Restore Your Vehicle’s Electrical Systems with a VIN-Programmed BCM
Are you chasing down frustrating electrical gremlins in your GM vehicle? Flickering lights, malfunctioning power windows, a temperamental security system, or strange warning messages on your dash are more than just an annoyance—they’re often signs of a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and convenience features, a faulty BCM can make your car or truck feel unreliable. This is the definitive solution to get your vehicle back to operating as it should, without the hassle and expense of a dealership visit.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra steps out of the repair by programming this GM Body Control Module with the latest factory software, specifically matched to your vehicle’s VIN. Simply provide your VIN at checkout, and our experts will handle the complex programming before it even ships. This ensures seamless integration and restores full functionality to your vehicle’s electronics.
Common Signs of a Failing BCM
A failing BCM can cause a wide array of confusing symptoms. In my 20+ years of diagnostics, I’ve seen these modules cause issues that owners often mistake for other problems. If your vehicle is exhibiting any of the following, a faulty BCM is a likely culprit:
- ✔ Erratic interior or exterior lights (flickering, staying on, or not working at all).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Key fob not being recognized or intermittent remote start/lock functions.
- ✔ False security system alarms or a vehicle that won’t start due to a security lockout.
- ✔ Communication error codes, particularly U-codes like U0140 (Lost Communication With Body Control Module), stored in the system.
- ✔ Unexplained battery drain that leaves you with a dead battery overnight.
From the Diagnostic Bay: The Case of the Haunted Express Van
A local contractor brought in his 2016 Express 2500 van, complaining of “haunted” electronics. The radio would shut off, the dome lights would flicker, and occasionally the power locks would cycle on their own. He’d already replaced the battery and checked the main grounds. After hooking up my scanner, I saw multiple communication loss codes pointing to the BCM. These modules, especially in work vans that see a lot of vibration and temperature swings, can develop internal solder joint failures. We installed a VIN-programmed BCM, and within an hour, every single ghost in his machine was gone. This part saved him from days of lost work and diagnostic dead ends.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for a confident DIYer. While the exact location varies, it’s typically found in the driver’s or passenger’s side dash area. Always consult a service manual for your specific vehicle’s location.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10-15 minutes to allow all modules to power down completely.
- Locate the Original BCM: On most listed vehicles (like the Traverse, Acadia, or Impala), it’s on the left-hand side of the dash. For Savana and Express vans, it’s often behind the center dash trim.
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have a locking tab that needs to be depressed or a lever that needs to be swung over. Once disconnected, unbolt or unclip the old module and remove it.
- Install the New Module: Seat the new, pre-programmed BCM in the same position. Securely reconnect all electrical connectors, ensuring they click into place.
- Power Up: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) for 30 seconds to allow the systems to initialize, then start the vehicle and test all functions.
Important Post-Installation Information
Because this GM Body Control Module communicates with other critical systems, some vehicles may require a simple relearn procedure after installation. This is normal and ensures all components work together safely.
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system and requires a professional-grade diagnostic tool.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct-fit replacement for part numbers 22820314 and 22915542 and is guaranteed to fit the following GM models and options:
- ACADIA 2013-2016 (LH dash)
- ACADIA 2017 (VIN J, Limited) (LH dash)
- CAPTIVA SPORT 2013-2015 (center dash)
- CTS 2014 (SW, LH dash)
- CTS 2014 (Sdn, VIN D V-Series, LH dash)
- CTS 2014-2015 (Cpe, 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)
- IMPALA 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
Why do you need my VIN to sell me this part?
Your VIN is essential because it allows us to program the BCM with the specific software and calibrations for your vehicle’s exact options. This ensures all features work correctly right out of the box and saves you a trip to the dealership for programming.
Is this BCM truly plug-and-play?
For most vehicles, yes. The physical installation is plug-and-play. However, as noted, some models may require a simple relearn procedure for the airbag or brake systems, which may require a professional scan tool if a warning light appears.
What does a Body Control Module (BCM) actually do?
The BCM is like the body’s central nervous system for your car. It controls non-engine related functions like power windows, locks, interior/exterior lighting, the security system, key fob recognition, and wipers.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module, which simplifies the process and gets your vehicle repaired faster.
Will this fix my ‘Service Airbag’ light?
If the BCM is the cause of the light, yes. However, if the light appears after installation, it simply means the new BCM needs to be electronically ‘introduced’ to the airbag module using a scan tool, as described in the post-installation notes.