Is Your Impala Plagued by Electrical Gremlins?
As a technician with over two decades of diagnostic experience, I’ve seen firsthand the frustration a failing Body Control Module (BCM) can cause in a 2006-2013 Chevrolet Impala. One minute your power windows work, the next they don’t. The security light flashes for no reason, or you’re dealing with a car that won’t start intermittently. These aren’t random, unrelated issues; they’re classic signs that the central command center for your car’s body electronics is failing. The BCM is the brain behind your lights, locks, windows, and security system, and when it goes, it can feel like your car has a mind of its own.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional Cloning Service with your purchase. This means we transfer all the critical data from your original BCM directly to this replacement unit before we ship it. By using your Vehicle Identification Number (VIN), we ensure the module is programmed with the latest GM software updates and is perfectly matched to your car’s specific options. The result is a truly plug-and-play repair that saves you a costly trip to the dealership for programming.
A Technician’s Notebook: The Case of the Haunted Impala
I remember a 2011 Impala that came into the shop with a list of bizarre symptoms. The owner said his radio would turn off, the door locks would cycle while driving, and the anti-theft light would stay on, preventing it from starting. He’d already replaced the battery and checked the fuses. A quick scan showed a slew of ‘Lost Communication’ codes, specifically a U0140 pointing to the BCM. This is a tell-tale sign. The internal circuits of the original BCM were failing, sending scrambled signals across the car’s network. By installing a VIN-programmed BCM like this one, we restored communication between all the modules and resolved every single one of his electrical headaches in one shot. It’s a common failure, but thankfully, a straightforward fix.
Common Signs of a Failing BCM
If your Impala is experiencing any of the following, a faulty BCM is the most likely cause. A proper diagnosis is key, but these symptoms are strong indicators.
- ✔ Power windows, door locks, or interior lights operating erratically or not at all.
- ✔ The security or anti-theft light is illuminated on the dash, possibly causing a no-start condition.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Dashboard warning lights (like ABS or Airbag) appearing without a clear cause.
- ✔ Diagnostic trouble codes (DTCs) related to communication, such as U0140, U0155, or U0100.
- ✔ Wipers turning on by themselves or not responding to the switch.
Your Straightforward BCM Installation Guide
Installing your cloned 2006-2013 Impala Body Control Module is a manageable job for a confident DIYer. The BCM is typically located on the left (driver’s) side of the dashboard, often near the steering column or behind the lower dash panel.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10-15 minutes to allow all systems to power down completely.
- Access the Module: You will likely need to remove the lower dash panel beneath the steering wheel. This is usually held in by a few screws or clips.
- Locate and Unplug: Identify the BCM. It’s a plastic box with several large multi-pin electrical connectors. Carefully release the locking tabs on each connector and pull them straight out.
- Swap the Modules: Unbolt the old BCM from its mounting bracket. Mount the new, pre-programmed module in its place.
- Reconnect and Reassemble: Firmly plug all electrical connectors into the new BCM until they click into place. Reinstall the dash panel and any other trim you removed.
- Power Up and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: windows, locks, lights, wipers, and horn.
Important Post-Installation Note: In some cases, additional relearn procedures may be required. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A ‘Brake Pedal Position Relearn’ might also be necessary. Always refer to a service manual for your specific vehicle if you are unsure.
Verified Fitment For These GM Vehicles
While this part is a direct fit for the 2006-2013 Impala, our cloning service ensures it also works perfectly as a replacement for numerous part numbers across a wide range of GM vehicles. Please verify your original part number against the list below or contact us with your VIN to confirm compatibility.
Compatible 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 (10), Caprice (11-13), Captiva Sport (12), CTS (08-13), DTS (06-11), Enclave (08-12), Equinox (07-09), Escalade (10), Express/Savana Vans (08-12), G8 (08-09), Hummer H2 (08-09), Lucerne (06-11), Monte Carlo (06-07), Outlook (07-10), SRX (07-09), STS (10), Suburban (10), Tahoe (10), Torrent (07-09), Traverse (09-12), Vue (08-10), Yukon (10)
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows us to program the replacement BCM with the exact software and vehicle-specific options your Impala came with from the factory. This is the key to our simple plug-and-play installation process.
Is this a plug-and-play part?
Yes! Because we perform a cloning service using your vehicle’s data, this module will be ready to install right out of the box with no additional programming required. In rare cases, a minor relearn procedure like for the brake pedal sensor may be needed, which is common for this type of repair.
What if my airbag light comes on after installation?
This can happen occasionally. It means the BCM needs to be synced with the airbag system’s SDM (Sensing and Diagnostic Module). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to send my original BCM to you?
No, you do not need to send us your original part. We use your VIN to program the replacement module. The entire process is designed to get your car back on the road as quickly as possible.
Will this fix my security light and no-start problem?
A faulty BCM is a very common cause for these exact issues on GM vehicles. Our cloning service transfers your key’s security information, so this module is highly likely to solve problems related to the Passlock or Passkey III anti-theft systems.