Restore Your SUV’s Electrical System with a Reliable, Programmed BCM
Are you dealing with baffling electrical problems in your 2009-2012 Chevrolet Traverse? Intermittent power windows, flickering dashboard lights, a security system that acts on its own, or warning messages that come and go are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to go, it can make your reliable SUV feel unpredictable. This isn’t just an annoyance; it can be a safety concern when lights, locks, and security functions don’t work as they should.
As a technician with over two decades of experience, I’ve seen firsthand how a faulty BCM can send owners and even other mechanics on a wild goose chase, replacing batteries and alternators unnecessarily. The solution is often simpler than you think. This replacement Body Control Module is the direct, effective fix you need. We take the guesswork and hassle out of the repair by programming the module specifically to your vehicle’s VIN before it ever leaves our shop. This ensures perfect communication with your Traverse’s other systems, just like the original part from the factory.
A Technician’s Notebook: The Case of the Haunted Traverse
I remember a 2011 Traverse that came into my bay with a list of symptoms that sounded like something out of a horror movie. The owner said the dome lights would pulse randomly, the radio would shut off, and the “Service Stabilitrak” light would flash on the highway, all without a clear pattern. A basic code scan showed a dozen communication errors (U-codes), pointing to a network issue. Instead of just throwing parts at it, we monitored the data bus. We saw that the BCM was periodically dropping off the network, causing all the other modules to report communication loss. This is a tell-tale sign of internal BCM failure. By replacing the faulty unit with a VIN-programmed 2009-2012 Traverse BCM, we restored stable communication and resolved every single one of the ghost-like symptoms in one go.
Is Your Traverse Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Erratic or non-working power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system light is on, or the alarm goes off randomly.
- ✔ The key fob stops working or works intermittently.
- ✔ Dashboard warning lights (like ABS or Airbag) illuminate for no reason.
- ✔ Communication Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or U0164.
- ✔ A vehicle that won’t start despite having a good battery and starter.
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a confident DIYer. Since we program it beforehand, you won’t need a trip to the dealer for software flashing. Here’s a general guide:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: On the 2009-2012 Traverse, the BCM is typically located on the left (driver’s) side of the dashboard, often behind the lower dash panel near the steering column.
- Access the Module: You may need to remove a lower dash trim panel to gain clear access. It’s usually held in by a few clips or screws.
- Swap the Connectors: The BCM will have several multi-pin electrical connectors. Carefully release the locking tabs on each connector and pull them straight out. Remove the old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM onto the bracket and securely plug in all the electrical connectors. You’ll hear a click as they lock into place.
- Final Steps: Reinstall any trim panels you removed and reconnect the negative battery terminal. Start the vehicle to confirm the fix.
Important Post-Installation Information
While this is a plug-and-play solution, some GM vehicles may require a simple relearn procedure for full functionality. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the systems and is not something that can be done without it.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure brake lights and traction control function correctly.
- No Core Charge: We make it easy. There is no core charge on this part, so you can keep your original module without needing to send it back.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any part of the process.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and part numbers. Please match your original part number to the list below to ensure compatibility. This module is programmed for your specific vehicle, making it a reliable fit for many applications.
This module replaces the following 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:
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and vehicle-specific options your Traverse was built with. This step is critical for ensuring all electronic features work correctly and prevents compatibility issues.
Is this part truly plug-and-play?
Yes, for the vast majority of functions. Because we program it to your VIN, it eliminates the need for dealer-level software installation. However, as noted, certain systems like the airbag (SRS) or brake pedal sensor may require a simple ‘relearn’ procedure with a pro-level scan tool after installation.
What tools are required for installation?
Basic hand tools are usually all that’s needed. A socket set, a screwdriver, and a trim removal tool will typically be sufficient to access and replace the BCM. No special electronic tools are required for the physical installation.
Will this fix a ‘Service Airbag’ light?
If the BCM is the cause of the light, yes. However, after installing the new BCM, the airbag system will need to be synced using a ‘Setup SDM Primary Key’ procedure with a capable scan tool to turn the light off. The light will stay on until this is performed.
Do I have to send my old BCM back?
No. We do not require you to return your original module. There is no core charge, which saves you the time and expense of a return shipment.