Fix Bizarre Electrical Issues in Your GM Van or SUV
If your 2008-2012 GMC Savana 1500 is acting possessed—with flickering lights, malfunctioning power windows, or a security system that has a mind of its own—the Body Control Module (BCM) is the likely culprit. As the central command for your vehicle’s body electronics, a failing BCM can cause a cascade of frustrating and seemingly unrelated problems. This isn’t just an annoyance; it’s a critical component for proper vehicle function. We offer a reliable, direct-fit solution: a replacement Body Control Module, programmed specifically for your vehicle’s VIN before it ships.
A Technician’s Notebook
I remember a 2011 Savana work van that came into my bay with a truly baffling set of symptoms. The driver reported the dome lights wouldn’t turn off, the power locks worked intermittently, and the radio would randomly shut down. The scan tool was lighting up with communication codes, primarily U0140 (Lost Communication With Body Control Module). After checking the main power and ground circuits to the BCM, it was clear the module itself had failed internally. Replacing it with a pre-programmed unit like this one had the van’s electronics working perfectly in under an hour. It’s a common failure, and this is the most straightforward fix.
Is Your Savana Showing These BCM Failure Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement. This 2008-2012 Savana 1500 BCM is designed to resolve these exact issues.
- ✔ Power windows, mirrors, or door locks not working or operating erratically.
- ✔ Interior or exterior lights staying on, flickering, or not turning on at all.
- ✔ The anti-theft or security system preventing the vehicle from starting.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Communication Diagnostic Trouble Codes (DTCs) like U0140, U0155, or other U-codes.
Your Straightforward BCM Installation Guide
Installing your new BCM is a manageable job for a confident DIYer or any professional mechanic. With our pre-programmed module, you skip the most difficult step—the trip to the dealer for software flashing.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the systems to discharge.
- Locate the BCM: On the Savana and Express vans, the BCM is typically located in the center dash area. You may need to remove a few dash panels for access. Consult a service manual for your specific model’s location if unsure.
- 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 BCM in the same location and securely reconnect all the electrical connectors. You should hear a click as they lock 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, horn, etc.—to confirm the repair.
- Perform Relearns (If Needed): As noted in our technical details, some vehicles may require an Airbag System Sync or Brake Pedal Position Relearn if specific warning lights are present. This often requires a bi-directional scan tool.
Verified Fitment for Your GM Vehicle
This BCM is a direct replacement for a wide range of GM trucks, vans, and SUVs, ensuring broad compatibility. It is a guaranteed fit for the 2008-2012 Savana 1500 BCM and interchanges with numerous part numbers. Please verify your vehicle is on this list. After purchase, simply provide your VIN, and we’ll handle the programming.
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
ACADIA 07-12 Body Control (BCM); (LH dash)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash)
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE & ESV & EXT 10 Body Control (BCM); (under steering column)
EXPRESS & SAVANA 2500/3500 VANS 08-12 Body Control (BCM)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SRX 07-09 Body Control (BCM); LH dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column)
TAHOE 10 Body Control (BCM); (under steering column)
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON & YUKON XL 1500 10 Body Control (BCM); (under steering column)
This BCM replaces part numbers: 15872421, 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Frequently Asked Questions
Do I need to program this BCM?
No. We program the module to your vehicle’s specific VIN before shipping. This ensures it works correctly with the options your vehicle was built with, saving you a trip to the dealership.
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer that manages most of your vehicle’s non-engine related electronic systems. This includes power windows, door locks, interior and exterior lighting, the security system, and more.
Will I need special tools for installation?
For the physical installation, you’ll only need basic hand tools like a socket set and trim removal tools. However, in some cases, a post-installation relearn procedure (like for the airbag or brake systems) may require a professional bi-directional scan tool.
What happens if my airbag light is on after installation?
If the airbag light is on, the BCM and the airbag system (SDM) need to be synced. This requires a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool. This is only necessary if the light appears after the new BCM is installed.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module, which saves you the time and expense of shipping it back.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it.