Is Your Escalade or GM Truck Running Rough?
Dealing with frustrating issues like a persistent check engine light, erratic shifting, stalling, or a no-start condition can bring your day to a halt. These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep your reliable truck or SUV sidelined. This genuine OEM engine computer is the straightforward, dependable solution to restore your vehicle’s performance and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing PCM is the likely culprit. This pre-programmed unit is designed to be the definitive fix for:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to internal module failure (e.g., P0601, P0604, P0605)
- Harsh or unpredictable transmission shifting
- Poor fuel economy
- Engine stalling, stumbling, or misfiring
- Complete no-start or no-communication issues
Instead of struggling with a problematic vehicle, install a reliable replacement that’s ready to work. We handle the complex programming, so you can focus on the simple installation. A properly functioning computer is essential for optimal engine performance, and our 1999 Escalade PCM 16266645 is the correct part to solve your issues.
Features & Benefits
- ✔ Plug-and-Play Solution: This unit arrives professionally programmed to your vehicle’s specific VIN, eliminating the need for expensive dealership programming.
- ✔ Updated OEM Software: We flash the module with the latest GM software updates available for your vehicle, ensuring optimal performance and efficiency.
- ✔ Restored Drivability: Get back the smooth acceleration, crisp shifting, and dependable starting you expect from your vehicle.
- ✔ Cost-Effective Repair: An affordable and reliable alternative to a costly new computer, getting your truck back in service without breaking the bank.
- ✔ Broad Compatibility: A direct replacement for multiple part numbers, including 09355699, ensuring a perfect fit for a wide range of GM trucks, vans, and SUVs.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of VIN Programming
On these late-90s GM vehicles, the PCM is the central hub that communicates with the engine, transmission, and the anti-theft system (Passlock/VATS). Simply swapping a computer from another vehicle won’t work—it will trigger the security system and prevent the engine from starting. That’s why our VIN-specific programming is not just a convenience, it’s a necessity. We ensure the module is a perfect digital match for your vehicle’s unique configuration, allowing all systems to communicate correctly right out of the box. This saves you from diagnostic headaches and the need for specialized tools after installation.
Take the guesswork out of your repair. By providing your VIN at checkout, you ensure that the 1999 Escalade PCM 16266645 you receive is prepared specifically for your vehicle. It’s the most efficient way to solve complex electronic issues and restore the dependable performance your GM vehicle is known for. Get your truck, van, or SUV running properly again with this reliable, ready-to-install engine computer.
Frequently Asked Questions
What information do I need to provide?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is critical for us to program the computer correctly for your specific vehicle options and software.
Is this a new part?
No, this is a tested, genuine OEM computer that was sourced from a salvaged vehicle. We ensure it is fully functional before programming it with the latest updates for your VIN.
Will I need to do anything else after installation?
In most cases, this is a plug-and-play installation. However, some GM vehicles of this era may require a security relearn procedure or a Crankshaft Position Sensor (CASE) relearn, which can often be done without special tools or by a local mechanic with a capable scan tool. We recommend consulting a service manual for your specific model.
How do I know if this part number is correct for me?
This unit replaces several part numbers, including 09355699 and 16266645. The best way to ensure compatibility is to match one of the part numbers listed in the description to the one on your current computer. If you are unsure, please contact us with your VIN before ordering.
What does “programmed with the newest updates” mean?
Over the years, manufacturers like GM release software improvements to fix bugs, improve transmission shifting, or enhance engine performance. We connect your 1999 Escalade PCM 16266645 to our official GM equipment and load the most recent software version available for your specific VIN, ensuring you get the best possible performance.