Restore Full Electrical Control to Your GMC Truck
Are you chasing down frustrating electrical problems in your 2003-2006 GMC Yukon XL 2500? When systems like your power windows, door locks, interior lights, or even the HVAC start acting erratically, the root cause is often a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a dependable truck into a source of constant headaches. This module is the central command center for your vehicle’s body electronics, and when it goes, it can trigger a cascade of seemingly unrelated issues.
This replacement Body Control Module, compatible with part number 15137395, is the definitive solution. We pre-program it to your vehicle’s specific VIN before shipping, which means it arrives ready for a true plug-and-play installation. You can bypass the expensive trip to the dealership for programming. This is a reliable, cost-effective repair that gets your Yukon’s features working correctly again, from the security system to the windshield wipers. Get back the functionality and peace of mind you expect from your GMC.
A Technician’s Notebook: The Case of the Haunted Yukon
A customer brought in his ’05 Yukon XL 2500 with a laundry list of bizarre complaints. The radio would cut out, the driver’s side window wouldn’t roll down, and the airbag light was on intermittently. He had already replaced the window switch and checked fuses, but the problems persisted. On my scan tool, I found a mix of communication codes and a specific BCM internal fault, DTC B1001. Instead of shotgunning parts, we focused on the central hub. After installing a VIN-programmed 2003-2006 Yukon XL 2500 BCM, every single one of his issues vanished. It’s a classic example of how one failing module can mimic multiple separate problems, and why a correct diagnosis is key.
Is Your Yukon Exhibiting These Electrical Gremlins?
- ✔ The HVAC blower motor works intermittently or not at all.
- ✔ Power door locks or windows operate randomly or have failed completely.
- ✔ The security system acts up, preventing the vehicle from starting.
- ✔ An airbag warning light is illuminated on the dash, often with a B1001 code.
- ✔ Interior dome lights or exterior lamps stay on or won’t turn on.
- ✔ A host of communication or body-related Diagnostic Trouble Codes (DTCs) are stored.
- ✔ Wipers get stuck or activate on their own.
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting the repair. This prevents electrical shorts and helps reset the vehicle’s systems.
- ✔ Locate the BCM: On the Yukon XL 2500, the BCM is typically found under the driver’s side dashboard, near the steering column. It’s a black plastic box with several large electrical connectors.
- ✔ Remove the Old Module: Carefully unplug the wiring harness connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely plug in all the wiring harnesses. You should hear a click as they lock into place.
- ✔ Reconnect and Test: Reconnect the battery terminal. Start the vehicle and test all the functions that were previously malfunctioning—windows, locks, lights, HVAC, etc.
- ✔ Post-Install Checks: In some cases, an airbag light may remain on. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules. This is a simple step for any well-equipped shop.
Confirmed Vehicle Compatibility List
This BCM is a direct-fit replacement for a wide range of GM trucks and SUVs. While this page focuses on the 2003-2006 Yukon XL 2500 BCM, it also fits the following models. Please verify your part number or contact us with your VIN to ensure perfect compatibility.
- Chevrolet Avalanche 1500/2500 (2003-2006)
- Chevrolet Express 1500/2500/3500 Van (2004-2007)
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic)
- Chevrolet Suburban 1500/2500 (2003-2006)
- Chevrolet Tahoe (2003-2006)
- GMC Savana 1500/2500/3500 Van (2004-2007)
- GMC Sierra 1500/2500/3500 & Denali (2003-2007 Classic)
- GMC Yukon & Yukon XL 1500/2500 (2003-2006)
- Cadillac Escalade, ESV, EXT (2003-2006)
- Hummer H2 (2003-2007)
Interchangeable Part Numbers: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, 15194170.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We pre-program the module to your vehicle’s VIN before it ships. This allows for a simple installation without requiring expensive dealer tools or software.
Is there a core charge for my old part?
Absolutely not. There is no core charge, so you can keep your old module without any hassle or need to return it.
Why is my airbag light still on after installation?
This is normal for some vehicles. The new BCM needs to be electronically ‘introduced’ to the airbag system’s Sensing and Diagnostic Module (SDM). A professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure, which syncs the two modules and turns off the light.
What tools do I need for the installation?
For most models, you’ll only need basic hand tools, such as a socket set or nut driver to access and remove the BCM. The installation itself is plug-and-play.
Will this fix a no-start condition?
Yes, a failing BCM can often cause a no-start issue by disabling the PassLock or PassKey security system. Replacing it with a properly programmed module will restore the security handshake and allow the vehicle to start.