Are you dealing with baffling electrical issues in your 2000 Chevy Tahoe or another compatible GM truck? Flickering lights, malfunctioning power windows and locks, or a security system that acts up for no reason are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can turn your reliable truck into a source of daily frustration. I’ve seen it hundreds of times in my shop: a great vehicle sidelined by what seems like a complex, expensive problem.
This is the definitive, straightforward solution. We offer a replacement Body Control Module, part number 9371990, that arrives at your door completely programmed to your vehicle’s specific VIN. Just provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates. This means no expensive trips to the dealership for programming. You get a part that’s ready for installation right out of the box, designed to restore the functionality and reliability you depend on.
From the Diagnostic Bay: The Case of the Haunted Silverado
A customer brought in his 2000 Silverado 1500 with a list of bizarre symptoms: the dome light wouldn’t turn off, the radio presets would randomly reset, and the horn would sometimes chirp when he used the turn signal. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple communication error codes (U-codes) pointing to the BCM. These GMT800-platform trucks are notorious for BCM failures caused by moisture intrusion or simple component aging. We installed a VIN-programmed 2000 Tahoe Body Control Module (the same unit fits his Silverado), and within an hour, every single electrical gremlin was gone. It’s a common story with a simple fix.
Common Signs of a Failing GM BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔ The horn sounds randomly or doesn’t work at all.
- ✔ Dashboard warning lights illuminate without a clear cause.
- ✔ Communication error codes, such as U0140, are stored in the system.
- ✔ Rapid battery drain when the vehicle is off.
Your Straightforward BCM Installation Guide
Installing your new 2000 Tahoe Body Control Module is a manageable job for a DIYer with basic tools. It’s typically located under the driver’s side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most full-size trucks and SUVs, it’s a black box with multiple wiring connectors located under the driver’s side dashboard, to the left of the steering column. For S-10/Blazer models, it’s often in the center dash area.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed module in place of the old one. Securely reconnect all the wiring harnesses, ensuring each plug clicks firmly into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm proper operation.
Important Post-Installation Notes
While this module is programmed for your vehicle, some systems may require a ‘handshake’ procedure after installation. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
Verified Fitment For These GM Vehicles
This module is a direct replacement for service numbers 19208539, 9371990, and 9385236. It is compatible with the following vehicles and options:
- 2000 Tahoe (LH dash)
- 2000 Suburban 1500/2500 (LH dash)
- 2000 Yukon & Yukon XL 1500/2500 (LH dash)
- 2000 Silverado 1500/2500 Pickup (LH dash)
- 2000 Sierra 1500/2500 Pickup (LH dash)
- 2001 S10/S15/Sonoma (Center dash)
- 2001 Blazer S10/Jimmy S15 (Center dash)
- 2001 Bravada (Center dash)
- 2001 Astro / Safari (LH dash)
Always match your part number or consult with us if you are unsure about compatibility.
Frequently Asked Questions
Frequently Asked Questions
2000 Tahoe Body Control Module
Do I need to do any programming myself?
No. This is the biggest benefit of our service. We program the to your vehicle’s VIN before we ship it. It arrives ready to install, saving you a trip to the dealer.