Are you experiencing frustrating electrical issues with your 2006-2013 Chevrolet Impala? A faulty Body Control Module (BCM) is often the culprit behind a host of problems that can make your vehicle feel unreliable and unpredictable. The BCM acts as the central command center for your car’s body electronics, managing everything from the interior lights and power windows to the security system. When it fails, the symptoms can be widespread and confusing. This replacement BCM, part number 15948438, is the definitive solution to restore your vehicle’s electronic systems to factory-perfect operation.
We had a 2011 Impala come into the shop with a classic ‘haunted car’ scenario. The owner reported that the dome lights would flicker randomly, the radio would sometimes not turn on, and occasionally the car wouldn’t start, with the security light flashing on the dash. After checking the battery and alternator, we connected our diagnostic scanner and found multiple communication error codes pointing to the BCM. Instead of a complex and expensive wiring chase, we installed a VIN-programmed Impala Body Control Module. The car started right up, and all the bizarre electrical issues were gone. It’s a common failure point that can mimic much more serious problems.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The security system acting up, causing no-start conditions or false alarms.
- ✔ Warning lights flashing on the instrument cluster for no apparent reason.
- ✔ Inconsistent operation of the radio or climate control system.
- ✔ Complete loss of communication with other vehicle modules.
Replacing Your Impala Body Control Module
We make the repair process straightforward. This isn’t just a part in a box; it’s a complete solution. Upon purchase, you provide us with your vehicle’s VIN. Our technicians then flash the module with the latest official GM software specific to your car’s configuration. This means when you receive it, it’s ready for installation without needing an expensive trip to the dealership for programming. This service ensures compatibility and proper function of all your vehicle’s features.
Post-Installation Information
While our programming handles the majority of the setup, some vehicles may require minor post-installation procedures. These are typically simple and can sometimes be completed without special tools, though a professional scan tool may be needed in certain cases.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system. This requires a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure brake lights and traction control function correctly.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Guaranteed Fitment for Multiple Part Numbers
This module is a direct replacement for a wide range of original part numbers, ensuring broad compatibility. It will fit 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 and fits a wide array of GM vehicles including the Impala, Equinox, Acadia, various Express/Savana vans, and more. Please verify your part number or contact us with your VIN to confirm fitment.
Frequently Asked Questions
What does a Body Control Module do on a Chevy Impala?
The BCM is a computer that manages and controls the vehicle’s non-engine related electronic functions. This includes power windows, locks, lights, security system, wipers, and more. It’s the brain for your car’s body accessories.
Do I need to program this module?
No. We handle the programming for you before shipment. Simply provide your vehicle’s VIN during checkout, and we will flash the module with the correct software for your specific Impala, making installation much simpler.
Is this BCM difficult to install?
For the 2006-2013 Impala, the BCM is typically located on the left-hand side of the dash. Installation involves disconnecting the battery, removing a few trim panels, and swapping the module. It is a manageable job for a DIYer with basic tools, but professional installation is always an option.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to access the exact factory software and configuration options for your car. Programming the BCM with your VIN ensures all features work correctly, just as they did from the factory.
What happens if the airbag light comes on after installation?
This is a normal security measure. The new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A mechanic with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
Is there a core charge for this part?
No, there is no core charge. You can keep your original module without needing to send it back to us.