Restore Your Van’s Electrical System with a Reliable, Programmed BCM
If you’re dealing with bizarre electrical issues in your 2008-2012 GMC Savana 2500—like flickering dash lights, power windows with a mind of their own, or a security system that randomly prevents the van from starting—you’re not alone. After 20 years in the business, I’ve seen countless work vans sidelined by these exact problems. The culprit is almost always a failing Body Control Module (BCM). It’s the central hub for your vehicle’s body electronics, and when it goes, it creates a cascade of frustrating, hard-to-diagnose symptoms. This isn’t just an inconvenience; for a work van, it’s lost time and money.
That’s why we offer this direct-fit BCM, a dependable solution to get your Savana back in service. The best part? We handle the complicated part for you. Simply provide your van’s VIN at checkout, and my team will program the module with the latest GM software updates specific to your vehicle. It arrives at your door ready for installation, saving you a costly trip to the dealership for programming. This is the same process we use in our own shop to ensure a perfect match and reliable performance.
From the Diagnostic Bay: The Case of the Intermittent No-Start
A local contractor brought in his ’11 Savana 2500. The van would randomly refuse to start, with the security light flashing on the dash. He’d already replaced the battery and checked the ignition switch. On my scan tool, I found a slew of communication error codes (U-codes) pointing to the BCM. The module wasn’t properly communicating with the anti-theft system. Instead of a complex rewiring job, we installed a VIN-programmed BCM. The new module restored communication instantly. The van started every time, and the contractor was back on the job the same afternoon. This highlights how a faulty BCM can mimic other, more expensive problems.
Is Your Savana Showing These Symptoms?
A failing BCM can cause a wide range of issues. If you’re experiencing any of the following, this module is the likely solution for your 2008-2012 Savana 2500 BCM problems:
- ✔ Erratic or non-functional power windows, door locks, or interior lights.
- ✔ The security or anti-theft light stays on, causing a no-start condition.
- ✔ Dashboard gauges behaving strangely or not working at all.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Communication Diagnostic Trouble Codes (DTCs) like U0140, U0155, or U0100 stored in other modules.
- ✔ Wipers or climate control functions operating intermittently.
A Straightforward Guide to Installation
For the confident DIYer or professional technician, installing this 2008-2012 Savana 2500 BCM is a manageable job. Since we’ve pre-programmed it to your VIN, you can skip the dealership visit.
- Safety First: Always disconnect the negative battery terminal and wait a few minutes before starting any electrical work.
- Locate the BCM: In most Savana and Express vans, the BCM is located behind the center dash panel, often near the radio or climate controls. You will need to remove some trim panels to access it.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed 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 and test all body functions (lights, locks, windows, etc.) before reassembling the dash.
- Post-Install Checks: As noted below, some vehicles may require a simple relearn procedure for the brake pedal position sensor or, in rare cases, an airbag system sync if the warning light appears.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 20864767 and a wide range of other GM part numbers. It is guaranteed to fit 2008, 2009, 2010, 2011, and 2012 GMC Savana 2500 Vans. It also fits many other GM vehicles, including the Express Van, Acadia, Tahoe, Enclave, and more. Please verify your original part number against our cross-reference list to ensure a perfect match.
Compatible Part Numbers Include: 15819552, 15828601, 15921352, 20815898, 20864767, 22860591, 25892622, 25910474, and many others.
Frequently Asked Questions
Do I need to send my old BCM back?
No, there is no core charge for this module. You can keep your original part.
Is this BCM truly plug-and-play?
Yes, it comes programmed to your vehicle’s VIN. In most cases, you can simply install it. However, some models may require additional, simple relearn procedures for certain systems like the brake pedal position sensor after installation.
What do I do if my airbag light comes on after installation?
If the airbag (SRS) light is on, the vehicle needs a ‘Setup SDM Primary Key in BCM’ procedure. This requires a professional-grade scan tool to sync the new BCM with the airbag system. This is not required on all vehicles.
What information do you need to program the module?
We need your vehicle’s 17-digit Vehicle Identification Number (VIN). Please provide it during checkout or send it to us in a message after your purchase to ensure a speedy delivery.
Will this fix my specific problem?
This module corrects issues directly caused by a failing BCM. While it resolves the most common electrical problems, always ensure a proper diagnosis has been performed. If you’re unsure, consult with a qualified mechanic.