Restore Your Vehicle’s Electrical System with a Reliable, Programmed BCM
Are you dealing with baffling electrical problems in your GM vehicle? Flickering dashboard lights, power windows and locks with a mind of their own, or a security system that prevents your car from starting? These are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a cascade of frustrating and unpredictable issues. This isn’t just an inconvenience; it can affect the proper function of critical systems. Stop chasing electrical gremlins and get a definitive solution with our pre-programmed BCM.
We take the guesswork and hassle out of the repair. Simply provide your vehicle’s VIN during checkout, and our technicians will flash this module with the latest, most stable software direct from GM. This means it arrives at your door ready for installation, saving you a costly trip to the dealership and eliminating the need for expensive programming tools. It’s the most efficient way to get your car, truck, or SUV back to 100% functionality.
A Technician’s Notebook: The Tahoe with a Ghost
I remember a 2008 Tahoe that came into the bay last winter. The owner was at his wit’s end. He’d been to two other shops for an intermittent no-start and a driver’s window that worked only when it wanted to. No one could find the cause. After connecting my scan tool, I saw a slew of ‘U’ codes—communication errors—all pointing back to one component: the BCM. It was intermittently failing, acting like a bad switchboard operator, dropping calls between the other modules. We installed one of our pre-programmed BCMs, and in under an hour, every single issue was resolved. The customer was thrilled to have his reliable truck back, and it’s a perfect example of how a central failure can cause widespread, confusing symptoms.
Is Your GM Vehicle Exhibiting These Faults?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- âś” Power windows, door locks, or mirrors operating erratically or not at all.
- âś” Interior dome lights or dashboard lights staying on or not working correctly.
- âś” The security or anti-theft light flashing, causing a no-start condition.
- âś” Horn, wipers, or radio functioning intermittently.
- âś” Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or U0100.
- âś” False warnings on the driver information center (DIC).
Your Straightforward BCM Installation Guide
For many DIYers and professionals, swapping the BCM is a manageable job. While the location varies by model (see fitment list), the general process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the BCM: On most listed vehicles, it’s found under the driver’s side dash, near the steering column, or in the center dash area. A quick search for your specific model will confirm its location.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be depressed to release them. Avoid pulling on the wires. Once disconnected, unbolt or unclip the old module and remove it.
- Install the New Module: Seat the new, pre-programmed BCM in the mounting bracket and secure it. Firmly reconnect all electrical connectors, ensuring 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, wipers, etc.—to confirm the repair.
Post-Installation Procedures: What to Expect
Because this module is central to many systems, a couple of additional steps may be needed after installation:
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be done with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn is necessary to ensure correct brake light and traction control operation. This also typically requires a capable scan tool.
- Disclaimer: Specific requirements can vary. Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Verified Fitment for a Wide Range of GM Models
This BCM is a direct replacement for numerous part numbers and fits a vast selection of GM vehicles. Please verify your model and year below. This module 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.
Fits Models Including: 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). Note: Please match your part number or contact us with your VIN to guarantee compatibility.
Frequently Asked Questions
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, security system, interior and exterior lighting, wipers, and horn, ensuring everything works in harmony.
Is this module truly plug-and-play?
Yes, for most functions. Because we program it to your VIN before shipping, it will control the base options your vehicle came with from the factory. Some systems, like the airbag (SRS), may require a simple sync procedure with a professional scan tool after installation.
Where do I find my VIN to provide for programming?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a metal plate on the driver’s side of the dashboard, visible through the windshield.
What happens if I don’t do the post-install relearn procedures?
If the airbag light is on, the system will not be active, so it is a critical safety step. If a brake pedal relearn is needed and not performed, you may have issues with brake light operation or inaccurate traction/stability control engagement.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module, which can be helpful if you ever need to reference its part number or sell the vehicle with its original components.