Is Your Savana 3500 Plagued by Electrical Gremlins?
If you’re dealing with bizarre electrical issues in your 2008–2012 GMC Savana 3500—like power locks with a mind of their own, interior lights that won’t turn off, a security light that prevents starting, or erratic instrument cluster behavior—a failing Body Control Module (BCM) is the most likely culprit. As a technician, I’ve seen these work vans come into the shop with symptoms that leave owners scratching their heads. The BCM is the central nervous system for your van’s comfort and security features, and when it goes, it can make your vehicle unreliable and frustrating to operate.
The Direct-Fit, Programmed Solution
Forget expensive dealership visits and the hassle of post-installation programming. This Body Control Module is the straightforward solution you need. We professionally program the module to your van’s exact Vehicle Identification Number (VIN) before we ship it. This means it arrives loaded with the latest GM software updates, ready for a plug-and-play installation. This isn’t just a replacement part; it’s a fully integrated solution designed to restore your vehicle’s factory functionality perfectly.
Expert Pro Tip: Check for Water Intrusion
In my 20+ years of experience, the number one killer of BCMs in Savana and Express vans is water damage. Before installing your new module, I strongly recommend inspecting the windshield seal and the cowl area for any signs of leaks. A small, undetected leak can allow water to drip directly onto the BCM’s connectors or housing, causing corrosion and eventual failure. Taking 15 minutes to inspect and seal any potential entry points can save you from having to do this job again in the future.
This Programmed BCM Will Resolve Common Failures:
- ✔ Intermittent or non-working power windows, locks, and mirrors
- ✔ Security or anti-theft light staying on, causing a no-start condition
- ✔ Interior dome lights or dashboard lights staying on and draining the battery
- ✔ Communication errors with other modules (DTC U-codes)
- ✔ Unresponsive key fob or remote entry functions
- ✔ Erratic behavior of wipers or turn signals
Simple Installation for Your 2008-2012 Savana 3500 BCM
Replacing the BCM on your Savana is a manageable job for a DIYer with basic tools. It’s typically located in the center dash area. Follow these steps for a smooth installation:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Access the Module: Carefully remove the necessary dash trim panels to gain access to the BCM. On most Savana vans, this involves removing sections of the lower and center dash.
- 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 old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
- Reassemble and Reconnect: Reinstall the dash panels and reconnect the negative battery terminal.
Critical Post-Installation Steps: Don’t Skip These!
After your new BCM is installed, two final procedures may be required to ensure full functionality and safety. This is a crucial step that many overlook. Your new BCM needs to be properly introduced to the vehicle’s other safety systems.
- Airbag System Handshake: You must perform the ‘Setup SDM Primary Key in BCM’ procedure using a compatible bi-directional scan tool. This syncs the BCM with the airbag module (SDM). If this step is skipped, the airbag warning light will remain illuminated on your dash.
- Brake Pedal Position Sensor Relearn: Some vehicles require a brake pedal position sensor relearn after BCM replacement. This ensures the brake lights and stability control system receive accurate data from the pedal. This is also performed with a professional diagnostic tool.
Guaranteed Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Simply provide your VIN after purchase, and we’ll handle the rest. This unit is compatible with the following part numbers:
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
This BCM also fits a vast array of other GM models, including the Express Van, Tahoe, Suburban, Escalade, Acadia, Impala, and more, ensuring broad compatibility and proven performance across the GM platform.