Are you chasing electrical gremlins in your GM truck or SUV? Intermittent warning lights, power windows with a mind of their own, or a security system that prevents your vehicle from starting are classic signs of a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can cause some of the most frustrating and hard-to-diagnose issues. This isn’t just a part; it’s the central nervous system for your vehicle’s body electronics, and when it fails, it can make your reliable truck feel unpredictable.
This is your direct, hassle-free solution. We offer a genuine replacement Body Control Module, compatible with part numbers 19208539, 9371990, and 9385236. The best part? We handle the programming for you. Simply provide your vehicle’s VIN at checkout, and our experts will flash the module with the latest GM-approved software specifically for your truck. This means no expensive trip to the dealership for programming. It arrives at your door ready for installation, saving you significant time and money. This is the same process we’d use in a professional shop to ensure a reliable, long-lasting repair for a 2000 Yukon BCM or related GM vehicle.
A Technician’s Notebook: The Silverado with a Ghost
I remember a 2000 Silverado 1500 that came into the bay with a laundry list of bizarre symptoms. The owner said the dome lights would flicker randomly, the radio would shut off, and sometimes the truck just wouldn’t crank, showing the security light. He’d already replaced the battery and checked the grounds. After connecting my scan tool, I saw a slew of ‘U’ codes, indicating lost communication between various modules. This pointed directly at the BCM. Instead of sending him to the dealer for a new module and programming, we sourced a pre-programmed unit just like this one. The swap took less than 30 minutes, and every single electrical issue was gone. It’s a textbook case of how a failing 2000 Yukon BCM or its equivalent can wreak havoc, and how the right part makes for a simple, effective fix.
Common Signs of a Failing GM BCM
If your vehicle is experiencing any of the following, a faulty BCM could be the culprit. A failing module often won’t store a specific trouble code, but you might see communication codes (like U0140) if you have a capable scanner.
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft system light is illuminated, causing a no-start condition.
- ✔ The horn sounds randomly or doesn’t work.
- ✔ Inaccurate gauge readings or warning lights that come and go.
- ✔ Issues with the radio or climate control functions.
A Straightforward Guide to Installation
Replacing the BCM is a job a confident DIYer can handle. The key is patience and taking your time. While specific steps vary slightly by model, here is a general guide.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On most of these GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, to the left of the steering column. On S-series trucks and Blazers, it may be in the center dash area.
- Remove Connectors: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be depressed. Do not force them.
- Swap the Module: Unbolt or unclip the old BCM from its mounting bracket and remove it. Install your new, pre-programmed module in its place.
- Reconnect Everything: Plug the electrical connectors firmly into the new BCM. You should hear a click as they lock into place. Reconnect the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions: lights, windows, locks, horn, and wipers to ensure proper operation.
Important Post-Installation Procedures
Because this module is pre-programmed, most functions should work immediately. However, depending on your vehicle’s specific configuration, a couple of quick relearn procedures may be necessary. This is normal and ensures all systems communicate correctly.
- Airbag System Sync: If the 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 required to ensure your brake lights and traction control system function correctly.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the following vehicles, matching service numbers 19208539, 9371990, or 9385236. Please verify the ID number on your original part to ensure a perfect match.
- 2000 Chevrolet Silverado 1500 / 2500
- 2000 GMC Sierra 1500 / 2500
- 2000 Chevrolet Tahoe
- 2000 Chevrolet Suburban 1500 / 2500
- 2000 GMC Yukon (excluding Denali)
- 2000 GMC Yukon XL 1500 / 2500
- 2001 Chevrolet S10 / Blazer S10
- 2001 GMC Sonoma S15 / Jimmy S15
- 2001 Oldsmobile Bravada
- 2001 Chevrolet Astro
- 2001 GMC Safari
Frequently Asked Questions
2000 Yukon BCM
Will this fix my truck’s security light and no-start problem?
If the Body Control Module is the root cause of the security system issue, then yes, this pre-programmed is designed to resolve that problem and restore normal starting operation.