Fix Bizarre Electrical Problems with a VIN-Programmed BCM
Are you chasing electrical gremlins in your GM vehicle? Intermittent power windows, flickering dash lights, malfunctioning door locks, or even a no-start condition can often be traced back to one central component: a failing Body Control Module (BCM). As a technician with over 20 years of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant frustration. This isn’t just an inconvenience; it can be a safety issue when exterior lights or security systems fail unexpectedly.
This replacement GM Body Control Module, part number 22915542, is the definitive solution. We take the hassle and high cost out of the repair by programming the module to your vehicle’s specific VIN before we ship it. This means no expensive trip to the dealership for programming. You get a component loaded with the latest GM software updates, ensuring optimal performance and resolving issues caused by outdated factory programming. It’s a direct-fit replacement, ready for installation right out of the box.
Case Study: A Tricky Diagnosis
A customer brought in their 2014 Chevy Traverse with a laundry list of bizarre symptoms: the radio would turn on and off by itself, the driver’s side power window worked only occasionally, and the anti-theft light would stay on, preventing the car from starting. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I found multiple U-codes (U0140, U0155) pointing to a loss of communication with the BCM. Instead of a clear “BCM Failure” code, the network chatter told the real story. The GM Body Control Module was acting as a noisy, disruptive node on the vehicle’s CAN bus network, causing chaos across other systems. Installing a VIN-programmed BCM resolved all issues instantly, restoring the vehicle’s functionality and the owner’s peace of mind.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely culprit. Replacing it can restore proper function and prevent further electrical complications.
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security system engages randomly, preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Dashboard warning lights (like ABS, Airbag, or Traction Control) illuminate for no reason.
- ✔ Communication error codes stored in the system (often U-codes like U0140).
- ✔ Wipers activating on their own or not responding to the switch.
A Straightforward Guide to Installation
Installing your new BCM is manageable for a DIYer with basic tools. Remember to consult your vehicle’s specific service manual for detailed diagrams and torque specs.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to allow all systems to discharge completely.
- Locate the BCM: On most compatible models (like the Traverse, Acadia, CTS, and Impala), the BCM is located on the driver’s side, under the dashboard to the left of the steering column. On Savana and Express vans, it is typically found in the center dash area.
- Remove the Old Module: Carefully unplug all electrical connectors. They have locking tabs, so be gentle to avoid breaking them. Once disconnected, unbolt the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely fasten it. Reconnect all electrical connectors, ensuring each one clicks firmly into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test all body functions: lights, locks, windows, wipers, etc.
Important Post-Installation Steps
While this module is programmed for your VIN, some vehicle systems may require a ‘handshake’ procedure to recognize the new BCM. This is normal and often straightforward.
- Airbag System Sync: If your airbag warning light is on after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be necessary to ensure brake lights and stability control systems function correctly. This can also be performed with a capable scan tool.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or a qualified professional if you are unsure about any step.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 22915542 and 22820314 and is guaranteed to fit the following GM vehicles:
- ACADIA: 2013-2016 (LH dash)
- ACADIA LIMITED: 2017 (VIN J, 11th digit, LH dash)
- CAPTIVA SPORT: 2013-2015 (center dash)
- CTS: 2014 (SW, LH dash), 2014-2015 (Coupe, LH dash), 2014 (Sedan, VIN D V-Series, LH dash)
- ENCLAVE: 2013-2017 (LH dash)
- EXPRESS 1500 VAN: 2013-2014 (center dash)
- EXPRESS 2500 VAN: 2013-2018 (center dash)
- EXPRESS 3500 VAN: 2013-2018 (center dash)
- IMPALA: 2013 (LH dash), 2014-2016 (VIN W, Limited, LH dash)
- SAVANA 1500 VAN: 2013-2014 (center dash)
- SAVANA 2500 VAN: 2013-2018 (center dash)
- SAVANA 3500 VAN: 2013-2018 (center dash)
- TRAVERSE: 2013-2017 (LH dash)
Frequently Asked Questions
Do I need to send my old BCM back?
No. We do not require a core return for this part. You can keep your original module.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive your VIN to program the module.
Is this a plug-and-play part?
Yes, for the most part. Because it comes programmed to your VIN, it eliminates the need for dealership programming. However, as noted, some vehicles may require a simple relearn procedure for the airbag or brake pedal position sensor, which requires a scan tool.
What tools are required for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional scan tool. Basic code readers cannot perform these functions. Many independent repair shops have this equipment.
Will this fix my specific problem?
This module corrects issues directly caused by a failing BCM. If your vehicle has been properly diagnosed with a faulty Body Control Module, this part is the correct solution. It will not fix problems related to other faulty components, wiring, or sensors.