Restore Control Over Your Traverse’s Electronics
Are you chasing electrical gremlins in your 2009-2012 Chevrolet Traverse? One minute the power windows work, the next they don’t. The security light flashes for no reason, or you’re dealing with a frustrating parasitic battery drain that leaves you stranded. These aren’t separate, unrelated problems. More often than not, they all point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for all your vehicle’s body and accessory functions, and when it starts to fail, it can create widespread and confusing symptoms. This is a direct-fit, VIN-programmed replacement BCM that solves these issues for good.
A Technician’s Notebook
I remember a 2011 Traverse that came into my shop with a laundry list of complaints from the owner. The radio would randomly turn off, the dome lights would flicker, and the car wouldn’t start intermittently. The owner had already replaced the battery and alternator. After hooking up my scan tool, I saw a dozen communication codes (U-codes) pointing to a network failure. Instead of chasing each code, experience told me to look at the network’s hub—the BCM. A quick voltage drop test on the BCM’s power and ground circuits confirmed it was failing internally. We installed a VIN-programmed module just like this one, and every single electrical issue was resolved instantly. It’s a classic failure on this platform.
Is Your Traverse Exhibiting These BCM Failure Signs?
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ A persistent parasitic battery drain that kills your battery overnight.
- ✔ The security system acting up, preventing the vehicle from starting (anti-theft light on).
- ✔ Dashboard warning lights like “Service StabiliTrak” or “Service Airbag” appearing randomly.
- ✔ Communication error codes, such as U0140 (Lost Communication With Body Control Module).
- ✔ Wipers or climate control functions behaving unpredictably.
Your Straightforward Installation Guide
Installing your new BCM is a manageable job for a confident DIYer. Here’s a general guide for your 2009-2012 Traverse:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On the Traverse, the BCM is typically located on the left-hand (driver’s) side of the dashboard, often behind the lower dash panel near the steering column.
- Access and Remove: You will likely need to remove a few trim panels to gain clear access. Carefully disconnect all electrical connectors from the module—they have locking tabs, so don’t force them. Then, unbolt the module from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM onto the mounting bracket and secure it. Reconnect all the electrical connectors, ensuring each one clicks firmly into place.
- Final Steps: Reassemble the dash panels and reconnect the negative battery terminal. Start the vehicle and test all functions (lights, windows, locks, etc.).
Important Post-Installation Steps
Because this module is pre-programmed to your VIN, most functions should work immediately. However, depending on your vehicle’s specific configuration, a couple of additional steps, known as relearn procedures, might be necessary. We are transparent about this so you know what to expect.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag system and must be done with a professional-grade scan tool.
- Brake Pedal Position Relearn: Some models may require the brake pedal position sensor to be recalibrated. This ensures your brake lights and traction control system function correctly.
Disclaimer: Procedures can vary slightly by year and model. Consulting a factory service manual for your specific vehicle is always the best practice.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 20864767 and a wide range of other GM part numbers. While this listing is focused on the 2009-2012 Traverse BCM, this module also fits an extensive list of other GM vehicles. Please confirm your part number or contact us with your VIN to guarantee fitment.
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
ACADIA (07-12), AVALANCHE (10), CAPRICE (11-13), CAPTIVA SPORT (12), CTS (08-13), DTS (06-11), ENCLAVE (08-12), EQUINOX (07-09), ESCALADE (10), EXPRESS/SAVANA VANS (08-12), G8 (08-09), HUMMER H2 (08-09), IMPALA (06-13), LUCERNE (06-11), MONTE CARLO (06-07), OUTLOOK (07-10), SRX (07-09), STS (10), SUBURBAN (10), TAHOE (10), TORRENT (07-09), VUE (08-10), YUKON (10)
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and vehicle-specific options that your Traverse came with from the factory. This ensures all features work correctly and makes the installation process as simple as possible.
Is this a simple plug-and-play installation?
For the vast majority of vehicles, yes. Because we program it to your VIN, you can avoid a costly and time-consuming trip to the dealership for programming. In some cases, minor relearn procedures may be needed post-installation as detailed above.
What is the “Cloning Service”?
Our cloning service means we transfer the critical data from your original module to this replacement unit. It’s a key part of our VIN programming process that ensures seamless functionality. Your original module is always returned to you with the replacement.
Do I need to send my old BCM back to you?
No, there is no core charge or requirement to send your original module back to us permanently. We do require your original module for the cloning process, but it will be returned to you along with the newly programmed replacement unit.
What if my airbag light comes on after I install it?
This is an indication that the BCM and the airbag module (SDM) need to be electronically re-synced. A repair shop with a compatible high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this and turn off the light.