Are you battling frustrating and unpredictable electrical problems in your 2012-2014 Chevrolet Suburban 1500? When power windows, door locks, interior lights, or even the security system start acting on their own, the root cause is often a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can create a cascade of issues that are difficult to diagnose. This module is the direct, reliable solution to restore full functionality and peace of mind.
We take the guesswork and high costs out of the repair. Unlike a trip to the dealership, which involves expensive programming fees and vehicle downtime, this BCM arrives at your door pre-programmed to your specific vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the module with the latest GM software updates. This ensures it communicates perfectly with your Suburban’s existing systems right out of the box, making the installation process as straightforward as possible.
A Technician’s Notebook
I remember a 2013 Suburban that came into my bay with a list of symptoms that seemed completely unrelated. The radio would turn on and off, the driver’s side power window wouldn’t work, and the anti-theft light was flashing intermittently, sometimes preventing the engine from starting. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a dozen communication loss codes (U-codes) pointing back to one culprit: the BCM. It wasn’t sending or receiving signals correctly, causing chaos across the vehicle’s network. Installing a VIN-programmed BCM like this one resolved every single issue in under an hour. It’s a classic case of one part causing many headaches.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a failing BCM is the likely cause. Replacing it can solve persistent electrical gremlins and prevent a no-start situation.
- ✔ Erratic or non-functional power windows and door locks.
- ✔ Interior or exterior lights that stay on, flicker, or won’t turn on at all.
- ✔ The security system light flashing, preventing the engine from cranking (Passlock issues).
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication loss, such as U0140, U0155, or U0164.
- ✔ Wipers activating on their own or not responding to the switch.
A Straightforward Guide to BCM Installation
This module is designed for a direct-fit replacement. While professional installation is always an option, a confident DIYer can complete this job with basic tools.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On your Suburban, the Body Control Module is typically 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 disconnected, unbolt or unclip the old 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 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, wipers, and radio—to confirm proper operation.
Post-Installation Procedures & Notes
Because this BCM is pre-programmed, most functions will work immediately. However, depending on your vehicle’s specific configuration, a couple of quick relearn procedures may be needed. There is no core charge for this part, so you can keep your old module.
- ✔ Airbag System Sync: If the airbag warning light is illuminated after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the new BCM with the airbag system and can be performed with a compatible professional scan tool.
- ✔ Brake Pedal Position Relearn: In some cases, a brake pedal position sensor relearn may be necessary to ensure the brake lights and traction control system function correctly.
- ✔ Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for part number 22846365 and is also compatible with part numbers 22737275 and 22846364. It is guaranteed to fit the following GM trucks and SUVs:
- ✔ 2012-2014 Cadillac Escalade, Escalade ESV, Escalade EXT
- ✔ 2012-2013 Chevrolet Avalanche 1500
- ✔ 2012-2013 Chevrolet Silverado 1500 / GMC Sierra 1500
- ✔ 2012-2014 Chevrolet Silverado 2500/3500 / GMC Sierra 2500/3500
- ✔ 2012-2014 Chevrolet Suburban 1500 / GMC Yukon XL 1500
- ✔ 2012-2013 Chevrolet Suburban 2500 / GMC Yukon XL 2500
- ✔ 2012-2014 Chevrolet Tahoe / GMC Yukon
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that acts as the central command for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and more.
Is this BCM really plug-and-play?
Yes, it is! We program the module to your vehicle’s VIN before shipping. This eliminates the need for expensive dealer programming. In some rare cases, minor relearn procedures for the airbag or brake sensor may be needed, which can be done with a bi-directional scan tool.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information for programming.
Do I need to return my old BCM?
No. There is absolutely no core charge for this part. You can keep your old module, recycle it, or dispose of it as you see fit.
What if my part number doesn’t match 22846365 exactly?
This module is also a direct replacement for part numbers 22737275 and 22846364. As long as your vehicle is on the compatibility list, this module will work correctly.