Restore Full Functionality to Your GM Truck or SUV
If you’re dealing with baffling electrical issues in your 2000 GMC Yukon or a similar GM vehicle, you know the frustration. Power windows that won’t budge, door locks with a mind of their own, gauges going haywire, or a security light that prevents your truck from starting—these are all classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s body electronics, a faulty BCM can turn a reliable truck into a source of daily headaches. This isn’t just an inconvenience; it can affect vehicle security and safety.
This is a direct-replacement Body Control Module, a reliable solution for part number 09371990 and other compatible service numbers. The best part? We handle the programming for you. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the latest GM software specifically for your truck. This means you can skip the expensive trip to the dealership for programming. You get a component that is truly plug-and-play, designed to restore the functions you depend on every day. Get your truck back to operating the way it was meant to with this straightforward, cost-effective fix.
A Technician’s Notebook: The Intermittent No-Start Nightmare
I once had a 2000 Silverado 1500 in my bay that was driving its owner crazy. It would randomly refuse to start, with the ‘Security’ light flashing on the dash. He had already replaced the battery and the ignition switch based on advice from forums, but the problem persisted. When I connected my scan tool, I found communication loss codes with the BCM (U1000). Instead of a steady fault, the module would just drop offline intermittently. This erratic behavior was also causing his interior lights to flicker and the radio to reset. We installed one of these pre-programmed BCMs, and the truck fired up on the first try. The electrical gremlins were gone for good. It’s a perfect example of how a failing 2000 Yukon BCM or its equivalent can create a cascade of confusing symptoms.
Is Your GM Truck Showing These Symptoms?
- ✔ Power windows, mirrors, or door locks operating intermittently or not at all.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Gauges on the instrument cluster behaving erratically or not working.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U-series codes (e.g., U1000, U0140).
- ✔ Horn or alarm system activating randomly.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most compatible models like the Tahoe, Yukon, and Silverado, the BCM is located 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 mounting bolts or clips holding the module in place.
- ✔ Install the New Module: Mount your new, pre-programmed BCM in the same location. Firmly reconnect all the electrical connectors, ensuring they click into place.
- ✔ Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- ✔ Perform Final Checks: Start the vehicle and test all body functions: windows, locks, lights, wipers, and gauges. Note the post-installation procedures below.
Important Post-Installation Steps
While this 2000 Yukon BCM is delivered ready for installation, some vehicles may require a final sync procedure for specific systems. This is normal and ensures all components communicate correctly.
- 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 certain models, a brake pedal position sensor relearn might be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
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 for the following vehicles and service numbers. Please match your service ID (found on the original module’s sticker) or vehicle model to ensure compatibility. Compatible Service IDs: 19208539, 9371990, 9385236.
- 2000 Chevrolet Silverado & GMC Sierra 1500/2500 (ID 9371990 or 9385236)
- 2000 Chevrolet Tahoe & GMC Yukon (exc. Denali) (ID 9385236)
- 2000 Chevrolet Suburban & GMC Yukon XL 1500/2500 (ID 9385236)
- 2001 Chevrolet Blazer S10 & GMC Jimmy S15 (ID 9385236)
- 2001 Chevrolet S10 & GMC Sonoma (Center Dash Mount)
- 2001 Oldsmobile Bravada (Center Dash Mount)
- 2001 Chevrolet Astro & GMC Safari (LH Dash)
Frequently Asked Questions
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the module with the correct software and vehicle-specific options from GM, ensuring it works seamlessly with your truck.
Is this a difficult part to replace myself?
For someone with basic mechanical skills, the replacement is very manageable. The BCM is typically accessible under the dashboard. The most important part is that our pre-programming saves you the difficult step of dealer-level software flashing.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional scan tool. Many independent repair shops have this equipment if you are unable to perform the procedures yourself.
Will this fix my ‘Security’ light and no-start problem?
A faulty BCM is one of the most common causes of a persistent ‘Security’ light and related no-start conditions on these GM vehicles. Replacing it with this pre-programmed 2000 Yukon BCM is a very effective solution for that specific issue.