Restore Full Electrical Function to Your GM Truck or SUV
Is your 2000 GMC Sierra 1500, Silverado, Tahoe, or Yukon plagued by frustrating electrical gremlins? Intermittent power windows, flickering lights, a malfunctioning security system, or unexplained battery drain are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it malfunctions, it can create a cascade of confusing and unpredictable issues. This replacement Body Control Module, part number 19208539, is the definitive solution to restore your vehicle’s comfort and convenience features to factory-perfect operation.
We had a 2000 Silverado in the shop that was driving the owner crazy. The dome lights would flicker randomly, the radio would sometimes lose power, and worst of all, the ‘Security’ light would flash, preventing the truck from starting. After checking all the usual suspects—battery, alternator, grounds—we hooked up the scan tool and found a slew of communication errors pointing directly to the BCM. After installing a VIN-programmed module just like this one, every single one of the phantom electrical issues vanished. It’s amazing how this one component can be the root cause of so many different problems.
Why Choose a Pre-Programmed BCM?
Replacing a BCM isn’t just a simple swap. A new module from the dealership requires expensive programming with specialized tools to make it communicate with your vehicle’s other systems. Our process eliminates that hassle and cost. We take your vehicle’s VIN and flash this module with the latest, most stable software updates directly from GM. This ensures that when you receive the part, it’s ready for installation, saving you time, money, and a trip to the dealer. This is the most efficient way to get your truck back to 100%.
Diagnosing a Faulty 2000 Sierra 1500 BCM
A failing Body Control Module can manifest in numerous ways, often mimicking other problems. If you’re experiencing several of the issues below, your BCM is the likely culprit. This module is a direct replacement for service numbers 19208539, 9371990, and 9385236, covering a wide range of GM trucks and SUVs from the 2000-2001 model years.
Common Symptoms of a Failing BCM
- ✔ Power windows, locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Inaccurate or non-functional gauges on the instrument cluster.
- ✔ Unexplained battery drain that kills your battery overnight.
- ✔ Warning lights like the airbag or brake light illuminating without a clear cause.
- ✔ The horn honking unexpectedly or not working at all.
Installation and Post-Install Procedures
Installation is straightforward for anyone with basic mechanical skills. The BCM is typically located under the driver’s side of the dashboard. Once the new module is installed, a couple of simple procedures may be required to sync it completely with your vehicle’s other systems. There is no core charge for this part, so you can keep your original module.
- Airbag System Sync: In some cases, the airbag warning light may illuminate after installation. This is because the new BCM needs to be electronically introduced to the airbag’s SDM (Sensing and Diagnostic Module). A professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to clear the light.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control function, a brake pedal position sensor recalibration might be necessary. This can also be performed with a compatible diagnostic tool.
Please note: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance tailored to your exact vehicle.
Frequently Asked Questions
What is a BCM and what does it control?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories not related to the engine. This includes power windows, locks, lights, security system, wipers, and more.
Why do I need to provide my VIN?
Providing your Vehicle Identification Number (VIN) is essential. We use it to program the BCM with the correct software and vehicle-specific options for your truck. This ensures it works correctly right out of the box without needing a trip to the dealership.
Is this part difficult to install?
For someone with basic automotive experience, the physical installation is not difficult. It typically involves removing a few dash panels to access the module. However, be aware that post-installation electronic procedures, like an airbag system sync, may be required using a professional scan tool.
What happens if my airbag light comes on after installation?
If the airbag light is on, the BCM needs to be synced with the airbag module (SDM). A mechanic with a bi-directional scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is this a new or used part?
This is a high-quality, inspected, and tested recycled OEM part that has been programmed with the latest GM software for your vehicle. It offers OEM performance and reliability without the new-part price tag.