Are you chasing electrical gremlins in your 2006-2013 Chevrolet Impala? Flickering lights, a dead instrument cluster, power windows with a mind of their own, or a security light that won’t turn off are all classic signs of a failing Body Control Module (BCM). As the central nervous system for your car’s comfort and convenience features, a faulty BCM can make driving a frustrating and unpredictable experience. Stop swapping fuses and relays and get to the heart of the problem with a reliable, direct-fit replacement.
This isn’t just a part; it’s a complete solution. We take the biggest headache out of the repair process: programming. Simply provide your vehicle’s VIN during checkout, and our technicians will flash this module with the latest, most stable software directly from GM. This means it arrives at your door ready for installation, saving you from expensive towing bills and high dealership programming fees. It’s the most efficient way to restore full functionality to your vehicle’s electronics.
Case Study: The Haunted Impala
A customer brought in a 2011 Impala with a truly bizarre set of symptoms. The radio would turn on and off randomly, the interior dome light would flicker while driving, and the remote key fob worked only intermittently. They had already replaced the battery and checked the alternator. After hooking up my scan tool, I saw multiple U-codes (communication errors) pointing to the BCM. A common failure point on these models is water intrusion from a degraded cowl seal, which drips directly onto the BCM. After confirming the diagnosis, we installed a pre-programmed module just like this one. The electrical chaos stopped immediately, and the customer was thrilled to have their car back to normal without a massive bill from the dealer.
Common Signs of a Failing GM BCM
If you’re experiencing any of the following, a faulty BCM is the likely culprit. In my shop, I’ve seen these modules cause a wide range of issues that can easily be misdiagnosed.
- ✔ Erratic or non-functional interior/exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system engaging randomly or preventing the car from starting (look for a flashing security light).
- ✔ Instrument panel gauges behaving erratically or going completely dead.
- ✔ Remote keyless entry (fob) failure.
- ✔ Communication error codes, such as U0140 (Lost Communication with BCM).
Your Straightforward BCM Installation Guide
Installing your new 2006-2013 Impala Body Control Module is a manageable job for a confident DIYer. For the Impala, the BCM is typically located on the left (driver’s) side of the dash, often near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes before beginning.
- Locate the BCM: On the 2006-2013 Impala, you’ll likely need to remove the lower dash panel beneath the steering wheel to gain access. It’s a black box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors. They have locking tabs that must be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed BCM into place. Securely reconnect all the electrical harnesses, ensuring each one clicks firmly into place.
- Reconnect Battery & Test: Reinstall any panels you removed, reconnect the negative battery terminal, and start the vehicle. Test all functions: lights, windows, locks, radio, and wipers.
Important Post-Installation Note: In some cases, additional relearn procedures may be necessary. For example, if the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key’ procedure. A ‘Brake Pedal Position Relearn’ may also be required for proper brake light and traction control operation. Always consult a factory service manual for your specific model’s requirements.
Will This BCM Fit My Vehicle?
This Body Control Module is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers. Please verify your original part number against this list for guaranteed compatibility. This module is a confirmed fit for the following models and more:
Select Fitment Includes:
– 2006-2013 Chevrolet Impala
– 2007-2012 GMC Acadia
– 2008-2013 Cadillac CTS
– 2008-2012 Chevrolet Express Van
– 2008-2012 GMC Savana Van
– 2009-2012 Chevrolet Traverse
– 2007-2009 Chevrolet Equinox
– And many more… (Refer to the full fitment list for details)
Frequently Asked Questions
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Is this part difficult to install?
For someone with basic mechanical skills, it is a straightforward process. The main challenge is accessing the module’s location under the dashboard. Since we handle the programming, the electronic part of the job is already done for you.
What information do you need to program the BCM?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN). Please provide it during or after checkout so we can flash the module with the correct software and vehicle-specific options before shipping.
Will this fix my car’s ‘Service Theft System’ message?
A failing BCM is a very common cause of security system faults and ‘Service Theft System’ warnings on GM vehicles. While other issues can cause this, replacing a faulty BCM often resolves the problem.
What if my airbag light comes on after installation?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a professional mechanic with a capable diagnostic tool.