Restore Full Electrical Function to Your GM Truck
Are you battling frustrating and unpredictable electrical issues in your 1999-2000 GMC Sierra or Chevrolet Silverado? Flickering lights, malfunctioning power windows, a security system that acts on its own, or warning lights that won’t turn off are all classic signs of a failing Body Control Module (BCM). This central command unit is the brain behind your truck’s body accessories, and when it fails, it can make your vehicle feel unreliable and difficult to operate. Don’t let electrical gremlins take over. This direct-fit, VIN-programmed Body Control Module is the definitive solution to restore your truck’s performance and your peace of mind.
Expert Pro Tip
Expert Pro Tip
Before condemning your BCM, always perform a thorough check of your vehicle’s battery, alternator, and primary ground connections (especially the main ground from the battery to the chassis and engine block). A weak power supply or poor ground can mimic BCM failure symptoms. A simple voltage drop test can save you hours of diagnostic time and ensure you’re replacing the right part.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-working power windows, door locks, and mirrors.
- ✔ Erratic interior or exterior lighting, including headlights and dome lights.
- ✔ The security system or anti-theft light staying on, preventing the engine from starting.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ The radio or climate controls turning on and off randomly.
- ✔ False warning lights appearing on the dashboard, such as the airbag light.
- ✔ Communication errors when a diagnostic scan tool is connected.
The Plug-and-Play Solution for Your 1999-2000 Sierra BCM
Replacing a BCM used to mean a trip to the dealership for expensive programming and calibration. We’ve eliminated that hassle. When you order from us, we handle the complex part for you. Simply provide your vehicle’s VIN during checkout, and our technicians will flash the module with the latest, most stable software updates directly from GM. This ensures perfect compatibility with your truck’s specific options and systems. Your new 1999-2000 Sierra BCM will arrive at your door ready for a straightforward installation, with no additional programming required.
Installation and Post-Install Procedures
This BCM is typically located on the left-hand (driver’s) side of the dashboard. Installation is a direct swap for the original unit. After installation, most functions should work immediately. However, due to the complexity of modern vehicle systems, a couple of simple relearn procedures may be necessary:
- Airbag System Sync: If your airbag warning light is illuminated after installing the new BCM, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag’s Sensing and Diagnostic Module (SDM) and must be performed with a professional-grade scan tool.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be needed to ensure correct brake light operation and to satisfy the traction control system.
We make the process even easier with our no core charge policy. You can keep your old module without the hassle of packaging and returning it.
Guaranteed Compatibility
This module is a direct replacement for a wide range of GM trucks and SUVs, ensuring a perfect fit and function. It is compatible with the following part numbers: 19153625, 8191536250, 16257125, 191583625, 8093668010, 8162571250, 8191536250, and 09366801. It fits models including the Chevrolet S10, Blazer, Astro, Silverado and GMC S15, Jimmy, Sonoma, Safari, and Sierra, as well as the Oldsmobile Bravada and Isuzu Hombre from 1998-2000. Please verify the part number on your original module to confirm compatibility.
Frequently Asked Questions
Expert Pro Tip
Before condemning your BCM, always perform a thorough check of your vehicle’s battery, alternator, and primary ground connections (especially the main ground from the battery to the chassis and engine block). A weak power supply or poor ground can mimic BCM failure symptoms. A simple voltage drop test can save you hours of diagnostic time and ensure you’re replacing the right part.