Restore Your Vehicle’s Core Functions and End Electrical Frustration
Are you chasing down bizarre electrical problems in your GM truck or SUV? Flickering dash lights, power windows and locks with a mind of their own, or a security system that randomly prevents your truck from starting? As a technician with over two decades in the bay, I’ve seen these exact issues hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM). This isn’t just a simple fuse or relay; it’s the central nervous system for your vehicle’s body electronics. When it fails, it can create a cascade of confusing and frustrating symptoms.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and dealer expense out of the equation. Simply provide your vehicle’s VIN during checkout, and we will program this 1999-2000 GM BCM with the latest official GM software specific to your truck. It arrives at your door ready to be installed, saving you a trip to the dealership and the high cost of programming fees. Get your truck’s essential features working reliably again.
A Technician’s Notebook: The Case of the Haunted Silverado
A 2000 Silverado 1500 rolled into my shop with a laundry list of complaints from the owner. The radio would turn on and off, the dome light would flicker while driving, and sometimes the power locks wouldn’t respond. He’d replaced the battery and checked all the fuses. Diagnostics showed a series of communication error codes (U-codes) pointing to a network issue. Instead of spending hours tracing wires, my experience pointed straight to the BCM. We swapped in a VIN-programmed module, and like magic, every single electrical gremlin vanished. This is a classic failure pattern for these modules, and a new 1999-2000 GM BCM is the definitive fix.
Is Your Truck Plagued by These Electrical Issues?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- âś” Intermittent or non-functional power windows, door locks, or mirrors.
- âś” Erratic behavior from the interior lights or dashboard illumination.
- âś” The security or anti-theft system engaging incorrectly, causing a no-start condition.
- âś” Horn honking unexpectedly or not working at all.
- âś” Inconsistent windshield wiper operation.
- âś” Communication error codes (like U0140) stored in the vehicle’s computer system.
Your Straightforward BCM Installation Guide
Installing your new BCM is a manageable job for a DIYer with basic tools. The location can vary slightly, but it’s typically found within the dashboard. Always consult a service manual for your specific model’s location.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On most of these models, it’s located under the driver’s side or center of the dashboard. You may need to remove a lower dash panel for access.
- 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 your new, pre-programmed BCM in the same location and securely re-attach the electrical connectors. You should hear a ‘click’ as they lock 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, wipers, etc.—to confirm the repair.
Important Post-Installation Information
While this 1999-2000 GM BCM is a direct-fit, plug-and-play solution, some vehicles may require a simple relearn procedure to sync all systems perfectly. Please be aware of the following possibilities:
- Airbag System Sync: In some cases, the airbag warning light may illuminate after installation. This is because the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
- Brake Pedal Position Relearn: Certain models may require a brake pedal position sensor recalibration to ensure brake lights and traction control function correctly.
Disclaimer: These procedures can vary. We always recommend consulting a factory service manual or a qualified technician for vehicle-specific guidance.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 09366801 and other interchangeable numbers like 16257125, 19153625, and 8191536250. It is guaranteed to fit the following vehicles:
- Astro Van: 2000 (LH dash)
- Blazer S10 / Jimmy S15: 1998-2000 (center dash, ID 16257125)
- Bravada: 1998 (center dash, w/ extended build date opt ZN4)
- Isuzu Hombre: 1999-2000 (LH dash)
- S10 / S15 / Sonoma Pickup: 1998-2000 (center dash, ID 16257125)
- Safari (GMC): 2000 (LH dash)
- Sierra 1500/2500 Pickup: 1999-2000 (LH dash)
- Silverado 1500/2500 Pickup: 1999-2000 (LH dash)
Frequently Asked Questions
Do I need to send my old BCM back?
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 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive this information for programming.
Is this a difficult part to install myself?
For most individuals with basic mechanical skills, this is a very manageable installation. The primary challenge is accessing the module, which is typically under the dashboard. No special tools are needed for the physical swap.
What if my airbag light is on after I install it?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag module. A repair shop with a high-level diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to turn the light off.
Will this fix my truck’s security system issue?
Yes, a faulty BCM is one of the most common causes of security system malfunctions on these GM vehicles. By programming the module to your VIN, it correctly matches your vehicle’s anti-theft system, restoring normal operation.