Are you tired of chasing electrical gremlins in your GM truck? One day the power windows work, the next they don’t. The security light flashes randomly, or worse, the truck refuses to start. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times, and the culprit is often a failing Body Control Module (BCM). It’s the central command for your truck’s body electronics, and when it goes, it creates chaos. This isn’t just an inconvenience; a faulty BCM can affect lighting and security systems, compromising your safety.
Forget the expensive dealership visit and the hassle of finding a shop to program a new module. We offer a direct, reliable solution. This Body Control Module is meticulously prepared and flashed with the latest official GM software, specifically matched to your vehicle using your VIN. This means it arrives at your door ready for installation, eliminating the most difficult step of the repair. It’s the smart, efficient way to restore your truck’s functionality and your peace of mind.
Case Study: The Ghost in the Machine
A customer brought in a 2000 Silverado with a classic “ghost” problem. The radio would turn off, the door locks would cycle while driving, and the interior lights would flicker. He’d already replaced the battery and checked all the fuses. Diagnostics showed a handful of communication error codes (U-codes) pointing in different directions. From experience, I know that when multiple, unrelated electronic systems fail at once, the central hub—the BCM—is the prime suspect. We swapped in a VIN-programmed BCM like this one, and every single issue vanished instantly. It saved him hours of further diagnostic labor and the frustration of chasing dead-end leads.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (flickering, staying on, or not working at all).
- ✔ Security or anti-theft system light is on, or the system engages randomly.
- ✔ Communication issues with other modules, often triggering codes like U0140.
- ✔ Inconsistent horn or wiper operation.
- ✔ Problems with the radio or instrument cluster displays.
A Straightforward Guide to BCM Installation
Installing your new 2000 Sierra 1500 BCM is a manageable job for a DIY enthusiast. While the exact location can vary slightly, it’s typically found 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 of these GM trucks and SUVs, the BCM is mounted to a bracket on the left side of the steering column, often behind a plastic kick panel.
- Disconnect and Remove: Carefully unplug the multiple wiring harness 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 your new, pre-programmed BCM in the same location. Securely reconnect all wiring harnesses, ensuring each plug clicks firmly into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note that some vehicles may require the additional relearn procedures mentioned below.
Important Post-Installation Information
Because this module is central to many systems, your vehicle may require one of the following procedures after installation. This is normal and ensures all related components communicate correctly with the new BCM.
- Airbag System Sync: If the airbag warning light is illuminated 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 relearn may be required to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step of the process.
Verified Vehicle Compatibility
This module is a direct fit for a wide range of GM vehicles. Please match your original part’s service number to 19208539, 9371990, or 9385236 to guarantee compatibility.
- ASTRO (2001) – LH dash
- BLAZER S10/JIMMY S15 (2001) – center dash, ID 9385236
- BRAVADA (2001) – center dash
- S10/S15/SONOMA (2001) – center dash
- SAFARI (GMC) (2001) – LH dash
- SIERRA 1500 PICKUP (2000) – LH dash, ID 9371990 or 9385236
- SIERRA 2500 PICKUP (2000) – LH dash, ID 9385236
- SILVERADO 1500 PICKUP (2000) – LH dash, ID 9371990 or 9385236
- SILVERADO 2500 PICKUP (2000) – LH dash, ID 9385236
- SUBURBAN 1500/2500 (2000) – LH dash, ID 9385236
- TAHOE (2000) – LH dash, ID 9385236
- YUKON (2000) – exc. Denali, LH dash, ID 9385236
- YUKON XL 1500/2500 (2000) – LH dash, ID 9385236
Frequently Asked Questions
Do I need to send you my old BCM?
No. There is absolutely no core charge for this part. You can keep your original module.
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your vehicle’s 17-digit VIN. We cannot ship the module until we receive this information, as the programming is essential for it to function in your truck.
Is this part difficult to install?
For someone with basic mechanical skills, it is a straightforward process. The module is typically located under the driver’s side dashboard and involves unplugging the old unit and plugging in the new one. No special programming tools are required on your end.
Will this fix my specific problem?
This module corrects faults originating within the BCM itself. While it resolves the most common electrical issues like erratic windows, locks, and security lights, you should always ensure your vehicle has been properly diagnosed. This part will not fix issues caused by bad wiring, switches, or motors.
What if my airbag light comes on after installation?
This is a known possibility. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag system. A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.