Are you chasing down bizarre electrical gremlins in your GM vehicle? Flickering lights, a security system that has a mind of its own, or power windows that refuse to cooperate are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s comfort and convenience features, a faulty BCM can make your daily drive incredibly frustrating. I’ve seen it countless times in my 20+ years in the shop—a perfectly good engine and transmission sidelined by a confused electronic module.
This is your direct, reliable solution. We offer a genuine replacement Programmed BCM 22915542, which also serves as a direct replacement for part number 22820314. The best part? It arrives at your door fully programmed to your vehicle’s specific VIN with the latest GM software updates. This means you can skip the expensive trip to the dealership for programming. Just provide your VIN at checkout, and we handle the rest, creating a true plug-and-play fix.
Common Signs of a Failing BCM
If your vehicle is experiencing any of these issues, a failing BCM is the likely culprit. Over the years, I’ve diagnosed hundreds of these modules, and the symptoms are often confusingly widespread. Look out for:
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing, sometimes causing a no-start condition.
- ✔ Dashboard warning lights illuminating for no apparent reason.
- ✔ Communication error codes stored in the system, such as U0140 (Lost Communication With Body Control Module).
A Technician’s Notebook
I remember a 2014 Savana work van that came into the bay with a complaint of “flickering dash lights and the radio cutting out.” The driver thought he had a major wiring short. After checking the basics—battery, alternator, and main grounds—everything looked solid. A scan revealed intermittent communication loss with the BCM. Instead of hours spent tracing wires, we swapped in a VIN-programmed BCM. The entire job took less than 30 minutes, and all the strange electrical issues vanished. It’s a prime example of how this single component can cause widespread, phantom problems.
A Straightforward Guide to Your BCM Installation
Replacing your BCM is a manageable job for a confident DIYer. While the exact location varies (check your service manual), the process is generally similar. Here’s a typical workflow:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to discharge completely.
- Locate the BCM: On most listed models like the Traverse, Acadia, or Impala, it’s found on the driver’s side, under the dashboard. For Express and Savana vans, it’s typically behind the center dash trim.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. Use a trim removal tool to avoid breaking clips.
- Disconnect and Remove: Unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock in.
- Final Steps: Reassemble the dash panels and reconnect the negative battery terminal. Start the vehicle and test all functions—lights, locks, windows, etc.
Post-Installation Procedures
Because this Programmed BCM 22915542 is the central command for many systems, a couple of simple relearn procedures may be needed after installation:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is required to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system. This is only necessary if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be required to ensure your brake lights and traction control system function correctly.
Verified Vehicle Compatibility
This module is guaranteed to fit the following GM vehicles. Please verify your model and options to ensure a perfect match:
- Acadia: 2013-2016 (LH dash), 2017 (Limited, VIN J, LH dash)
- Captiva Sport: 2013-2015 (center dash)
- CTS: 2014 (SW, LH dash), 2014 (Sdn, V-Series, VIN D, LH dash), 2014-2015 (Cpe, LH dash)
- Enclave: 2013-2017 (LH dash)
- Express 1500/2500/3500 Van: 2013-2018 (center dash)
- Impala: 2013 (ID 22915542 or 22820314, LH dash), 2014-2016 (Limited, VIN W, LH dash)
- Savana 1500/2500/3500 Van: 2013-2018 (center dash)
- Traverse: 2013-2017 (LH dash)
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your VIN is critical. We use it to load your vehicle’s specific software and the latest updates from GM onto the BCM before shipping. This ensures it works correctly right out of the box.
Is this a plug-and-play part?
Yes! Because we program it to your VIN, it is a plug-and-play installation for most functions. Some vehicles may require simple relearn procedures for the airbag or brake pedal sensor, as detailed above.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.
What if the airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key’ procedure to resolve this.
Will this fix my vehicle’s no-start problem?
If the no-start is caused by the BCM failing to recognize your key or engaging the security system, then yes, this part will likely solve the problem. However, no-start conditions can have many causes, so proper diagnosis is always recommended.