Are you tired of dealing with the bizarre and frustrating electrical problems in your GM truck? One minute the power windows work, the next they don’t. The security light flashes for no reason, the interior lights have a mind of their own, or your door locks are acting erratically. These aren’t just minor annoyances; they’re classic signs that the central hub of your vehicle’s body electronics—the Body Control Module (BCM)—is failing. This isn’t a part you can ignore, as it governs dozens of comfort and convenience features you use every day.
We offer a straightforward, reliable solution: a replacement Body Control Module for your 2000 GMC Sierra 2500 Pickup, professionally programmed to your truck’s specific Vehicle Identification Number (VIN). Forget about expensive towing bills and high dealership programming fees. We handle the complex part for you. Simply provide us with your VIN after purchase, and we’ll flash the module with the latest GM software updates before it even leaves our facility. This ensures perfect integration and optimal performance, right out of the box.
A Technician’s Notebook: The Case of the Haunted Sierra
I remember a 2000 Sierra 2500 rolling into my bay with a list of symptoms that sounded like something out of a ghost story. The customer said his radio would switch off, the dome light would flicker while driving, and the power locks would cycle randomly. He’d already replaced the battery and checked the main grounds. After hooking up my scan tool, I found a slew of U-codes (communication errors) between various modules. The common link? The BCM. On these GMT800 trucks, a common failure point is water intrusion from a leaking windshield seal or A-pillar grommet, which drips directly onto the BCM located on the left side of the dash. The corrosion on the board was causing intermittent shorts, creating the ‘haunting’. A VIN-programmed replacement BCM solved every single issue in one go.
Is Your Truck Showing These Symptoms?
A failing BCM can cause a wide range of confusing issues. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ The security system or anti-theft light acting up, potentially causing a no-start condition.
- ✔ Intermittent operation of the radio or instrument cluster gauges.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Inconsistent horn or wiper operation.
A Straightforward Guide to Installation
Replacing the BCM is a manageable job for a DIY enthusiast. With our pre-programmed module, you skip the hardest part. Here’s a general guide:
- Safety First: Always disconnect the negative terminal from your truck’s battery to prevent any electrical shorts.
- Locate the BCM: On most compatible full-size trucks and SUVs, the BCM is 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 Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle. If you see an airbag warning light, a professional ‘Setup SDM Primary Key’ procedure is required. A brake pedal position relearn may also be necessary for proper brake light and traction control function.
Important Note: While this is a direct-fit part, we always recommend consulting a factory service manual for instructions specific to your exact model.
Verified Vehicle Compatibility
This Body Control Module is a guaranteed fit for a wide range of General Motors vehicles. Please verify your part number (this module replaces 19208539, 9371990, 9385236) and check the list below:
- ✔ 2000 Chevrolet Silverado & GMC Sierra 1500/2500 Pickup
- ✔ 2000 Chevrolet Tahoe & GMC Yukon (exc. Denali)
- ✔ 2000 Chevrolet Suburban & GMC Yukon XL 1500/2500
- ✔ 2001 Chevrolet S10 & GMC Sonoma
- ✔ 2001 Chevrolet Blazer & GMC Jimmy
- ✔ 2001 Oldsmobile Bravada
- ✔ 2001 Chevrolet Astro & GMC Safari
Frequently Asked Questions
How does the VIN programming work?
After you complete your purchase, simply send us your 17-digit VIN. Our technicians will use it to load the correct, vehicle-specific software and the latest GM updates onto the BCM. This ensures it communicates perfectly with your truck’s other systems, saving you a trip to the dealer.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module, which saves you the time, cost, and hassle of shipping a core back to us.
Will I need a scan tool after installation?
Possibly. In many cases, the truck will start and run perfectly. However, as noted in the post-installation procedures, some vehicles may require an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ using a professional-grade scan tool to clear specific warning lights or restore full functionality.
What if my original part number is different?
This module is a direct replacement for several service numbers, including 19208539, 9371990, and 9385236. As long as your vehicle is on the compatibility list and your original module carries one of these numbers, this part will work correctly.