Restore Your Vehicle’s Functionality and Peace of Mind
Are you battling bizarre electrical issues in your GM vehicle? Flickering dash lights, power windows with a mind of their own, a radio that cuts out, or even a frustrating no-start condition? These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it falters, it can cause a cascade of confusing problems. This module is your direct, reliable solution to get your 2011-2013 Caprice or other compatible GM vehicle back to factory-spec operation without the dealership hassle.
A Technician’s Notebook: The Ghost in the Machine
I had a 2012 Caprice PPV (Police Pursuit Vehicle) roll into my bay that was giving the department mechanics fits. The complaint was intermittent no-start and the security light would stay on randomly. They had already replaced the battery and checked the ignition switch. When I connected my scan tool, I found a slew of U-codes, specifically U0140 (Lost Communication With Body Control Module) and others pointing to lost comms with the door and window modules. Instead of chasing each individual symptom, experience pointed me straight to the BCM. A failing BCM often disrupts the entire communication network, creating these ‘ghost’ problems. We installed a VIN-programmed BCM like this one, and every single issue vanished. It’s a prime example of how one part can solve a dozen symptoms.
Is Your GM Vehicle Showing These BCM Failure Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (lights staying on or not turning on).
- ✔ A security or anti-theft light that stays illuminated, preventing the engine from starting.
- ✔ Malfunctioning radio or climate control systems.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or BCM internal faults.
- ✔ Horn not working or sounding off at random.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for a DIYer with basic tools. Our VIN programming service makes it a direct swap, eliminating the need for expensive dealer tools.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system capacitors to discharge.
- Locate the BCM: On most listed vehicles, the BCM is located under the driver’s side of the dashboard, often to the left of the steering column or in the center dash area. Consult a service manual for your specific model’s location.
- 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 your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, radio, etc.—to confirm proper operation.
Important Post-Installation Information
While our programming handles the heavy lifting, some vehicles may require simple relearn procedures after installation to ensure all systems communicate correctly. This is standard for many modern electronic repairs.
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary. This ensures your brake lights and traction control system function correctly.
- No Core Charge: You are not required to return your old BCM. This saves you the time and expense of a core return.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual for procedures specific to your make and model.
Verified Fitment for a Wide Range of GM Models
This BCM is a direct replacement for part number 25934762 and is compatible with a vast array of GM vehicles. We program it specifically for your VIN. Please ensure your vehicle is on this list:
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 / ESV / EXT (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 1500 (10), TAHOE (10), TORRENT (07-09), TRAVERSE (09-12), VUE (08-10), YUKON / YUKON XL 1500 (10).
This unit replaces the following 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
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions to reply with your 17-digit Vehicle Identification Number (VIN). We must have your VIN to program the module before shipping.
Is this a plug-and-play part?
Yes, for most vehicles. Because we program it to your VIN, it eliminates the need for dealer-level programming. However, as noted above, some models may require minor relearn procedures for systems like the airbag or brake pedal sensor.
Will this fix my ‘Service Theft Deterrent System’ message?
In many cases, yes. The BCM is a key component of the anti-theft system. A failing BCM is a very common cause of this warning message and related no-start issues.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn typically require a bi-directional professional scan tool (like a Snap-on, Autel, or GM Tech 2). Most local repair shops can perform these procedures quickly if needed.
Do I need to return my old BCM?
No, there is absolutely no core charge for this part. You can keep your old module or dispose of it responsibly.