Restore Your Truck’s Electrical System with Confidence
Is your GMC Sierra 2500 plagued by frustrating electrical issues? Flickering lights, unresponsive power windows, or a security system that has a mind of its own are all common signs of a failing Body Control Module (BCM). These problems aren’t just an annoyance—they compromise your truck’s reliability and can take it out of commission. This replacement BCM is the definitive, hassle-free solution to get your hard-working truck back to operating exactly as it should.
Common Symptoms & Your Solution
A faulty BCM can create a cascade of baffling electrical problems. If you’re experiencing issues like interior lights not working, power locks failing, erratic gauge behavior, or even a no-start condition due to security system faults (often related to Passlock), your BCM is the likely culprit. Instead of spending hours chasing down wiring issues or paying for expensive dealership diagnostics, this professionally programmed programmed 1999-2000 Sierra 2500 BCM provides a direct path to a reliable repair. It arrives ready to install, flashed with the latest GM software updates specifically for your truck’s VIN.
- ✔ VIN-Programmed for Your Truck: We flash this module with your vehicle’s specific VIN, ensuring it communicates perfectly with your truck’s existing systems for a smooth installation process.
- ✔ Latest GM Software: Your BCM comes loaded with the newest software updates from General Motors, which can resolve common factory bugs and improve overall performance and reliability.
- ✔ No Core Charge Required: Save time and money. There’s no need to send your old, faulty module back to us.
- ✔ Direct-Fit Compatibility: Engineered to be a perfect match for part numbers like 16257125, 19153625, and 8093668010, guaranteeing a proper fit and function in your Sierra, Silverado, or other compatible GM vehicle.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Insight: The BCM as the “Nerve Center”
Think of the BCM as the central nervous system for your truck’s body electronics. It doesn’t control the engine, but it manages almost everything you interact with in the cabin—from the dome light and radio to the power windows and door locks. When it fails, communication between these components breaks down, leading to the bizarre and unpredictable symptoms you’re seeing. Replacing it with a properly programmed 1999-2000 Sierra 2500 BCM is like giving your truck a clean bill of health, restoring clear and reliable communication to all those essential functions.
Don’t let electrical gremlins keep your truck off the road. By installing this pre-flashed module, you’re not just replacing a part; you’re restoring the dependability you count on from your Sierra. This is the most efficient way to solve those nagging electrical issues and get back to work with confidence. With a simple installation and no core return needed, this is the smart fix for any owner looking to get the job done right. Order your programmed 1999-2000 Sierra 2500 BCM today and take control of your truck’s electrical system.
Frequently Asked Questions
What exactly does the BCM do on my Sierra?
The Body Control Module (BCM) is a computer that manages your truck’s non-engine related electronic systems. This includes power windows, power door locks, interior and exterior lighting, the security system (Passlock), warning chimes, and the instrument cluster gauges.
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive the VIN, as the programming is specific to your truck.
Are any other steps needed after installation?
In most cases, this is a straightforward installation. However, depending on your vehicle’s specific configuration, a couple of procedures might be necessary. If the airbag light is on, an ‘Airbag System Sync’ may be required with a professional scan tool. A ‘Brake Pedal Position Relearn’ might also be needed for correct brake light operation. Please refer to a service manual for your specific vehicle.
Will this fix my truck’s no-start problem?
If your no-start issue is caused by the factory Passlock security system (a common failure point managed by the BCM), then this module is very likely to be the solution. It will restore proper security system function.
What if my original part number isn’t on the list?
The part numbers listed (e.g., 16257125, 19153625) are the most common. If your number is different, please contact us with your VIN and original part number. We can verify compatibility to ensure you get the correct module for your truck.
Do I need to send my old BCM back?
No. This product has no core charge. You can keep or dispose of your original module, which saves you the cost and hassle of return shipping.