it’s about doing the job right the first time and giving you the reliability your vehicle was built for.
Choosing the right 1999-2001 GMC Safari PCM is critical. Our process ensures you receive a component that is not only physically compatible but electronically identical to the one your vehicle needs, updated with the newest software from the manufacturer for optimal performance.
Frequently Asked Questions
Do I need to send my old computer back?
No, there is no core charge or need to return your original module. This is a direct purchase of a replacement PCM programmed for your vehicle.
Is any additional programming needed after I install it?
Our module is shipped ready to install. However, some GM vehicles of this era require a security relearn procedure (often called a CASE relearn or Passlock relearn) to sync the new PCM with your vehicle’s anti-theft system. This is a simple procedure that can typically be done without special tools and instructions can be easily found online.
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as the programming is specific to your van.
What if my original part number is different from 16265035?
This module is a compatible replacement for several part numbers, including 16263494. As long as your vehicle’s year, make, and model are on our compatibility list, we will use your VIN to flash the correct software for a perfect match.
Will this fix my check engine light?
If your check engine light is on due to an internal failure of the PCM (common codes are P0601-P0606), then yes, this will resolve the issue. However, if the code is for a different sensor or component, that part will still need to be addressed. A proper diagnosis is always recommended.
