Restore Full Functionality to Your GM Vehicle
If you’re dealing with baffling electrical issues in your 2008-2012 Savana 2500 Van—like power windows with a mind of their own, flickering dash lights, or a security system that prevents the engine from starting—a failing Body Control Module (BCM) is the likely culprit. As the central nervous system for your vehicle’s body electronics, a faulty BCM can cause widespread, intermittent problems that are frustrating to diagnose and can put your work van or family vehicle out of commission. This isn’t just an inconvenience; for a workhorse like the Savana, downtime means lost business.
This replacement Body Control Module, part number 20864768, is the definitive solution. We take the guesswork and high dealership costs out of the equation. By providing us with your vehicle’s VIN at checkout, you receive a module that is professionally programmed with the latest GM software specific to your vehicle. This isn’t a generic, one-size-fits-all part; it’s a direct-fit component configured to restore your vehicle’s original performance and reliability.
Case Study: The Ghost in the Work Van
I had a fleet manager bring in a 2011 Savana 2500 that was driving his crew crazy. The radio would turn on and off randomly, the interior dome lights would stay on, draining the battery overnight, and occasionally the power door locks wouldn’t respond. They had already replaced the battery and checked the alternator. After hooking up my scan tool, I noticed several U-codes (U0140, U0155) indicating a loss of communication with the BCM. Instead of a costly diagnostic rabbit hole, we installed a pre-programmed 2008-2012 Savana 2500 BCM. The van was back in service the same afternoon, with all electrical gremlins gone for good. This is a classic BCM failure scenario.
Is Your Savana Van Showing These Electrical Gremlins?
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or failing to turn on.
- ✔ The security system light is on, and the vehicle won’t start (anti-theft issue).
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U0140, U0155, or other B-series codes.
- ✔ A battery that drains overnight with no obvious cause.
A Straightforward Guide to Your BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- ✔ Locate the BCM: On most Savana and Express vans, the BCM is located behind the center dash panel, often near the radio or climate controls. You may need to remove trim pieces to access it.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old module. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- ✔ Install the New Module: Mount your new, pre-programmed 2008-2012 Savana 2500 BCM in the same location. Securely reconnect all electrical connectors, ensuring they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test all body functions: lights, windows, locks, wipers, etc.
- ✔ Perform Relearns (If Needed): Start the vehicle. In some cases, you may need to perform additional procedures like an Airbag System Sync or Brake Pedal Position Relearn if related warning lights appear. See our FAQ for more details.
Verified Compatibility for Your GM Vehicle
This module is a direct replacement for a wide range of GM cars, trucks, and SUVs, ensuring a perfect fit and function. It is compatible with part numbers 10382479, 15093910, 15276271, 20864768, 22860591, and many more. It fits models including but not limited to:
Chevrolet: Express 1500/2500/3500 (2008-2012), Impala (2006-2013), Tahoe / Suburban (2010), Traverse (2009-2012), Equinox (2007-2009), Avalanche (2010), Captiva Sport (2012), Monte Carlo (2006-2007)
Cadillac: DTS (2006-11), CTS (2008-13), STS (2010), SRX (2007-09), Escalade / ESV / EXT (2010)
Buick: Enclave (2008-12), Lucerne (2006-11)
Other GM: Hummer H2 (2008-09), Saturn Outlook (2007-10), Pontiac Torrent (2007-09), Pontiac G8 (2008-09), Saturn Vue (2008-10), Holden Caprice (2011-13)
Please verify your part number or contact us with your VIN to confirm compatibility before ordering.
Frequently Asked Questions
Frequently Asked Questions
What is a “Cloning Service”?
Our cloning service means we program this replacement BCM with your vehicle’s specific information using the VIN you provide. This ensures it communicates correctly with your other modules (like the ECM and TCM), retaining all your vehicle’s original features and security settings without a trip to the dealer.
Do I need to send my original BCM to you?
No. Our service is based on programming a replacement unit for you. You simply provide your VIN during the checkout process. We then ship the programmed BCM to you, and your original module is returned to you along with the replacement. We do not keep your original part.
Will this BCM be plug-and-play?
Yes, for the vast majority of functions. Because we program it to your VIN, it eliminates the need for expensive dealer-level programming tools. In some rare cases, a minor relearn procedure, like for the brake pedal position sensor or airbag system, might be needed, which can be done with many professional scan tools.
What do I do if my airbag light is on after installation?
If the airbag (SRS) light is illuminated after you install the BCM, it means the BCM and the Sensing and Diagnostic Module (SDM) need to be synchronized. A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is this a new part?
This is a high-quality, tested, and verified used OEM component. Each unit is inspected and programmed with the latest GM software to ensure it meets or exceeds original factory performance specifications, providing a reliable and cost-effective repair.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your module until we receive this information. This ensures a perfect match for your vehicle.