Tired of Your Truck’s Electrical Gremlins?
If you’re dealing with bizarre electrical issues in your 2000 GM truck, you’re not alone. One day the power windows work, the next they don’t. The security light flashes randomly, or the interior lights decide to stay on, draining your battery overnight. These frustrating problems often point to one component: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause chaos. This isn’t just an inconvenience; it can affect vehicle security and the proper function of safety features like exterior lighting.
This replacement module, programmed specifically for your vehicle via our expert cloning service, is the definitive solution. We take the essential data from your original BCM and transfer it directly to this replacement unit. The result? A true plug-and-play module that restores full functionality without a costly and time-consuming trip to the dealership for programming. Getting your truck back to normal has never been simpler.
Case Study: The Ghost in the Machine
A customer brought in his 2000 Yukon XL, completely frustrated. His main complaint was a dead battery every morning. He’d already replaced the battery and alternator. After a quick check, I noticed the interior courtesy lights were faintly glowing even with the truck off and doors closed. This is a classic symptom I’ve seen hundreds of times, pointing directly to a failing BCM. The internal relays stick, creating a parasitic draw that drains the battery. After we performed a cloning service on a replacement 2000 Tahoe BCM, he installed it in the parking lot. The lights functioned perfectly, the parasitic draw was gone, and he called a week later to say his truck was finally reliable again. It’s often these simple-to-fix, but hard-to-diagnose, issues that cause the biggest headaches.
Common Signs of a Failing BCM
If your truck is exhibiting any of these behaviors, a faulty BCM is the most likely cause. A failure here can sometimes trigger communication error codes like U0140 if the module stops talking to the rest of the vehicle’s network.
- ✔ Erratic power window or door lock operation.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ The security system light is on, or the vehicle won’t start (anti-theft).
- ✔ Horn honks randomly or doesn’t work at all.
- ✔ Wipers behaving unpredictably.
- ✔ False warnings on the instrument cluster.
A Straightforward Guide to Installation
Installing your cloned 2000 Tahoe BCM is a manageable job for a DIYer. The module is typically located under the driver’s side of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On these GM trucks, the BCM is found under the driver’s side dash, 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. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount the replacement BCM in the same location and securely reconnect all electrical harnesses. You should hear a click as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- Test All Functions: Start the vehicle and test all the components controlled by the BCM: power windows, locks, interior/exterior lights, wipers, and horn to confirm the repair.
Important Post-Installation Steps
Our cloning service makes this a near plug-and-play repair. However, in some cases, your vehicle may require one of the following procedures to ensure all systems communicate correctly with the new 2000 Tahoe BCM.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a simple sync procedure called ‘Setup SDM Primary Key in BCM’ is needed. This requires a professional-grade scan tool and ensures the airbag system and BCM are properly paired.
- Brake Pedal Position Relearn: Some models may require this relearn to ensure the brake lights and traction control system function as intended. This can also be performed with a capable diagnostic tool.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any step.
Verified Vehicle Compatibility
This module is a direct-fit replacement for the following vehicles equipped with part number 09377486. It is also an exact replacement for part numbers 16257155 and 15136876.
- ✔ 2000 Chevrolet Tahoe (LH dash)
- ✔ 2000 Chevrolet Suburban 1500 (LH dash)
- ✔ 2000 Chevrolet Suburban 2500 (LH dash)
- ✔ 2000 GMC Yukon (exc. Denali) (LH dash)
- ✔ 2000 GMC Yukon XL 1500 (LH dash)
- ✔ 2000 GMC Yukon XL 2500 (LH dash)
Frequently Asked Questions
How does the cloning service work?
After you place your order, you’ll ship your original BCM to us. We use specialized equipment to extract the vehicle-specific data (including VIN, mileage, and key information) and flash it onto the replacement module. We then ship both your original module and the ready-to-install replacement back to you.
Do I need to provide my VIN?
Yes, but more importantly, we need your original module. The cloning process copies all necessary data directly from your old part, which is a more comprehensive method than just programming from a VIN.
Is this a difficult part to replace myself?
For someone with basic mechanical skills, it’s very manageable. The BCM is usually held in by a few bolts or clips under the driver’s side dash. The main challenge is working in a tight space. Our cloning service eliminates the most difficult part: the computer programming.
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’s computer (SDM). A repair shop with a high-end scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Will I get my old BCM back?
Absolutely. We always return your original module along with the fully programmed replacement unit. We do not keep customer cores.