Restore Your Truck’s Electrical System with a VIN-Programmed BCM
If you’re dealing with bizarre electrical problems in your GM truck or SUV—like power windows with a mind of their own, flickering lights, or a dashboard that lights up with random warnings—you’re likely facing a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a cascade of frustrating, hard-to-diagnose issues. I’ve seen it countless times in the shop: a customer comes in after replacing multiple switches and sensors, only to find the root cause was this central computer all along. This isn’t just an inconvenience; it can affect safety systems and even prevent your truck from starting.
This is your direct-fit, reliable solution. We offer a genuine GM Body Control Module, part number 22737275 (also compatible with 22846365 and 22846364), that arrives at your door pre-programmed to your vehicle’s specific VIN. Forget expensive dealership visits and programming fees. Simply provide us with your VIN during checkout, and our technicians will flash the module with the latest GM software updates. This ensures it communicates perfectly with your truck’s existing systems, making for a much smoother installation process.
A Technician’s Notebook
I remember a 2013 Silverado 2500 that came into the bay with a classic case of BCM failure. The owner was at his wit’s end. The radio would turn on and off, the dome light wouldn’t work, and the power locks were completely unresponsive. He had already spent a few hundred dollars on a new door lock actuator and a headlight switch, with no success. After a quick scan, we saw multiple U-codes (communication errors) pointing to the BCM. Instead of a long diagnostic chase, we installed a VIN-programmed module. The entire job took less than an hour, and all the strange electrical gremlins vanished instantly. This is a prime example of how replacing the central component saves time, money, and a lot of headaches.
Is Your Truck Exhibiting These BCM Failure Signs?
A failing BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement. A proper diagnosis with a professional scan tool is always recommended, but these are the tell-tale symptoms I see most often.
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security system engaging randomly or preventing the vehicle from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Instrument cluster gauges behaving erratically or warning lights (like ABS or Airbag) illuminating for no reason.
- ✔ Communication Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or other U-series codes stored in the system.
- ✔ Wipers activating on their own or not responding to the switch.
A Straightforward Guide to Your BCM Installation
Replacing the BCM is a manageable job for a confident DIYer. It’s typically located under the driver’s side of the dashboard, near the steering column. While this pre-programmed module simplifies the process, always prioritize safety and consult a service manual for your specific vehicle if you’re unsure.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the systems to fully discharge.
- Locate the BCM: On most of these GM trucks and SUVs, you’ll find the BCM mounted to a bracket under the driver-side dash, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug all the electrical connectors from the old BCM. They have locking tabs, so be gentle to avoid damage. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring each one clicks firmly into place.
- Post-Installation Steps: Reconnect the negative battery terminal. Start the vehicle and check for proper function of lights, locks, and windows. As noted in our technical information, some vehicles may require a ‘Setup SDM Primary Key in BCM’ or a ‘Brake Pedal Position Relearn’ procedure using a professional scan tool if related warning lights appear.
- Final Check: Test all related functions to confirm the repair is complete. Enjoy your truck’s restored electrical stability!
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct replacement for part numbers 22737275, 22846365, and 22846364. It is guaranteed to fit the following GM models. Please verify your vehicle is on this list before ordering.
- Cadillac Escalade / ESV / EXT: 2012-2014
- Chevrolet Avalanche 1500: 2012-2013
- Chevrolet Silverado 1500 / 2500 / 3500: 2012-2014
- Chevrolet Suburban 1500 / 2500: 2012-2014
- Chevrolet Tahoe: 2012-2014
- GMC Sierra 1500 / 2500 / 3500 (including Denali): 2012-2014
- GMC Yukon / Yukon XL (including Denali): 2012-2014
Frequently Asked Questions
Why do I need to provide my VIN?
Your vehicle’s VIN is essential because it allows us to program the Body Control Module with the specific software and calibrations for your truck’s exact features and options. This ensures seamless integration and prevents compatibility issues, saving you a trip to the dealer for programming.
Is this a plug-and-play part?
For most vehicles, yes. Because we pre-program it to your VIN, the core functions will work upon installation. However, as with any BCM replacement, some vehicles may require a simple relearn procedure for the airbag system or brake pedal position sensor, which requires a professional scan tool.
What happens if my airbag light comes on after installation?
This is an infrequent but known possibility. It means the new BCM needs to be synced with the airbag’s Sensing and Diagnostic Module (SDM). A repair shop with a capable scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this and turn off the light.
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 can be helpful for comparison or as a backup if needed.
Will this fix my ‘Service StabiliTrak’ message?
A failing BCM can sometimes cause a false ‘Service StabiliTrak’ warning because it disrupts communication with the brake and steering sensors. While this module can resolve the issue if the BCM is the root cause, the StabiliTrak system has other common failure points. A full diagnostic scan is the best way to confirm the source of the problem.