Restore Full Functionality to Your GM Vehicle
Are you dealing with baffling electrical problems in your 2008-2012 GMC Savana 1500 Van? Issues like power windows that won’t budge, interior lights with a mind of their own, or a security system that randomly acts up are classic signs of a failing Body Control Module (BCM). The BCM is the nerve center for your vehicle’s body electronics, and when it starts to fail, it can make your daily driver feel unreliable and frustrating. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
We offer a dependable and straightforward solution. This is a replacement Body Control Module, compatible with part number 25847588, that gets your vehicle back to factory-spec operation. The best part? Our expert Cloning Service eliminates the guesswork and extra expense. Simply provide your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specific to your Savana. It arrives at your door ready to install, saving you a costly trip to the dealership for programming.
A Technician’s Notebook: The Work Van That Wouldn’t Cooperate
A contractor brought his 2011 Savana 1500 into my bay with a list of complaints that sounded like a poltergeist had taken up residence. The radio would turn on and off, the dome light flickered, and worst of all, the power door locks were completely unresponsive—a major security issue for someone carrying expensive tools. He’d already replaced the battery and checked fuses. After connecting my scan tool, I saw a slew of U-codes, specifically a U0140 (Lost Communication With Body Control Module). This pointed directly to a classic BCM failure. Instead of a complex rewiring job, the fix was a pre-programmed BCM. Once installed, every single one of his electrical gremlins vanished. It’s a common story for these workhorses.
Is Your Vehicle Showing These Symptoms?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution for your 2008-2012 Savana 1500 Body Control Module issues:
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The security system light is illuminated, or the alarm goes off randomly.
- ✔ The radio or instrument cluster display behaves erratically.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a DIY enthusiast or a quick task for any professional mechanic. For the 2008-2012 Savana 1500, the BCM is typically located in the center dash area.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Access the Module: You will need to remove trim panels around the center dash or glove box area to gain access to the BCM. Keep track of all screws and clips.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed module in place of the old one. Securely plug in all electrical connectors, ensuring they click into place.
- Post-Installation Steps: Reassemble your dash panels and reconnect the negative battery terminal. Start the vehicle and test all functions (lights, locks, windows, etc.).
- Final Relearns (If Needed): In some cases, a relearn procedure may be necessary. If the airbag light is on, an ‘Airbag System Sync’ is required. A ‘Brake Pedal Position Relearn’ might also be needed for proper brake light and traction control function. These procedures often require a professional-grade scan tool.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles. While this listing is focused on the 2008-2012 Savana 1500 Body Control Module, it also fits the models below. Please verify your part number (this module replaces many, including 15872388, 20815898, and 25892622) and vehicle options before ordering.
- Acadia: 2007-2012
- Avalanche 1500: 2010
- Caprice: 2011-2013
- Captiva Sport: 2012
- CTS: 2008-2013
- DTS: 2006-2011
- Enclave: 2008-2012
- Equinox: 2007-2009
- Escalade, ESV, EXT: 2010
- Express Van 1500/2500/3500: 2008-2012
- G8: 2008-2009
- Hummer H2: 2008-2009
- Impala: 2006-2013
- Lucerne: 2006-2011
- Monte Carlo: 2006-2007
- Outlook: 2007-2010
- Savana Van 1500/2500/3500: 2008-2012
- SRX: 2007-2009
- STS: 2010
- Suburban 1500: 2010
- Tahoe: 2010
- Torrent: 2007-2009
- Traverse: 2009-2012
- Vue: 2008-2010
- Yukon & Yukon XL 1500: 2010
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
How does the VIN programming (Cloning Service) work?
After you complete your purchase, you will need to provide us with your vehicle’s 17-digit VIN. Our technicians use this number to access the latest official GM software for your specific vehicle and flash it onto the module before shipping. This ensures it communicates perfectly with your van’s other systems right out of the box.
Do I need to send my old BCM back?
No, a core return is not required for this service. We program a replacement module for you. Per our policy, your original module is always returned to you along with the programmed replacement unit if you send it in for the service.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a bi-directional professional diagnostic tool (scan tool) that can perform specific commands. Basic code readers cannot perform these functions. If you do not have access to such a tool, a professional mechanic will need to complete these steps for you.
Will this fix my ‘Service StabiliTrak’ or ‘Service Traction Control’ message?
In many cases, yes. The BCM is integral to the traction control and stability systems. If the BCM is failing and not communicating properly with sensors like the brake pedal position sensor, it can trigger these warnings. A new, properly functioning BCM often resolves these message alerts after any necessary relearn procedures are completed.
Is this part number 25847588 compatible with other numbers?
Yes. This BCM, service part number 25847588, is the correct replacement for a long list of previous GM part numbers, including 15872388, 20815898, 25892622, and many others listed in the product details. We ensure the software we load is correct for your specific vehicle’s original configuration.