Are you chasing electrical gremlins in your GM vehicle? Flickering lights, power windows with a mind of their own, or a security system that randomly prevents you from starting the car? As a technician with over two decades of experience, I’ve seen these frustrating issues hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM)—the central command center for your vehicle’s comfort and convenience features.
Don’t let a faulty module keep you off the road or force you into an expensive dealership visit. This is a direct-fit replacement Programmed GM BCM, part number 22820314 (also interchangeable with 22915542). We take the guesswork and hassle out of the repair. Simply provide us with your vehicle’s VIN during checkout, and our experts will flash the module with the latest, most stable software directly from GM. It arrives at your door ready for a straightforward installation, saving you hundreds in dealership programming fees.
From the Diagnostic Bay: The Case of the Haunted Traverse
A customer brought in a 2015 Chevy Traverse, complaining that the battery would be dead every morning. They’d already replaced the battery and alternator. In my shop, I noticed the interior dome lights would subtly flicker even when the car was off. After hooking up my scan tool, I found a slew of communication error codes, specifically a U0140 – Lost Communication With Body Control Module. The BCM wasn’t going to ‘sleep’ properly, causing a parasitic draw that drained the battery overnight. Swapping in a pre-programmed BCM like this one solved the drain, the flickering lights, and got the customer back on the road reliably.
Common Signs of a Failing GM BCM
A failing BCM can cause a wide range of bizarre and seemingly unrelated symptoms. If your vehicle is experiencing any of the following, a faulty BCM is a likely cause:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system or alarm malfunctioning, leading to no-start conditions.
- ✔ The horn honking randomly or not working when pressed.
- ✔ Dashboard warning lights illuminating for no apparent reason.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
Your Straightforward BCM Installation Guide
Replacing your BCM is a manageable job for a confident DIYer. While the exact location varies (typically behind the driver’s or passenger’s side dash), the process is generally similar.
- 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: On most listed models, it’s found on the left-hand (driver’s) side of the dashboard or in the center dash area. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in place and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal. Your vehicle is now ready to start.
Important Post-Installation Note: In some cases, additional vehicle-specific relearn procedures may be required. For example, if your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ may be necessary. Always refer to a factory service manual for your specific model’s requirements.
Verified Fitment For These GM Vehicles
This module is guaranteed to be a compatible replacement for part numbers 22820314 and 22915542 on a wide range of vehicles. Please check your original part number to confirm compatibility.
- ✔ Acadia (2013-2017)
- ✔ Captiva Sport (2013-2015)
- ✔ CTS (2014-2015)
- ✔ Enclave (2013-2017)
- ✔ Express 1500/2500/3500 Vans (2013-2018)
- ✔ Impala / Impala Limited (2013-2016)
- ✔ Savana 1500/2500/3500 Vans (2013-2018)
- ✔ Traverse (2013-2017)
Frequently Asked Questions
Programmed GM BCM
Is this BCM truly plug-and-play?
Yes, this is flashed with your vehicle’s specific software, so it does not require a trip to the dealer for programming. However, as with any major electronic component, some vehicles may require minor relearn procedures (like for the brake pedal sensor or airbag system) after installation, which may require a professional scan tool.