Is your GMC Yukon XL experiencing bizarre electrical issues? You’re not alone.
The Body Control Module (BCM) is the central command center for your vehicle’s body electronics. When it begins to fail, it can cause a cascade of frustrating and seemingly unrelated problems. From power windows that won’t budge to an HVAC system with a mind of its own, a faulty BCM can make your reliable SUV feel unpredictable. This genuine OEM-quality replacement, part number 20939137, is the definitive solution to restore order and functionality to your vehicle.
Specifically designed for a wide range of 2007-2013 GM trucks and SUVs, this module arrives pre-programmed to your vehicle’s specific VIN. This crucial step ensures seamless integration with your existing systems, eliminating the need for expensive and time-consuming dealership programming. It’s a true plug-and-play fix that gets you back on the road with confidence.
From the Diagnostic Bay
We had a 2010 Yukon XL 1500 come in with the strangest set of symptoms. The radio would cut out, the driver’s side power window worked intermittently, and the security light would flash randomly, sometimes preventing the truck from starting. The owner had already replaced the window switch and checked the battery. After a quick scan, we saw multiple communication codes pointing back to the BCM. Instead of chasing individual component ghosts, we installed a VIN-programmed Yukon XL Body Module. The new BCM immediately resolved all the issues, saving the customer hundreds in further diagnostic fees and parts.
Common Symptoms of a Failing Yukon XL Body Module
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors failing to operate correctly.
- ✔ HVAC controls not responding or the blower motor working intermittently.
- ✔ The security system engaging randomly, causing no-start conditions.
- ✔ An active airbag warning light, often with DTC B1001.
- ✔ Unexplained battery drain while the vehicle is off.
- ✔ Communication errors with other vehicle modules.
Replacing your failing unit with this part not only fixes current problems but also prevents future electrical headaches. Built to strict OEM standards and backed by a one-year warranty, it ensures long-lasting reliability. Installation is straightforward for a DIYer or professional, typically located under the driver’s side dash. While most installations are simple, be aware that in some cases, an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ may be necessary, which can be performed with a professional-grade scan tool.
Frequently Asked Questions
What does a BCM do on a 2007-2011 GMC Yukon XL?
The BCM acts as the main computer for your vehicle’s body and cabin electronics. It controls functions like power windows, door locks, the security system, interior/exterior lighting, wipers, and the HVAC system.
Will I need to have this module programmed by a dealer?
No. This module is sold VIN-programmed. You provide us with your vehicle’s VIN during checkout, and we program the module so it’s ready for immediate installation right out of the box.
Is this part difficult to install?
The BCM is typically located under the driver’s side dashboard and is held in by a few clips or bolts. The physical replacement is simple and usually takes less than 30 minutes. However, some vehicles may require a post-installation procedure like an airbag system sync if the warning light appears.
What if my airbag light stays on after installing the new BCM?
If the airbag light is on, it means the new BCM needs to be synced with the vehicle’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure.
Is this part interchangeable with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 25844480, 25835966, 15943678, 20939138, and 22860591, among others. It is compatible with a wide range of GM trucks and SUVs from 2007-2013.