Are you tired of chasing electrical gremlins in your GMC Yukon or other GM truck? Flickering lights, a dead HVAC system, or power windows with a mind of their own are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated problems. This OEM-quality replacement, part number 25790508, is the definitive solution to restore order and reliability to your vehicle.
We take the guesswork and dealer expense out of the equation. Each module is expertly programmed to your vehicle’s specific VIN before shipping. This means it arrives ready for a true plug-and-play installation, instantly communicating with your truck’s other systems without requiring a costly trip to a dealership for programming. It’s the most efficient way to get your truck back on the road and running like new.
Is Your Yukon Exhibiting These Electrical Issues?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, a new module is likely the fix you need:
- ✔ Unresponsive or intermittent HVAC and climate controls.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Erratic power accessories, such as door locks that don’t work, windows that won’t go up or down, or interior/exterior lights acting strangely.
- ✔ Malfunctions with the vehicle’s security system, leading to no-start conditions or random stalling.
- ✔ Poor ground signals that can cause misfires or other confusing diagnostic codes.
A Technician’s Notebook: The BCM Ground-Out
I once had a 2009 Sierra in the shop with a persistent, random misfire and flickering dash lights. The owner had already replaced the alternator and battery, suspecting a charging issue. We checked all the main engine and chassis grounds—they were perfect. After hours of diagnostics, we traced the issue back to an internal failure in the BCM that was corrupting the data network. A new, programmed 2007-2011 Yukon BCM equivalent solved not only the misfire but also a faulty passenger window the owner had forgotten to mention. It’s a prime example of how this single module can be the root of many problems.
Your 5-Minute Path to a Fully Functional Yukon
Installation is a straightforward process that most DIYers can complete in their driveway with basic tools. No complex wiring is required.
- 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 dashboard, near the steering column.
- Remove and Replace: Carefully disconnect the electrical connectors from the old module. Unbolt or unclip it from its mounting bracket and swap in the new module.
- Reconnect and Test: Securely plug the connectors into the new BCM, reconnect the battery terminal, and start the vehicle. Test all functions like lights, locks, and windows to confirm the repair.
- Post-Install Check: In some cases, if the airbag light remains on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ function. This re-syncs the airbag system.
Verified Compatibility for Your GM Truck or SUV
This module is a direct replacement for part number 25790508 and is interchangeable with many other part numbers, ensuring wide coverage across the GM family. It fits a variety of models, including:
GMC Sierra 1500/2500/3500, Sierra Denali
Chevrolet Suburban 1500/2500, Tahoe
GMC Yukon, Yukon XL, Yukon Denali
Cadillac Escalade, ESV, EXT
(Covering model years primarily from 2007-2013. Always verify your part number.)
Frequently Asked Questions about the 2007-2011 Yukon BCM
Frequently Asked Questions
Does this BCM need to be programmed by a dealer?
No. We program the module to your vehicle’s VIN before it ships. It arrives ready for installation, saving you time and money on dealer programming fees.
What do I do if my airbag light is still on after installation?
This is a known GM security procedure. You will need a professional-grade scan tool to perform the “Setup SDM Primary Key in BCM” function. This syncs the new BCM with your vehicle’s existing airbag module (SDM) and will turn off the light.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module without any hassle or need to return it.
Where is the BCM located on my 2008 GMC Yukon?
The Body Control Module is typically found under the driver-side dashboard, to the left of the steering column. It’s a black box with several large electrical connectors.
Will this fix my intermittent HVAC blower and radio controls?
Yes, these are classic symptoms of a failing BCM in these GM trucks. This module directly controls those functions, and replacement is the common and effective repair.
What part numbers does this module replace?
This module is a direct replacement for 25790508 and is also interchangeable with 25844480, 25835966, 20939137, 22860591, and many others, ensuring broad compatibility.