Restore Full Functionality to Your GM Truck or SUV
Are you dealing with a cascade of bizarre electrical problems in your truck? One minute the power windows don’t work, the next the radio is acting up, and the security light is flashing for no reason. These aren’t separate issues; they’re classic symptoms of a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can make your reliable truck feel unpredictable. This module is the definitive solution, arriving programmed with the latest GM software specifically for your vehicle’s VIN.
Is Your Truck Plagued by These Electrical Issues?
A failing BCM can be tricky to diagnose because the symptoms seem so random. Over my 20 years in the bay, I’ve seen these modules cause headaches for countless owners. If your truck is showing any of these signs, a failing BCM is the likely culprit:
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security system light stays on, or the vehicle won’t start due to a false theft alert.
- ✔ Radio or infotainment system randomly turns off or behaves strangely.
- ✔ Dashboard warning lights flicker without a clear cause.
- ✔ Communication error codes, such as U0140, U0155, or U0100, stored in the system.
- ✔ Unexplained battery drain that leaves you with a dead battery overnight.
From the Diagnostic Bay: The Case of the Ghostly Gremlins
A customer brought in his 2013 Silverado 2500, completely frustrated. He said it was “haunted.” The dome lights would stay on, the driver’s side window wouldn’t roll down, and his battery was dead every other morning. He had already replaced the battery and the alternator with no success. After hooking up my scan tool, I saw a slew of communication loss codes pointing to the BCM. It wasn’t talking correctly to the other modules. We installed a VIN-programmed BCM, and instantly, all the ghostly electrical gremlins vanished. It’s a common story for these GM trucks, and a new BCM is almost always the fix.
The Smart Solution: Programmed and Ready for Installation
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. Simply provide us with your vehicle’s 17-digit VIN during checkout, and our technicians will program this module with the latest factory software for your specific vehicle. It arrives at your door ready to be installed, saving you hundreds in dealer fees and getting you back on the road faster. This is the most efficient way to perform this repair, whether you’re a seasoned mechanic or a determined DIYer.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for someone with basic tools. It’s located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the Module: On most of these GM trucks and SUVs, the BCM is mounted to a bracket or junction block under the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the multiple electrical connectors. They have locking tabs that need to be depressed. Once all connectors are free, unbolt or unclip the old BCM from its mounting location.
- Install the New BCM: Mount your new, pre-programmed BCM in the exact same position as the old one. Reconnect all electrical connectors firmly until they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: windows, locks, lights, radio, etc.
Post-Installation Procedures
In some cases, your vehicle may require a simple relearn procedure to fully sync with the new module. This is normal. The two most common are:
- Airbag System Sync: If your airbag (SRS) warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require this to ensure the brake lights and traction control system function correctly. This can also be performed with a capable scan tool.
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct-fit replacement for the original and is compatible with a wide range of GM vehicles. It directly replaces part numbers 22846365, 22737275, and 22846364.
Compatible Models Include:
- 2012-2014 Cadillac Escalade, Escalade ESV, Escalade EXT
- 2012-2013 Chevrolet Avalanche 1500
- 2012-2013 Chevrolet Silverado 1500 Pickup
- 2012-2014 Chevrolet Silverado 2500 / 3500 Pickup
- 2012-2014 Chevrolet Suburban 1500 / 2500
- 2012-2014 Chevrolet Tahoe
- 2012-2013 GMC Sierra 1500 Pickup & Sierra Denali 1500
- 2012-2014 GMC Sierra 2500 / 3500 Pickup & Sierra Denali 2500 / 3500
- 2012-2014 GMC Yukon & Yukon XL 1500
- 2012-2013 GMC Yukon XL 2500
Please verify your part number or contact us with your VIN to ensure compatibility.
Frequently Asked Questions
What happens after I purchase?
After you place your order, you must provide us with your vehicle’s 17-digit VIN. We cannot ship the module until we have this information to program it correctly for your truck.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.
Will I need any special tools for the installation?
Basic hand tools (sockets, screwdrivers) are all that’s needed for the physical installation. However, as noted, a professional scan tool may be required for post-installation procedures like the airbag system sync if the warning light appears.
Is this a guaranteed fix for my vehicle’s electrical problems?
This module corrects issues directly caused by a faulty BCM. While the symptoms listed are extremely common for BCM failure, we always recommend a proper diagnosis by a qualified mechanic to rule out other potential causes like wiring or sensor faults.
What if the airbag light comes on after I install it?
This is a known possibility. It simply means the new BCM needs to be electronically introduced to the airbag module (SDM). A repair shop with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.