Are you chasing down frustrating electrical gremlins in your GM truck or SUV? Intermittent power windows, flickering interior lights, a security light that won’t turn off, or power locks with a mind of their own are all classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a host of confusing and annoying problems. This isn’t just an inconvenience; it can affect your vehicle’s security and daily usability.
This is a direct-fit replacement Body Control Module, arriving at your door fully programmed to your vehicle’s specific VIN. We handle the complex part for you—simply provide your VIN after purchase, and our technicians will flash the module with the latest GM software updates. This means you can skip the expensive trip to the dealership for programming, saving you time and money. Get your truck’s essential features working reliably again.
A Technician’s Notebook: The Tahoe with a Mind of its Own
I remember a 2000 Tahoe that rolled into my bay with a list of symptoms that had the owner completely stumped. The dome lights would flicker randomly, the driver’s power window worked only when it wanted to, and occasionally the truck wouldn’t start, with the security light flashing on the dash. The owner had already replaced the battery and checked the fuses. After connecting my scan tool, I found multiple communication loss codes (U-codes) pointing to the BCM. These modules are notorious for internal solder joint failures over time, causing exactly this kind of unpredictable behavior. We installed a VIN-programmed BCM, and it was like giving the truck a new brain. All the electrical gremlins vanished instantly. This is a fix I’ve performed hundreds of times on these GM platforms.
Key Signs of a Failing BCM
If your vehicle is experiencing any of the following, a failing BCM is the likely culprit. Replacing your 2000 Tahoe Body Control Module can resolve these issues:
- âś” Erratic or non-functional power windows and door locks
- âś” Interior or exterior lights that stay on, flicker, or don’t work at all
- âś” The security or anti-theft system light stays illuminated, preventing the engine from starting
- âś” Horn honking unexpectedly or not working when pressed
- âś” Inaccurate gauge readings or warning lights on the instrument cluster
- âś” Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, or other body-related faults
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a DIYer with basic tools. Follow these steps to get your truck back in top shape:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On most of these trucks and SUVs, including the 2000 Tahoe, the BCM is located under the driver’s side of the dashboard, to the left of the steering column.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal. Turn the key to the ‘On’ position and test all functions like windows, locks, and lights.
Important Post-Installation Notes
While this module is programmed for your VIN, some vehicle systems may require a quick sync-up procedure after installation:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure your brake lights and traction control system function correctly.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This 2000 Tahoe Body Control Module is a direct replacement for modules with service numbers 19208539, 9371990, or 9385236. It is guaranteed to fit the following vehicles:
- 2000 Chevrolet Tahoe (LH dash)
- 2000 Chevrolet Suburban 1500 & 2500 (LH dash)
- 2000 Chevrolet Silverado 1500 & 2500 Pickup (LH dash)
- 2000 GMC Yukon & Yukon XL 1500/2500 (LH dash)
- 2000 GMC Sierra 1500 & 2500 Pickup (LH dash)
- 2001 Chevrolet S10 / GMC Sonoma (center dash)
- 2001 Chevrolet Blazer / GMC Jimmy S15 (center dash)
- 2001 Oldsmobile Bravada (center dash)
- 2001 Chevrolet Astro / GMC Safari (LH dash)
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping it. It arrives ready for installation, saving you a trip to the dealer.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we receive it for programming.
Is there a core charge for my old part?
No, there is no core charge. You can keep your original module.
What if my airbag light comes on after I install it?
This may happen occasionally. It means the new BCM needs to be synced with the airbag system (SDM). This requires a ‘Setup SDM Primary Key’ procedure, which can be done by a mechanic with a professional scan tool.
Where is the BCM located on my 2000 Tahoe?
The BCM is typically found under the driver’s side dashboard, to the left of the steering column.