Fix Your GM Truck’s Electrical Headaches for Good
If you’re dealing with a frustrating mix of electrical problems in your 2007-2011 GMC Yukon or a similar GM truck, you know how maddening it can be. One day the A/C works, the next it doesn’t. Your power windows have a mind of their own, and a persistent airbag light might be staring you in the face. Before you start replacing individual switches and motors, the real culprit is often the Body Control Module (BCM). This module is the central command for your vehicle’s body electronics, and when it fails, it creates chaos. This VIN-programmed BCM, part number 15901388, is the direct, reliable solution to restore order and get your truck operating flawlessly again.
A Technician’s Notebook: The Case of the Haunted SUV
I’ll never forget a 2009 Yukon that rolled into my bay. The owner was at his wit’s end. He said, “The radio presets disappear, the security light flashes randomly causing no-starts, and the driver’s side door lock works only when it wants to.” He’d already replaced the battery and checked fuses. My first step was a full diagnostic scan, which revealed a slew of communication error codes across multiple systems. This is a classic sign. Instead of chasing three separate problems, my experience pointed directly to a single point of failure: a faulty BCM. A failing BCM can’t properly route messages, causing these seemingly unrelated issues. We installed a pre-programmed module, and in under an hour, every single symptom was gone. This is why a quality 2007-2011 Yukon BCM is one of the most effective repairs for these vehicles.
Is Your Yukon Suffering from These Electrical Gremlins?
A failing BCM doesn’t usually die silently. It will give you plenty of warning signs. If you’re noticing any of the following, it’s time to consider a replacement:
- ✔ Intermittent or non-functional HVAC and climate controls.
- ✔ Power windows, door locks, or mirrors that work sporadically or not at all.
- ✔ An airbag warning light that won’t turn off, often with a DTC B1001 stored.
- ✔ Erratic interior or exterior lighting, including flickering or dead lights.
- ✔ Vehicle security system issues, leading to stalling or no-start conditions.
- ✔ Unexplained battery drain or communication DTCs (U-codes).
Your 5-Minute BCM Installation Guide
One of the best parts of this repair is its simplicity. You don’t need a full toolbox or a lift. For most DIYers, this is a quick and satisfying job.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On most GM trucks and SUVs of this era, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black box with several large multi-pin connectors.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs, so be gentle. Unbolt or unclip the old module and set it aside. Mount the new BCM in its place.
- Reconnect and Test: Firmly plug the connectors into your new BCM. Reconnect the battery terminal. Start the vehicle and test all the functions that were previously malfunctioning—lights, locks, windows, HVAC, etc.
Important Post-Installation Note: Our VIN programming handles the majority of the setup. However, in some cases, if the airbag light remains on, a technician with a high-level scan tool will need to perform a quick “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system. A brake pedal position relearn may also be required for certain models. And the best part? There’s absolutely no core charge—you can keep your old part.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 15901388 and other interchangeable numbers. It is guaranteed to fit the following vehicles:
Escalade (2007-2011)
Escalade ESV (2007-2011)
Escalade EXT (2007-2011)
Chevrolet:
Avalanche 1500 (2007-2011)
Silverado 1500 (2007-2011)
Silverado 2500/3500 (2007-2011)
Suburban 1500/2500 (2007-2011)
Tahoe (2007-2011)
Sierra 1500 (2007-2011)
Sierra 2500/3500 (2007-2011)
Sierra Denali (2007-2011)
Yukon (2007-2011)
Yukon XL 1500/2500 (2007-2011)
This part is also a direct replacement for the following part numbers: 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 20939137, 20939138, 22860591.
Frequently Asked Questions about the 2007-2011 Yukon BCM
What exactly does the Body Control Module do?
What exactly does the Body Control Module do?
The BCM acts as the central computer for your vehicle’s comfort and convenience features. It controls non-engine related functions like your lights, power windows and locks, wipers, security system, and the HVAC (heating and air conditioning) system.
Is this BCM really plug-and-play?
Yes! We program the module to your vehicle’s specific VIN before shipping. This means you can install it yourself without needing an expensive trip to the dealership for programming. It’s designed to work right out of the box.
My airbag light is on after installing the new BCM. What should I do?
This is a known security handshake that can occur. The BCM needs to be synced with the Sensing and Diagnostic Module (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to clear the light.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your old module without any penalty, making the process simpler and more convenient for you.
How can I be sure the BCM is my problem?
While the symptoms listed are strong indicators, the best way to be certain is with a professional diagnostic scan. A faulty BCM often triggers multiple communication codes (U-codes) and error codes related to body systems (B-codes), which confirms it’s the source of the widespread issues.