Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
If you’re dealing with bizarre and frustrating electrical problems in your 2009-2012 Chevrolet Traverse, you’re not alone. The Body Control Module, or BCM, is the central command center for your vehicle’s comfort and convenience features. When it starts to fail, it can create a cascade of issues that seem unrelated, from flickering lights to a car that won’t start. This isn’t just an inconvenience; it can be a serious safety concern. We offer a dependable, pre-programmed Body Control Module that gets you back on the road without the exorbitant costs and delays of a dealership visit.
This is a direct-fit replacement BCM, part number 15921352. The critical difference with our service is that we perform a Cloning Service before shipping. You provide us with your vehicle’s VIN, and we transfer the essential data from your original module to this replacement unit. This ensures that it communicates perfectly with your vehicle’s other computers, retaining all your specific options and security information. The result is a simple, plug-and-play installation that you or your trusted mechanic can perform, saving you time, money, and the headache of towing your vehicle for on-site programming.
Common Signs of a Failing BCM
A faulty BCM can manifest in numerous ways. As a technician, I’ve seen these modules cause some of the most confusing diagnostic chases. If your Traverse is exhibiting any of these symptoms, a failing BCM is a likely culprit:
- ✔ Erratic power windows, door locks, or interior/exterior lights that work intermittently or not at all.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Dashboard warning lights for ABS, Traction Control, or Airbags appear without a clear cause.
- ✔ The radio or climate control system behaves erratically or shuts down completely.
- ✔ Diagnostic trouble codes (DTCs) indicating a loss of communication with the BCM, such as U0140.
- ✔ A parasitic battery drain that leaves you with a dead battery overnight.
A Technician’s Notebook: The Water-Damaged Traverse
I remember a 2011 Traverse that came into the shop with the strangest collection of symptoms. The owner said the radio would randomly change stations, the driver’s side window wouldn’t go down, and occasionally the horn would honk when he used the turn signal. He’d been to two other shops that couldn’t find the issue. My first instinct was to check the BCM, which on these models is located under the driver’s side dash. Sure enough, we found evidence of water intrusion from a leaking windshield cowl seal. The moisture had corroded the BCM’s circuit board, causing it to send chaotic signals throughout the car. We replaced it with a VIN-programmed unit like this one, and every single issue was resolved instantly. It’s a perfect example of how one component can create system-wide havoc.
Your Straightforward BCM Installation Guide
Replacing your 2009-2012 Traverse BCM is a manageable job for a confident DIYer. Our cloning service eliminates the need for expensive scan tools for programming, making the process much simpler.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the 2009-2012 Traverse, the BCM is typically found on the left side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- 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 module from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. You should hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, locks, windows, radio, etc., to confirm the repair.
Important Post-Installation Steps
While our cloning service makes this a plug-and-play part, some vehicle systems may require a quick recalibration after the BCM is replaced. These are standard procedures that a professional scan tool can perform if needed.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary to sync the systems. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure correct brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 15921352 and is compatible with a wide range of General Motors vehicles. Please verify your part number and check the list below to ensure compatibility.
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
This module also replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
How does the cloning service work?
After you place your order, you’ll need to send us your original BCM. We use specialized equipment to extract the vehicle-specific data (like VIN, mileage, and security keys) and flash it onto the replacement module. This makes the new module a perfect electronic match for your vehicle, avoiding complex reprogramming.
Do I need to provide my VIN?
Yes, providing your VIN is a crucial step. We use it to verify the correct software and calibration files for your specific vehicle build, ensuring 100% compatibility and function.
Will I get my original BCM back?
Absolutely. Your original module is always returned to you along with the newly programmed replacement unit. We do not keep customer cores.
Is any special programming required after I install it?
In most cases, no programming is needed. It’s designed to be plug-and-play. However, as noted above, certain systems like the airbag or brake position sensor may require a simple relearn procedure with a scan tool if a warning light appears.
What if this doesn’t fix my problem?
While a BCM failure is common for these symptoms, we always recommend a proper diagnosis. If you install the module and issues persist, the problem may lie in another component or wiring. We are here to help with diagnostic advice if you get stuck.