Fix Your Yukon’s Electrical Gremlins for Good
If you’re dealing with a 2007-2011 GMC Yukon XL 1500 that seems to have a mind of its own—windows that won’t roll down, a security light that stays on, or an air conditioner that only works when it wants to—you’re likely facing a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and security features, a faulty BCM can cause a cascade of frustrating and seemingly unrelated issues. This isn’t just an inconvenience; it can affect your vehicle’s safety and reliability. This OEM-quality replacement Body Control Module, part number 25823558, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
A Technician’s Notebook
I had a 2008 Sierra in the shop last month with the strangest symptoms. The radio would cut out, the driver’s side power window was dead, and the airbag light was on with a B1001 code. The owner had already replaced the battery and checked fuses with no luck. After a quick scan, I suspected the BCM. A common failure point on these GM trucks isn’t always the module itself, but the main ground connection for it. After confirming the ground was clean and tight, we swapped in a VIN-programmed BCM. All the ghost issues vanished instantly. That’s why I always tell my customers: a reliable part is step one, but always check your grounds during the install to prevent a comeback.
Is Your GM Truck Showing These Symptoms?
A failing BCM doesn’t always trigger a check engine light. Instead, it manifests as a host of electrical problems. If you’re noticing any of the following, it’s time to inspect your BCM:
- ✔ The security or anti-theft system malfunctions, sometimes preventing the engine from starting.
- ✔ Power windows, door locks, or interior lights work intermittently or not at all.
- ✔ The HVAC blower motor is erratic, or the climate controls are unresponsive.
- ✔ You have an active airbag warning light, often with a Diagnostic Trouble Code (DTC) like B1001 (Option Configuration Error).
- ✔ Wipers operate randomly or won’t turn off.
- ✔ Communication errors with other modules, leading to various DTCs across the system.
Plug-and-Play Installation: Get Back on the Road Fast
One of the biggest advantages of this module is that it comes fully programmed to your vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. The installation process is straightforward for both DIYers and professional technicians.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On most compatible GM trucks and SUVs, the Body Control Module is located under the driver’s side dashboard, near the steering column. It’s a black box with several large electrical connectors.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and securely reconnect all electrical connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Note: In some cases, particularly if you had an airbag light, a ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system. A brake pedal position relearn might also be necessary for certain models.
Guaranteed Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 25823558 and is interchangeable with a wide range of other GM part numbers, including: 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591. It provides a reliable fix for the following vehicles:
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 3500 13 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 2500 10 Body Control (BCM), (under steering column)
YUKON XL 2500 09-11 Body Control (BCM); (under steering column)
ESCALADE EXT 07-09 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 08-11 Body Control (BCM); (under steering column)
TAHOE 07 Body Control (BCM); (under steering column)
YUKON 07 Body Control (BCM); (under steering column)
ESCALADE EXT 11 Body Control (BCM); (under steering column)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25835966
AVALANCHE 1500 08-09 Body Control (BCM); (under steering column)
SILVERADO 1500 PICKUP 08-11 Body Control (BCM); (under steering column)
TAHOE 09 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 10-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 2500 PICKUP 09-11 Body Control (BCM); (under steering column)
SUBURBAN 2500 07-09 Body Control (BCM); (under steering column)
YUKON 11 Body Control (BCM), (under steering column)
ESCALADE 11 Body Control (BCM); (under steering column)
ESCALADE ESV 11 Body Control (BCM); (under steering column)
SUBURBAN 1500 07-09 Body Body Control (BCM); (under steering column)
AVALANCHE 1500 07 Body Control (BCM), (under steering column)
SIERRA 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 08 Body Control (BCM), (under steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25835966
YUKON 08 Body Control (BCM), (under steering column)
YUKON 09 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 2500 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
TAHOE 08 Body Control (BCM)
YUKON XL 2500 07-08 Body Control (BCM), (under steering column)
SIERRA DENALI 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA DENALI 1500 11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
YUKON 10 Body Control (BCM); (under steering column), ID 25835966
YUKON XL 1500 07-09 Body Control (BCM), (under steering column)
YUKON XL 1500 11 Body Control (BCM); (under steering column)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
ESCALADE 07-09 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 1500 PICKUP 09 Body Control (BCM), (under steering column)
SIERRA DENALI 3500 11 Body Control (BCM); (under steering column)
SUBURBAN 2500 11 Body Control (BCM); (under steering column)
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 1500 PICKUP 08 Body Control (BCM); (under steering column)
SIERRA DENALI 08-10 Body Control (BCM); (under steering column)
SUBURBAN 1500 11 Body Control (BCM); (under steering column)
ESCALADE 10 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), under steering column)
SILVERADO 2500 PICKUP 08 Body Control (BCM), (under steering column)
SILVERADO 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
AVALANCHE 1500 11 Body Control (BCM)
TAHOE 11 Body Control (BCM); (under steering column)
Do I need to send my old BCM back?
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module without any extra fees or hassle.
Is this part difficult for a DIYer to install?
Not at all. The physical installation is very simple, typically taking less than 15 minutes with basic tools. Because it comes pre-programmed, you avoid the most complex part of the job. Just plug it in and you’re ready to go.
What does ‘VIN Programmed’ actually mean?
It means we load your vehicle’s unique 17-digit Vehicle Identification Number (VIN) and all its specific options into the module before we ship it. This ensures it communicates perfectly with your truck’s other computers, just like the original part from the factory.
My airbag light is on. Will this fix it?
This module will often resolve an airbag light caused by BCM failure (DTC B1001). However, after installation, the new BCM may need to be electronically introduced to the airbag system (SDM) using a professional scan tool to clear the light. This is a standard security procedure.
What if I still have problems after installation?
Double-check that all connectors are fully seated and that the BCM’s ground connection is clean and tight. Poor grounds are a very common cause of persistent electrical issues on these trucks. If problems continue, consult a professional technician to diagnose other potential faults in the vehicle’s wiring.