Are you chasing down bizarre electrical gremlins in your 2012-2013 Chevrolet Avalanche 1500 or another compatible GM truck? Flickering lights, malfunctioning power windows, or a security system that has a mind of its own are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, when the BCM starts to fail, it can cause a cascade of frustrating and seemingly unrelated problems. This isn’t just an annoyance; it’s a critical component failure that can affect your vehicle’s daily operation and safety.
This is a direct-fit, VIN-programmed BCM that restores full functionality to your vehicle’s electronics. We take the guesswork and dealer hassle out of the equation. Simply provide your vehicle’s VIN at checkout, and my team will flash this module with the latest, most stable software directly from GM. It arrives at your door ready for a straightforward installation, saving you from expensive dealership programming fees and diagnostic time.
From the Diagnostic Bay: The Case of the Haunted Silverado
A customer brought in his 2013 Silverado 2500 with a list of complaints that sounded like a prank. The dome light would stay on, the driver’s side window wouldn’t go down, and the radio would randomly change stations. He’d already replaced the battery and checked all the fuses. A quick scan showed a dozen communication codes (U-codes) pointing to a network failure. After 20 years in the business, I knew this wasn’t a wiring issue—it was the BCM. The internal processors were failing, corrupting the data network. We installed a VIN-programmed BCM just like this one, and in under an hour, every single issue was resolved. This module is the definitive fix for that kind of electrical chaos.
Is Your Truck Showing These BCM Failure Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, a new module is likely the solution you need:
- ✔ Intermittent or non-working power windows, door locks, and mirrors.
- ✔ Erratic interior or exterior lighting (flickering, staying on, or not working at all).
- ✔ False warnings on the instrument cluster (e.g., “Service 4WD,” “Service StabiliTrak”).
- ✔ Key fob not responding or security system preventing the engine from starting.
- ✔ Communication error codes, particularly U-codes like U0140, U0151, or U0100.
- ✔ Wipers or horn activating unexpectedly.
Your Straightforward BCM Installation Guide
Replacing the BCM is a task a confident DIYer can handle. Located under the driver’s side of the dashboard, it’s accessible with basic hand tools. Follow these general steps for a successful installation:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 15 minutes before beginning.
- Locate the BCM: On most of these GM trucks and SUVs, you’ll find the BCM mounted to a bracket to the left of the steering column, behind the lower dash panel.
- Remove Trim Panels: Carefully remove any lower dash panels or knee bolsters needed to access the module.
- Disconnect and Remove: Unplug the several large electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt the module from its bracket.
- Install the New Module: Bolt the new, pre-programmed BCM into place. Firmly reconnect all electrical connectors, ensuring they click and lock securely.
- Reconnect and Test: Reinstall the trim panels, reconnect the negative battery terminal, and start the vehicle. Test all functions like lights, windows, locks, and wipers.
Important Post-Installation Note: In some cases, additional steps may be needed. If your airbag light is on, a professional scan tool is required to perform the “Setup SDM Primary Key in BCM” procedure. A “Brake Pedal Position Relearn” may also be necessary. These are standard procedures for this type of repair.
Verified Fitment for Your GM Truck or SUV
This module is a guaranteed fit for a wide range of General Motors vehicles. It directly replaces part numbers 22846364, 22737275, and 22846365. Please verify your vehicle is on the list below:
- ✔ 2012-2013 Chevrolet Avalanche 1500
- ✔ 2012-2013 Chevrolet Silverado 1500
- ✔ 2012-2014 Chevrolet Silverado 2500/3500
- ✔ 2012-2014 Chevrolet Suburban 1500/2500
- ✔ 2012-2014 Chevrolet Tahoe
- ✔ 2012-2013 GMC Sierra 1500
- ✔ 2012-2014 GMC Sierra 2500/3500 (including Denali)
- ✔ 2012-2014 GMC Yukon & Yukon XL (1500/2500)
- ✔ 2012-2014 Cadillac Escalade, ESV, EXT
Frequently Asked Questions
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Is this part truly plug-and-play?
Yes, it comes programmed to your VIN. However, as with any BCM replacement, some models may require a simple Brake Pedal Position Relearn or an Airbag System Sync if the warning light appears. This requires a capable bidirectional scan tool.
What information do you need from me?
After you place your order, you must provide us with your vehicle’s 17-digit VIN. We cannot program and ship the module without it.
Will this fix my “Service StabiliTrak” message?
A failing BCM is a very common cause of false “Service StabiliTrak” and “Service Traction Control” warnings because it disrupts communication with the brake and steering sensors. While not a guarantee for every case, it often resolves these issues.
How do I know if my BCM is the problem?
The most reliable way is with a professional diagnosis. However, if you have multiple, unrelated electrical issues like the ones listed above, the BCM is the most probable cause. In my shop, about 80% of vehicles with these symptoms need a BCM.