Are you chasing electrical gremlins in your GM truck or SUV? Flickering lights, power windows with a mind of their own, or a security light that won’t turn off are more than just annoyances—they’re 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 cascade of frustrating and unpredictable problems. This module is the definitive, hassle-free solution to restore order and reliability to your vehicle.
We take the guesswork and dealership expense out of the equation. Unlike a generic part from a salvage yard or parts store, this BCM arrives at your door pre-programmed with the latest GM software, specifically matched to your vehicle’s VIN. This means no expensive towing, no waiting for dealership appointments, and no need for specialized programming tools. It’s the direct-fit, ready-to-install fix you’ve been looking for to get your truck’s features working correctly again.
From the Diagnostic Bay
I remember a 2002 Sierra 2500 that came into my shop with a truly baffling set of symptoms. The owner said his dome lights would randomly stay on, draining the battery overnight, and his power door locks worked intermittently. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw no communication with the BCM. These early 2000s GM BCMs are notorious for internal solder joint failures. We swapped in a VIN-programmed module just like this one, and in under 30 minutes, every single electrical issue was resolved. It’s a common failure I’ve diagnosed hundreds of times, and a quality programmed module is always the right fix.
Common Signs of a Failing GM BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft light stays illuminated, potentially causing a no-start condition.
- ✔ Horn activating unexpectedly or not working when pressed.
- ✔ Dashboard gauges behaving erratically or not functioning.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U-codes (e.g., U0140).
A Straightforward Guide to Installation
Replacing the 2002 Yukon XL 1500 BCM is a manageable job for a DIY enthusiast. The key is our VIN programming, which handles the complex part for you.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most trucks and SUVs (Yukon, Tahoe, Silverado, Sierra), the BCM is located under the driver’s side of the dashboard, near the steering column. On vans (Astro, Safari), it’s typically behind the center dash panel.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Remove any mounting screws or clips holding the old module in place and swap it with your new, pre-programmed unit.
- Reconnect and Test: Secure the new BCM, plug in all the connectors firmly, and reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, etc.
Important Post-Installation Note: In some cases, additional vehicle-specific relearn procedures may be necessary. If the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A Brake Pedal Position relearn might also be required for proper brake light and traction control operation. Always consult a service manual for your specific model if you are unsure.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following vehicles:
- Avalanche 1500 (2002)
- Astro Van (2002-2005)
- Blazer S10 / Jimmy S15 (2002-2005)
- Escalade (2002)
- S10 / S15 / Sonoma Pickup (2002-2004)
- Safari Van (2002-2005)
- Sierra 1500, 2500, 3500 & Denali (2002)
- Silverado 1500, 2500, 3500 (2002)
- Suburban 1500, 2500 (2002)
- Tahoe (2002)
- Yukon (2002)
- Yukon XL 1500, 2500 (2002)
Frequently Asked Questions
How does the VIN programming process work?
It’s simple. After you complete your purchase, we will contact you to request your vehicle’s 17-digit VIN. Our technicians then use this VIN to load the latest GM-certified software onto the BCM, ensuring it’s perfectly matched to your vehicle’s specific options and configuration before we ship it.
Is this BCM truly plug-and-play?
Yes, for the most part. Because we pre-program it, you can avoid a trip to the dealer for software flashing. However, as with any BCM replacement on these vehicles, you may need to perform a simple security relearn or have a technician perform a brake pedal or airbag sync if warning lights appear.
Do I need to return my old BCM?
No. We do not require you to send back your original module. There is absolutely no core charge, saving you time and the cost of return shipping.
Will this fix a parasitic battery drain?
A faulty BCM is a very common cause of parasitic battery drain in these GM models, often because it fails to let other modules go to ‘sleep’. While this part often corrects the issue, a proper diagnosis is the only way to be 100% certain the BCM is the source of the drain.
What if my part number isn’t listed but my vehicle is?
This module covers a wide range of interchangeable part numbers including 15063578, 15081796, 15095334, and 19208537. As long as your vehicle model and year are on our compatibility list, this VIN-programmed BCM will function correctly as a replacement.