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, or a security system that acts up randomly are classic signs of a failing Body Control Module (BCM). As a technician with over 20 years of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant frustration. The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, chaos ensues. This isn’t just an annoyance; it can be a safety concern if it affects lighting or security features.
We offer a dependable and straightforward solution: a replacement Body Control Module, part number 15837419, that arrives at your door fully programmed to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and our experts will flash the module with the latest GM software updates. This critical step ensures seamless integration with your Traverse’s existing systems, eliminating the need for an expensive trip to the dealership for programming. You get a reliable part that’s ready for installation right out of the box.
A Technician’s Notebook: The Case of the Haunted Traverse
I remember a 2011 Traverse that came into my shop with a laundry list of bizarre symptoms. The owner said the interior lights would pulse, the radio would shut off, and sometimes the power liftgate wouldn’t open. He’d already replaced the battery and checked the main grounds. After connecting my scan tool, I found multiple U-codes (communication errors) pointing to the BCM. The location of the BCM on these vehicles—on the left-hand side of the dash—can make it susceptible to moisture intrusion from a leaky windshield seal. Sure enough, upon removal, we found faint corrosion on the BCM’s pins. Installing a new, pre-programmed BCM like this one solved every single issue instantly. It’s a common failure point I’ve diagnosed hundreds of times.
Is Your Traverse Showing These Symptoms?
- ✔ Flickering or erratic interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system or keyless entry failing intermittently.
- ✔ Warning lights on the dash with no apparent cause.
- ✔ Communication error codes (U-codes) stored in the system.
- ✔ Intermittent no-start condition where the engine cranks but won’t fire.
- ✔ Problems with the HVAC (heating and air conditioning) controls.
A Straightforward Guide to Installation
Replacing the 2009-2012 Traverse BCM is a manageable job for a confident DIYer. While specific steps can vary slightly, here is a general guide to get you started.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the systems to discharge completely.
- Locate the BCM: On the 2009-2012 Traverse, the Body Control Module is typically located on the left-hand side of the dashboard, often near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully disconnect all electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely fasten it. Reconnect all the electrical connectors, ensuring they click into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle. In some cases, you may need to perform a post-installation procedure like an airbag system sync or brake pedal position relearn if specific warning lights appear.
Important Post-Installation Notes
While this module is programmed for your VIN, some vehicle systems require a ‘handshake’ with the new BCM. Depending on your Traverse’s specific configuration, you may need a professional scan tool to perform the following:
- Airbag System Sync: If the airbag light is on, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the systems.
- Brake Pedal Position Relearn: A recalibration might be necessary for proper brake light and traction control operation.
There is no core charge for this part. You can keep your old module, saving you the time and expense of a core return.
Will This Fit My Vehicle?
This Body Control Module is a direct replacement for part number 15837419 and a wide array of other original part numbers. It is guaranteed to fit the 2009-2012 Traverse BCM application and many other GM vehicles. Please verify your original part number against the list below or contact us with your VIN to confirm compatibility.
Compatible 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: Acadia (07-12), Enclave (08-12), Traverse (09-12), Equinox (07-09), Impala (06-12), Tahoe/Yukon (10), Express/Savana Vans (08-12), and many more. Always verify by part number or VIN.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to your vehicle’s VIN number before shipping. It arrives ready to be installed, saving you a trip to the dealer.
What information do you need from me?
After you place your order, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for correct programming.
Is this a difficult part to replace for a DIYer?
For someone with moderate mechanical skill, it’s a very manageable job. Accessing the module under the dash is typically the most challenging part. The physical swap is just a few bolts and connectors.
What if an airbag or brake light is on after installation?
This can happen occasionally as the new BCM needs to be introduced to other modules. A professional scan tool is required to perform the ‘Setup SDM Primary Key’ or ‘Brake Pedal Position Relearn’ procedures to clear these lights.
Do I have to return my old BCM?
No, there is no core charge on this item. You can keep your old part.