Are you chasing down bizarre electrical problems in your GM truck or SUV? One minute the radio works, the next it’s dead. The dome lights flicker, the power windows have a mind of their own, or you’re seeing strange warning messages on the dash. Before you start tearing apart wiring harnesses, the culprit is often the Body Control Module (BCM)—the central command center for your vehicle’s body electronics.
As a technician with over two decades of experience, I’ve seen how a failing BCM can turn a reliable truck into a source of constant frustration. This isn’t just an inconvenience; it can affect safety systems like your exterior lighting and anti-theft system. The typical fix involves a costly trip to the dealership for the part, installation, and mandatory programming. We eliminate that hassle.
This is a direct-fit replacement Body Control Module for your 2012-2013 Silverado 1500 Pickup and other compatible GM vehicles. The best part? We program it to your vehicle’s specific VIN before it ships. This means no expensive dealer tools or programming sessions are required on your end. It arrives ready for a straightforward installation, loaded with the latest GM software updates to ensure peak performance and reliability.
From the Diagnostic Bay
I remember a 2013 Sierra 2500 that came into the shop with a laundry list of complaints. The owner said his turn signals would work intermittently, the horn would go off randomly, and the truck sometimes wouldn’t start, showing a “Service Theft Deterrent System” message. He’d already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a dozen communication codes (U-codes) pointing to a network failure. A quick check under the dash revealed the BCM had signs of water intrusion from a leaky windshield cowl—a common point of failure. By installing a pre-programmed BCM like this one, we had him back on the road the same day, saving him from a multi-day wait and a huge bill from the dealer.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or remote keyless entry not working correctly.
- ✔ The security or anti-theft system light is on, preventing the engine from starting.
- ✔ Warning messages like “Service StabiliTrak” or “Service Airbag” appearing on the dash.
- ✔ The radio or infotainment system works intermittently or not at all.
- ✔ Communication failure codes (e.g., U0140, U0155) stored in other modules.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to power down.
- ✔ Locate the BCM: On most of these GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once unplugged, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting the engine) and test all body functions: lights, windows, locks, radio, etc.
Important Post-Installation Notes
While this module is programmed for your VIN, certain vehicle systems may require a ‘handshake’ procedure after installation. This is normal and can often be done with a high-end scan tool. Please note:
- Airbag System Sync: If the airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag module.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light and traction control operation.
- No Core Charge: You are not required to send your old BCM back to us.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a professional technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM, part number 22737275, is a direct replacement for part numbers 22846365 and 22846364. It is guaranteed to fit the following models:
- 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 & Denali (2012-2014)
- GMC Yukon & Yukon XL 1500/2500 (2012-2014)
- Cadillac Escalade, ESV, EXT (2012-2014)
Important: After purchase, please send us a message with your 17-digit VIN to ensure we can program the module correctly for your vehicle’s specific options.
Frequently Asked Questions
Do I need to program this BCM?
No. We handle all the programming for you before we ship the part. Just provide your vehicle’s VIN at checkout, and it will arrive ready to install.
Where is the BCM located on my 2012 Silverado?
The Body Control Module is typically found under the driver’s side dashboard, attached to a bracket near the steering column. You will likely need to remove the lower plastic dash panel to see it.
My original part number is 22846365. Will this work?
Yes, this BCM is a direct, interchangeable replacement for part numbers 22737275, 22846365, and 22846364. It will function identically.
What tools are required for this job?
Basic hand tools are all that’s needed for the physical replacement, typically a socket set for the battery terminal and module mounting bolts, and a trim removal tool to safely take off dash panels.
What happens if the airbag light comes on after I install it?
This can happen occasionally. It means the new BCM needs to be electronically introduced to the airbag module (SDM). A professional mechanic with a compatible scan tool can perform the ‘Setup SDM Primary Key’ procedure in a few minutes to resolve this.