Restore Your Traverse’s Electrical System with a Plug-and-Play BCM
Are you dealing with baffling electrical issues in your 2009-2012 Chevrolet Traverse? Flickering lights, malfunctioning power windows, a temperamental security system, or even a vehicle that refuses to start can all point to a single culprit: a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can create a cascade of frustrating and unpredictable problems. This isn’t just an inconvenience; it can compromise your vehicle’s safety and reliability. We offer a dependable, straightforward solution: a replacement Body Control Module, part number 20864768, delivered to your door fully programmed for your specific vehicle.
Case Study: A Tricky Diagnosis
A customer brought in a 2011 Traverse that was a textbook electrical gremlin case. The radio would randomly shut off, the dome lights would stay on, and occasionally the key fob wouldn’t work. They had already replaced the battery, suspecting a simple power issue. After connecting my diagnostic scanner, I found a series of U-codes (communication errors), specifically U0140 – Lost Communication With Body Control Module. This told me the BCM wasn’t talking correctly with other modules. Instead of a complex wiring issue, the root cause was internal failure of the BCM itself. By installing a VIN-programmed module like this one, we had the vehicle’s electronics functioning perfectly in under an hour, saving the customer from an expensive and time-consuming dealer visit.
Is Your Traverse Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your Body Control Module needs attention. In my shop, these are the most common complaints we trace back to the BCM:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft system engaging randomly, causing a no-start condition.
- ✔ The radio or infotainment system behaving unpredictably.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Inconsistent operation of windshield wipers.
The Smart Solution: VIN-Programmed and Ready to Install
The biggest hurdle in replacing a modern BCM is the need for vehicle-specific programming. Without it, the new module simply won’t work. Our service eliminates this step for you. When you order, you provide us with your Vehicle Identification Number (VIN). Our technicians then flash this 2009-2012 Traverse BCM with the latest GM-approved software calibration for your exact vehicle. This ensures all your factory options are recognized and function correctly right out of the box. You get a reliable part that’s ready for installation, saving you hundreds in dealership programming fees and vehicle downtime.
Your Straightforward BCM Installation Guide
Replacing the BCM in your Traverse is a manageable job for a DIY enthusiast. The module is typically located on the driver’s side, behind the lower dashboard panel near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10-15 minutes to allow all modules to power down completely.
- Access the Module: You will likely need to remove the lower dash panel beneath the steering wheel to gain access to the BCM. This is usually held in by a few screws or clips.
- 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 old module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, making sure they click into place.
- Reconnect Power: Re-install the dash panel and then reconnect the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions: lights, windows, locks, wipers, and radio to ensure everything is working as expected. Note the post-installation procedures below.
Important Post-Installation Information
While this module is sent programmed, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal. Depending on your specific model and options, you may encounter the following:
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-level scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor relearn procedure may be necessary. This can also be done with a professional diagnostic tool.
Disclaimer: Procedures can vary. For detailed instructions specific to your vehicle, always consult a factory service manual or a certified technician.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 20864768 and is compatible with a wide range of General Motors vehicles. Please verify your part number or contact us with your VIN to confirm fitment. This module fits the following:
GMC Acadia: 2007-2012 (Body Control, LH dash)
Buick Enclave: 2008-2012 (Body Control, LH dash)
Chevrolet Impala: 2006-2012 (Body Control, LH dash)
And many more models including: Avalanche, Caprice, Captiva Sport, CTS, DTS, Equinox, Escalade, Express, G8, Hummer H2, Lucerne, Monte Carlo, Outlook, Savana, SRX, STS, Suburban, Tahoe, Torrent, Vue, Yukon. Please refer to the full fitment list in the product details or contact us for confirmation.
Frequently Asked Questions About This BCM
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the Body Control Module with the correct software and calibrations for your Traverse’s specific features and options. This ensures a seamless installation.
Is this a plug-and-play part?
Yes, this part is delivered programmed and is designed to be as close to plug-and-play as possible. However, as noted in the description, certain systems like the airbag or brake sensor may require a simple relearn procedure with a scan tool after installation.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module, which simplifies the process for you.
Will this fix my car’s no-start problem?
A failing BCM is a common cause of no-start issues related to the vehicle’s anti-theft or security system. If your vehicle’s security light is flashing and it won’t start, this module is a very likely solution. Proper diagnosis is always recommended.
What tools do I need for installation?
Basic hand tools like a socket set and a trim removal tool are typically all that’s needed for the physical installation. A professional-grade scan tool may be required for post-installation relearn procedures if warning lights appear.
What if my original part number isn’t 20864768?
This module replaces a long list of original GM part numbers. Please check the cross-reference list in our description. If your number is on that list, this part is the correct replacement for you.