Restore Full Electrical Function to Your GM Vehicle
Are you chasing electrical gremlins in your car, truck, or SUV? Flickering lights, malfunctioning power windows, a security system that acts up, or even a vehicle that refuses to start can all point to one culprit: a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and unpredictable problems. This isn’t just an inconvenience; it can be a serious safety issue. Stop guessing and replace the core of the problem with a reliable, pre-programmed solution.
This isn’t just a replacement part; it’s a complete service. We take the hassle and high cost of dealership programming out of the equation. When you order, simply provide us with your vehicle’s VIN. Our technicians will then flash this Programmed GM Body Control Module with the latest factory software specific to your exact vehicle. It arrives at your door ready for installation, saving you time, money, and a trip to the service center. This is the definitive fix for restoring the precise electronic control your GM vehicle was designed to have.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 GMC Acadia with a laundry list of bizarre symptoms: the radio would turn on and off by itself, the driver’s side power window worked intermittently, and the anti-theft light would stay illuminated, sometimes preventing the engine from starting. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I noticed several communication error codes between various modules. In my shop, I’ve seen this pattern dozens of times. While it could point to a wiring issue, the combination of unrelated electronic failures strongly suggested the BCM was the root cause. We installed a VIN-programmed BCM, performed the necessary key relearn and SDM setup, and all the ghost-like issues vanished. The customer was thrilled to have their reliable vehicle back without a massive dealership bill.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or interior lights.
- ✔ The security or anti-theft system light stays on, preventing the vehicle from starting.
- ✔ Dashboard warning lights illuminate randomly.
- ✔ Horn, wipers, or radio operate unpredictably or not at all.
- ✔ Key fobs are no longer recognized by the vehicle.
- ✔ Communication errors with other vehicle modules (DTC U-codes).
Your Straightforward BCM Installation Guide
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to power down completely.
- Locate the BCM: The location varies by model. Common spots include under the driver’s side dash (near the steering column), behind the glove box, or in the center console area. Refer to your vehicle’s service manual for the exact position.
- Remove the Old Module: Carefully disconnect all electrical connectors from the old BCM. They have locking tabs that must be depressed to be removed. Then, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely re-attach all electrical connectors. Ensure each one clicks firmly into place.
- Reconnect the Battery: Re-attach the negative battery terminal.
- Perform Final Procedures: After installation, certain critical procedures are required. Proceed to the next section for these vital steps.
CRITICAL Post-Installation Steps
Attention: To ensure full functionality and safety, the following steps must be performed after installing your new Programmed GM Body Control Module. These procedures sync the new module with your vehicle’s other critical systems.
- Airbag System Reset: The ‘Setup SDM Primary Key in BCM’ procedure is mandatory to clear any airbag warning lights and ensure the Supplemental Restraint System is operational. This requires a professional-grade diagnostic scan tool.
- Brake Pedal Position Sensor Relearn: On many models, the Brake Pedal Position (BPP) Sensor must be recalibrated. This is essential for proper brake light operation and stability control system function.
- Theft Deterrent Relearn: Your vehicle may require a key relearn procedure to recognize your existing keys. This can often be done without a scan tool and typically involves a sequence of key cycles.
Note: Specific procedures can vary. If you are not equipped or experienced enough to perform these steps, we strongly recommend seeking assistance from a qualified professional mechanic.
Verified Fitment For Your Vehicle
This Body Control Module is a direct-fit replacement for a wide range of General Motors vehicles. Please verify your model and year from the list below. This unit replaces a number of original equipment part numbers, ensuring broad compatibility. If your old module has any of the following part numbers, this is the correct replacement for you:
Interchangeable 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
Compatible Models Include (but not limited to):
- Cadillac CTS (2008-2013), DTS (2006-2011), Escalade (2010), SRX (2007-2009), STS (2010)
- Chevrolet Avalanche (2010), Caprice (2011-2013), Captiva Sport (2012), Equinox (2007-2009), Express Van (2008-2012), Impala (2006-2013), Monte Carlo (2006-2007), Suburban (2010), Tahoe (2010), Traverse (2009-2012)
- GMC Acadia (2007-2012), Savana Van (2008-2012), Yukon / Yukon XL (2010)
- Buick Enclave (2008-2012), Lucerne (2006-2011)
- Hummer H2 (2008-2009)
- Pontiac G8 (2008-2009), Torrent (2007-2009)
- Saturn Outlook (2007-2010), Vue (2008-2010)
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the climate control fans, ensuring everything works in harmony.
Why do you need my VIN to program the module?
Your Vehicle Identification Number (VIN) contains the exact blueprint of your car’s options and systems. We use it to load the correct GM software and settings onto the BCM, so it works perfectly with your specific vehicle configuration right out of the box.
Is this a difficult part for a DIYer to replace?
The physical replacement is generally straightforward for someone with basic mechanical skills, usually involving simple tools to remove panels and unbolt the module. The most critical part is performing the post-installation relearn procedures, which may require a scan tool.
What happens if I skip the post-installation procedures?
Skipping these steps can leave you with a persistent airbag warning light (a safety hazard and inspection failure), improperly functioning brake lights, or a vehicle that won’t start due to the anti-theft system. These steps are not optional for a complete and safe repair.
Will this part be compatible if my old BCM has a different part number?
Yes. This module is a direct replacement for all the part numbers listed in the ‘Verified Fitment’ section. GM often consolidates multiple part numbers into a single, updated replacement. As long as your old part number is on our list, this module will fit and function correctly.