Restore Full Control Over Your Truck’s Electronics
Are you dealing with baffling electrical problems in your GMC Sierra or other GM truck? One moment the A/C works, the next it doesn’t. The power windows have a mind of their own, or a persistent airbag light refuses to go away. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of issues. This replacement module, part number 15284816, is the reliable, cost-effective solution to get your truck back in order without a costly trip to the dealership.
Our unique Cloning Service makes this repair a breeze. Simply send us your original BCM, and we’ll transfer all of its critical data—including VIN, mileage, and key programming—to this replacement unit. The module you receive back will be a true plug-and-play component, perfectly synced to your vehicle’s specific configuration. This process eliminates the need for expensive and time-consuming dealer programming, making it an ideal fix for both seasoned mechanics and DIY-savvy truck owners.
Is Your Sierra Experiencing These Electrical Gremlins?
- ✔ Intermittent or completely dead HVAC and climate controls.
- ✔ Power windows, door locks, or interior lights not working correctly.
- ✔ An airbag warning light that won’t turn off, often with DTC B1001.
- ✔ Security system malfunctions, causing no-start or stalling conditions.
- ✔ Erratic wiper operation or dashboard lights flickering.
- ✔ Communication errors with other modules, triggering various U-codes.
From the Diagnostic Bay: The Ghost in the Machine
I once had a 2009 Sierra 2500 in the shop that was driving its owner crazy. The radio would cut out, the dash would flicker, and sometimes it wouldn’t start. He had already replaced the battery and alternator. After hooking up my scanner, I saw a dozen intermittent communication codes. The symptoms pointed to the 2007-2011 Sierra 2500 BCM, but before ordering a part, I did a thorough check of the main ground points. Sure enough, the primary BCM ground strap under the dash was corroded and loose. We cleaned the connection, tightened it, and half the problems vanished. However, the internal BCM circuits were already damaged from the poor grounding. We replaced the BCM, and the truck has been perfect since. It’s a powerful reminder: when you replace a BCM, always inspect the grounds first to ensure a lasting repair.
Your Straightforward BCM Installation Guide
Installing your cloned BCM is a simple process that typically takes less than 15 minutes. The module is located under the driver’s side dashboard, near the steering column.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the BCM: Remove the lower dash panel beneath the steering wheel to access the module. It’s a black box with several large multi-pin connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, cloned BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reinstall the lower dash panel and reconnect the negative battery terminal. Start the vehicle and test all functions: lights, windows, locks, HVAC, and wipers to confirm the repair.
- Post-Install Checks: In some cases, an airbag light may persist. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function. A ‘Brake Pedal Position Relearn’ may also be needed depending on your exact model.
Verified Fitment for Your GM Truck or SUV
This BCM is a direct replacement for part number 15284816 and is interchangeable with a wide range of other GM part numbers, including 25844480, 25835966, 15263363, 15943678, 20939137, and more. It fits a broad selection of GM vehicles, including:
- GMC Sierra 1500/2500/3500 & Denali (2007-2013)
- Chevrolet Silverado 1500/2500/3500 (2007-2013)
- GMC Yukon & Yukon XL (2007-2011)
- Chevrolet Tahoe & Suburban (2007-2011)
- Cadillac Escalade, ESV, EXT (2007-2011)
- Chevrolet Avalanche 1500 (2007-2011)
Please verify your specific model and year in the fitment chart or contact us with your VIN to ensure perfect compatibility.
Frequently Asked Questions
How does the Cloning Service work?
After you place your order, you will receive instructions on how to send us your original BCM. We then professionally transfer its data to the new unit, so it arrives at your door ready for plug-and-play installation, with no further programming needed.
Do I need to get this programmed by a dealer?
No. Our cloning service completely eliminates the need for dealer programming, saving you hundreds of dollars and significant hassle.
Is this a reliable fix for my 2007-2011 Sierra 2500 BCM?
Absolutely. This module is built to meet or exceed OEM specifications and, when paired with our professional cloning service, provides a durable and dependable solution to common GM electrical failures.
What if my airbag light is on after installation?
If the airbag light remains on, it typically means the BCM and the airbag’s Sensing and Diagnostic Module (SDM) need to be electronically re-synced. This is done with a pro-level scan tool using the ‘Setup SDM Primary Key in BCM’ function.
Is there a core charge or do I get my old part back?
There is no core charge. We always return your original module along with the newly programmed replacement unit.