Restore Your Traverse’s Electrical Functions and Peace of Mind
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable vehicle into a source of daily frustration. If your 2009-2012 Chevrolet Traverse is plagued by baffling electrical problems—like power windows with a mind of their own, flickering dashboard lights, or a security system that prevents the engine from starting—you’ve likely pinpointed the BCM as the culprit. This isn’t just an inconvenience; a faulty BCM can compromise safety systems and leave you stranded. This module is the central command center for your vehicle’s body electronics, and when it fails, chaos ensues.
We offer a dependable and straightforward solution. This Body Control Module, part number 25934763, is a direct-fit replacement for your original unit. The best part? We handle the most critical step for you. Simply provide your vehicle’s VIN at checkout, and our experts will program the module with the latest official GM software specific to your Traverse. This means no expensive trip to the dealership for programming, saving you both time and money. You receive a part that’s ready for installation right out of the box, designed to restore the precise functionality your vehicle had when it left the factory.
From the Diagnostic Bay
A customer brought in their 2011 Traverse last month with a list of strange symptoms. The radio would turn on and off, the driver’s side power lock was inoperative, and occasionally the car wouldn’t start, showing only a ‘Service Theft System’ message. There were no engine codes, but a deeper scan revealed multiple U-codes, specifically a U0140 (Lost Communication With Body Control Module). Instead of chasing individual component failures, my experience pointed directly to the BCM. After confirming power and ground to the module were good, we replaced it with one of our pre-programmed units. The installation was simple, and after performing the required SDM key setup, all the bizarre electrical issues were gone. It’s a classic case where replacing one central component solves a dozen smaller problems.
Is Your Traverse Showing These Symptoms?
A failing BCM often creates a cluster of seemingly unrelated issues. If you’re noticing any of the following, it’s a strong indicator that your 2009-2012 Traverse BCM needs attention:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights flickering or staying on.
- ✔ The security system light is illuminated, and the engine won’t crank.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Communication error codes stored in the system, such as U0140, U0155, or other U-series codes.
- ✔ Inconsistent A/C and heater fan operation.
A Straightforward Guide to Installation
For the confident DIYer, replacing the BCM is a manageable job. The BCM on the 2009-2012 Traverse is typically located on the left-hand (driver’s) side of the dash. While this guide provides the general steps, always refer to a service manual for your specific vehicle. Crucially, the final steps require a professional-grade scan tool.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 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 column to gain access to the BCM. It is a black plastic box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all the electrical connectors. Ensure they click into place.
- Reconnect the Battery: Re-attach the negative battery terminal.
- CRITICAL – Post-Installation Procedures: This step is mandatory. Using a qualified diagnostic tool, you must perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system and will clear the airbag warning light.
- Final Checks: Some vehicles may also require a Brake Pedal Position Sensor recalibration. Test all body functions—lights, locks, windows, wipers—to confirm the repair was successful. If you are not equipped to perform steps 6 and 7, we strongly recommend seeking assistance from a professional mechanic.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 25934763 and interchanges with a wide range of other part numbers. It is guaranteed to fit the following vehicles, but please verify your part number or consult with us if you are unsure.
ACADIA 07-12, 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.
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.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping it. It arrives ready for installation, saving you a trip to the dealership.
Where is the BCM located on my 2010 Traverse?
The Body Control Module on the 2009-2012 Traverse is typically found behind the lower dashboard panel on the driver’s side, near the steering column.
What happens if I don’t perform the post-installation procedures?
Failure to perform the ‘Setup SDM Primary Key’ procedure with a proper scan tool will result in a persistent airbag warning light on your dash, as the new BCM won’t be synced with the safety systems.
Is this a simple plug-and-play part?
It is physically plug-and-play and pre-programmed. However, due to the required airbag system and brake sensor recalibrations, it is not a complete fix without access to a professional-grade diagnostic tool for the final steps.
Will this fix my ‘Service Theft System’ light?
In many cases, yes. The BCM is integral to the Pass-Key/Passlock anti-theft system. A failing BCM is a very common cause of this warning and a related no-start condition.
What information do you need from me?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it.