Are you chasing electrical gremlins in your 2000 GM truck or SUV? Intermittent power windows, flickering interior lights, a security light that won’t turn off, or a frustrating no-start condition are all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a host of confusing and annoying problems. I’ve seen it hundreds of times in the shop—what seems like multiple unrelated issues often points directly to this single component.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and high cost of dealership programming out of the equation. Simply provide us with your vehicle’s VIN after purchase, and we will flash this BCM with the latest, most stable software directly from GM. This ensures that when it arrives, it’s a true plug-and-play fix for your 2000 Tahoe BCM, restoring function and reliability to your vehicle’s essential systems.
From the Diagnostic Bay
I remember a 2000 Yukon that came in with a complaint of the battery dying overnight. The owner had already replaced the battery and alternator. A parasitic draw test showed a significant drain, but it was intermittent. After isolating circuits, we noticed the interior courtesy lights would faintly glow long after the doors were shut. The scan tool showed a loss of communication with the BCM (DTC U1000). The internal logic of the original BCM had failed, preventing it from properly entering ‘sleep’ mode. Installing a correctly programmed BCM didn’t just fix the draw; it also resolved a slow power window issue the owner had forgotten to mention. It’s a perfect example of how one module can be the root of many problems.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ The security or anti-theft light flashing, preventing the engine from starting.
- ✔ Inconsistent horn or radio operation.
- ✔ False warning messages on the instrument cluster.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U1000, or various ‘B’ codes for body functions.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes before starting work.
- ✔ Locate the BCM: On these 2000 GM models, the BCM is typically found under the driver’s side of the dashboard, to the left of the steering column.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, remove any bolts or clips holding the module in place.
- ✔ Install the New Module: Seat your new, pre-programmed BCM in the mounting bracket and securely plug in all 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 functions: windows, locks, lights, radio, etc., to confirm the repair.
Important Post-Installation Information
While this 2000 Tahoe BCM is programmed for a simple installation, some vehicles may require additional steps. If your airbag light illuminates after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure correct brake light and traction control operation. These procedures are not always necessary but are important to be aware of. As always, consulting a factory service manual provides the most vehicle-specific guidance.
No Core Charge: You are not required to send your old BCM back to us. This saves you time and the cost of return shipping.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part numbers 16257155, 15136876, 09377486, and 9377486. It is guaranteed to fit the following vehicles:
- ✔ 2000 Chevrolet Tahoe (with ID 9377486)
- ✔ 2000 Chevrolet Suburban 1500 & 2500 (with ID 9377486)
- ✔ 2000 GMC Yukon (excluding Denali models, with ID 9377486)
- ✔ 2000 GMC Yukon XL 1500 & 2500 (with ID 9377486)
Frequently Asked Questions
Do I need to do any programming myself?
No. This BCM arrives fully programmed to your vehicle’s VIN. You just need to provide us with your VIN during checkout, and we handle all the software flashing before it ships. It’s designed to be a plug-and-play installation.
What is a core charge? Do I have one?
A core charge is a deposit you pay until you return your old part. We do not have a core charge on this item. You can keep your original module, saving you the hassle and expense of return shipping.
My airbag light is on after installing the new BCM. What do I do?
This can sometimes happen. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a professional-grade scan tool to perform a procedure called ‘Setup SDM Primary Key in BCM’. A local repair shop can typically perform this for you.
How do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard, visible through the windshield.
Will this fix my no-start problem?
If your no-start issue is caused by the factory anti-theft system (VATS/Passlock) being triggered by a faulty BCM, then yes, this part is the correct fix. The programming we perform includes matching the security data to your VIN.