Restore Your Van’s Electrical Functions with a Reliable BCM
Is your 2008-2012 GMC Savana 3500 van experiencing bizarre electrical issues? From flickering lights and malfunctioning power windows to a security system that won’t cooperate, a failing Body Control Module (BCM) can turn your reliable workhorse into a source of daily frustration. The BCM is the central command for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing problems. This replacement BCM is the direct, dependable solution to get your van’s accessories and security features working correctly again.
We make the repair process simple. Unlike going to a dealership, which involves costly programming fees and appointments, we handle the programming for you before we ship. Simply provide your vehicle’s VIN during checkout, and we will flash this module with the latest GM software specific to your Savana. This ensures it communicates perfectly with your van’s other computers right out of the box, saving you significant time and money.
From the Diagnostic Bay
I remember a fleet manager bringing in a 2011 Savana 3500 that was driving his crew crazy. The interior lights would stay on, the radio would randomly shut off, and sometimes the power locks wouldn’t respond. They had already replaced the battery and checked fuses, but the problems were intermittent and impossible to pin down. After connecting my scan tool, I found a series of U-codes (communication errors) pointing to the BCM. A failing BCM can disrupt the entire CAN bus network, causing these ghost-like issues. We installed a VIN-programmed module, and all the strange electrical gremlins vanished. It’s a common failure point on these hard-working vans, and a pre-programmed module is the most efficient fix.
Is Your Savana Showing These Symptoms?
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, it’s a strong indicator that your Body Control Module needs replacement. This is a crucial step in diagnosing issues before simply replacing parts.
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, mirrors, or door locks working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ The horn sounding unexpectedly or not working when pressed.
- ✔ Instrument cluster warning lights (like the airbag light) illuminating for no reason.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or other U-codes.
- ✔ A no-start condition where the engine cranks but won’t fire due to security system confusion.
A Straightforward Guide to Installation
Replacing the BCM on your Savana van is a manageable job for a confident DIYer or any professional technician. Our pre-programming service eliminates the most complex step.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most 2008-2012 Savana and Express vans, the Body Control Module is located in the center dash area, often accessible by removing lower dash panels.
- Disconnect and Remove: Carefully 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 the new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure each connector clicks 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.
Post-Installation Checkpoints
While our programming handles the heavy lifting, some vehicle systems may require a simple relearn procedure after the BCM is replaced. This is normal and ensures all components are communicating correctly.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure may be needed. This requires a professional scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control operation.
Expert Advice: We always recommend consulting a factory service manual for your specific year and model for detailed instructions and torque specs. While this is a direct-fit part, procedures can have slight variations.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and interchanges with multiple part numbers, ensuring broad compatibility. Please verify your vehicle is on this list. This module is a confirmed fit for the 2008-2012 Savana 3500 BCM and many others.
It is a direct replacement for 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.
Fits models including: Acadia, Avalanche, Caprice, Captiva Sport, CTS, DTS, Enclave, Equinox, Escalade, Express Van (1500/2500/3500), G8, Hummer H2, Impala, Lucerne, Monte Carlo, Outlook, Savana Van (1500/2500/3500), SRX, STS, Suburban, Tahoe, Torrent, Traverse, Vue, and Yukon.
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?No. We program the module to your vehicle’s VIN before shipping it to you. It arrives ready for installation, with no need for a trip to the dealer for programming.