Is Your GMC Yukon Experiencing Strange Electrical Problems?
If your 2007-2011 GMC Yukon is acting possessed—with flickering lights, unresponsive power windows, erratic door locks, or a climate control system with a mind of its own—you’re likely dealing with a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues. Don’t let these electrical gremlins sideline your SUV. This genuine GM-quality Body Control Module, part number 25971917, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
Diagnosing a Failing Yukon Body Control Module
The BCM manages a wide array of functions, so its failure can manifest in many ways. If you’re experiencing several of the issues below, your BCM is the most likely culprit. This module is the direct replacement you need to restore full functionality and reliability to your vehicle.
Common Symptoms of BCM Failure
- ✔ Power Accessory Malfunctions: Power windows, door locks, or mirrors that work intermittently or not at all.
- ✔ Lighting Issues: Interior or exterior lights staying on, not turning on, or flickering without reason.
- ✔ HVAC Problems: Inoperative climate controls, blower motor stuck on one speed, or failure to switch between modes.
- ✔ Security System Faults: The factory alarm going off randomly, or a no-start condition due to the anti-theft system not recognizing your key.
- ✔ Warning Lights: An illuminated airbag light, often accompanied by DTC B1001, indicating a communication failure between the BCM and the SDM (Sensing and Diagnostic Module).
- ✔ Erratic Wipers: Windshield wipers that activate on their own or won’t turn off.
The Plug-and-Play Solution: VIN Programming Included
Replacing a BCM used to mean a mandatory trip to the dealership for expensive programming. We’ve eliminated that step. Simply provide your vehicle’s VIN during checkout, and our technicians will program this module with the latest GM software specific to your Yukon’s configuration. This ensures that all systems communicate correctly right out of the box. No special tools, no dealer appointments—just a straightforward installation to get you back on the road.
This module is a direct replacement for a wide range of GM trucks and SUVs from this era, and is interchangeable with part numbers 25835966, 15263363, 15943678, 25790508, 25844479, 25971916, 20939137, and 22860591, among others.
Installation and Post-Install Procedures
The BCM is typically located under the driver’s side dashboard, near the steering column. Installation involves disconnecting the negative battery terminal, removing a few trim panels, and swapping the electrical connectors from the old module to the new one. The physical swap takes only a few minutes.
Important Note on Airbag System Sync: In some cases, after installation, the airbag warning light may illuminate. This is because the new BCM needs to be electronically ‘introduced’ to the vehicle’s airbag system. A procedure called “Setup SDM Primary Key in BCM” must be performed using a professional-grade scan tool. This syncs the modules and resolves the warning light. Additionally, a Brake Pedal Position Relearn may be required to ensure proper brake light and stability control function.
Frequently Asked Questions
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your old module, eliminating the hassle and expense of return shipping.
Is this a brand new part?
This is a top-quality, OEM-grade component that has been thoroughly inspected and programmed to meet or exceed original factory specifications, ensuring reliable performance. It comes with a one-year warranty.
What happens if I install it and the airbag light comes on?
If the airbag light is on after installation, the vehicle requires an ‘SDM Key Relearn’ procedure. This must be done with a high-level diagnostic scan tool (most basic code readers cannot perform this function) to sync the new BCM with the airbag system.
How do I know for sure my BCM is the problem?
The best way to confirm a faulty BCM is through a professional diagnosis with a scan tool that can communicate with the module. However, if your vehicle is exhibiting multiple symptoms from the list above (e.g., window, lock, and HVAC issues simultaneously), the BCM is the most probable cause.
Will this fix a no-start security issue?
Yes, a failing BCM is a common cause of anti-theft system problems. Because this module comes programmed to your VIN, it will correctly recognize your vehicle’s keys and allow the engine to start and run properly.