Restore Control Over Your Truck’s Electronics
Are you chasing electrical gremlins in your 2000 GM truck or SUV? Flickering lights, intermittent power windows, a security light that won’t turn off, or even a frustrating no-start condition can all point to one culprit: a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant annoyance. It’s the central hub for your vehicle’s comfort and convenience features, and when it fails, it can create a cascade of confusing symptoms.
This isn’t just a replacement part; it’s a complete solution. We take a reliable BCM, compatible with part number 16257155, and program it with the very latest GM software updates using your vehicle’s specific VIN. This means it arrives at your door ready for installation, saving you a costly trip to the dealership for programming. Restore predictable, reliable performance to your truck’s body systems with a module that’s tailored specifically for your vehicle.
Case Study: A Tricky Diagnosis
A customer brought in their 2000 Tahoe with a classic ‘mystery’ problem. The gauges would randomly sweep, the radio would cut out, and sometimes the truck just wouldn’t start, with the security light flashing. They had already replaced the battery and checked the alternator. After hooking up my diagnostic tool, I saw a dozen communication error codes (U-codes) pointing to a network failure. Instead of chasing ghosts, I went straight to the BCM. These modules are a known weak point for electrical noise and internal solder joint failure. Swapping in a pre-programmed BCM like this one solved every single issue instantly. It’s often the root cause of what seems like multiple, unrelated failures.
Is Your GM Truck Showing These Symptoms?
- ✔ Erratic or non-functional interior and exterior lights
- ✔ Power windows, door locks, or mirrors working intermittently or not at all
- ✔ The security or anti-theft light stays on, preventing the engine from starting (Passlock issue)
- ✔ Inaccurate or dead gauges on the instrument cluster
- ✔ Communication error codes (e.g., U0140, U0155) stored in other modules
- ✔ The radio or other interior accessories turn on and off by themselves
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a confident DIYer. The key is our VIN-specific programming, which handles the most complex step for you. Always follow proper safety procedures.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the BCM: On these GM trucks and SUVs, the BCM is typically located under the driver’s side of the dashboard, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new module in the same location and securely plug in all the electrical connectors. You should hear a click as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal. Your vehicle is now ready for the final steps.
Important Post-Installation Steps
While our programming handles the heavy lifting, some vehicles require a final handshake between modules after installation. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade diagnostic tool to sync the new BCM with the airbag system. This is only necessary if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure your brake lights and traction control system function correctly. This also typically requires a diagnostic tool.
Verified Vehicle Compatibility
This module is a direct replacement for several part numbers and is guaranteed to fit the following vehicles when equipped with a BCM identified as 9377486:
- 2000 Chevrolet Suburban 1500 & 2500
- 2000 Chevrolet Tahoe
- 2000 GMC Yukon (excluding Denali models)
- 2000 GMC Yukon XL 1500 & 2500
Compatible Part Numbers: 16257155, 15136876, 09377486, 9377486
Core Policy: We do not require you to return your old part. There is no core charge associated with this purchase.
Why do you need my VIN?
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings your truck was built with, plus any available updates from GM. This ensures all your specific options (like keyless entry, power seats, etc.) work correctly right out of the box.
Is this part truly plug-and-play?
For most functions, yes. Because we pre-program it, you avoid the most difficult step. However, as noted above, some vehicles may require a simple ‘relearn’ or ‘sync’ procedure for the airbag or brake systems, which requires a separate diagnostic tool.
What does a Body Control Module do?
The BCM is the computer that controls most of your vehicle’s non-engine related electronics. This includes power windows, door locks, interior and exterior lighting, the security system, wipers, and various other comfort and convenience features.
Where is the BCM located on a 2000 Yukon or Tahoe?
You will typically find the BCM mounted under the driver’s side dashboard, near the steering column. Access usually involves removing the lower plastic dash panel.
Do I have to send my old BCM back?
No. This purchase has no core charge. You can keep your old module, which can be helpful if you ever need to reference its original part number.