Restore Full Functionality to Your GM Van
If you’re dealing with perplexing electrical issues in your 2008-2012 GMC Savana 1500—like power windows with a mind of their own, flickering interior lights, or a security system that prevents your van from starting—you’ve likely pinpointed the culprit: a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen these modules cause some of the most frustrating and hard-to-diagnose problems. The BCM is the central hub for your vehicle’s body electronics, and when it fails, it can create a cascade of seemingly unrelated symptoms.
This isn’t just a replacement part; it’s a complete solution. We provide a high-quality BCM that is professionally programmed to your van’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. This critical step ensures seamless communication with your vehicle’s other electronic systems, eliminating the need for an expensive trip to the dealership for programming. Simply provide your VIN after purchase, and we’ll handle the rest, shipping you a part that’s ready for installation right out of the box.
Case Study: A Tricky Diagnosis
I remember a 2011 Savana work van that came into my shop. The owner, a local contractor, was at his wit’s end. The dome lights would stay on, draining the battery overnight, and the power door locks worked only intermittently. He had already replaced the battery and checked all the fuses. After connecting my scan tool, I found several communication error codes (U-codes) pointing to the BCM. Instead of ordering a blank module from the dealer and scheduling a separate programming session, we used a VIN-programmed unit like this one. The installation took less than an hour, and all the strange electrical gremlins were gone instantly. It saved the customer a day of downtime and hundreds in dealership fees.
Signs of a Failing BCM in Your GM Vehicle
A faulty BCM can manifest in numerous ways. If your vehicle is exhibiting any of the following symptoms, a failing Body Control Module is a very likely cause. These issues often start intermittently before becoming constant.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Intermittent issues with the radio or instrument cluster gauges.
- ✔ Vehicle security system issues, including no-start conditions.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
Your Straightforward BCM Installation Guide
Replacing the BCM in your Savana or other compatible GM vehicle is a manageable job for a confident DIYer. Our VIN programming makes the electronic side of things simple. Follow these general steps for a successful installation.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow the systems to fully discharge.
- Locate the BCM: On most Savana and Express vans, the BCM is located in the center dash area. On other models, it may be under the steering column or on the left-hand side of the dash. A quick search for your specific model will confirm the location.
- Remove Trim Panels: Carefully remove any plastic trim panels necessary to access the BCM. Use a non-marring pry tool to avoid scratching your interior.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and reconnect all electrical connectors. Ensure they click securely 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, radio, etc.—to confirm the repair was successful.
Important Post-Installation Note: In some cases, additional vehicle-specific relearn procedures may be necessary. For example, if your airbag light is on, an ‘Airbag System Sync’ may be required with a professional scan tool. A ‘Brake Pedal Position Relearn’ might also be needed. Always refer to a service manual for your exact vehicle if you encounter any issues.
Verified Compatibility for Your Vehicle
This Body Control Module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify that your vehicle and original part number are listed below. This module is programmed specifically for your VIN, ensuring it works with your vehicle’s options.
This module replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Fitment includes but is not limited to:
- 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 1500/2500/3500 Van (2008-2012)
- G8 (2008-2009)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Monte Carlo (2006-2007)
- Outlook (2007-2010)
- Savana 1500/2500/3500 Van (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)
Note: Fitment can depend on specific options. Matching your part number or providing your VIN is the best way to guarantee compatibility.
Frequently Asked Questions
Frequently Asked Questions
Do I need to send my original BCM to you?
No, this is not a repair service for your old part. We program a replacement BCM using the VIN you provide and ship it to you. Your original module is always returned to you along with the programmed replacement unit. We do not keep the core.
Is this really plug-and-play?
Yes, for over 95% of installations. Because we program the module to your VIN, it eliminates the need for dealer programming. In rare cases, a vehicle-specific relearn procedure (like for the brake pedal position sensor) may be needed, which can be performed with many professional-grade scan tools.
What happens if I don’t provide my VIN?
We cannot ship the module without your vehicle’s 17-digit VIN. The programming is essential for the part to function correctly in your specific vehicle. Please provide your VIN in the notes at checkout or send us a message after your purchase to avoid delays.
My airbag light came on after installation. What do I do?
This can happen occasionally. It means the new BCM needs to be synced with the airbag system’s Supplemental Deployment Module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done by a repair shop with a capable diagnostic tool.
Will this fix my specific problem?
This BCM will fix problems directly caused by a faulty Body Control Module. While the symptoms we’ve listed are common indicators, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the root cause before ordering.