Tired of Electrical Gremlins in Your GM Truck?
As a technician with over two decades of experience, I’ve seen it all. Flickering dashboard lights, power windows with a mind of their own, door locks that don’t respond, or a truck that simply refuses to start for no apparent reason. These baffling issues often point to one culprit: a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it starts to go, it can cause a cascade of frustrating and unpredictable problems. Don’t let these electrical headaches keep you off the road. This is your reliable, straightforward solution.
The Plug-and-Play Solution You’ve Been Searching For
Forget about expensive dealership visits and the hassle of towing your truck just for programming. We take care of the hard part for you. This BCM isn’t just a replacement part; it’s a complete solution. We flash the module with the latest official GM software, programming it specifically to your truck’s Vehicle Identification Number (VIN) before it even leaves our facility. This means that when it arrives at your door, it’s ready for installation. This is the most efficient way to restore full functionality to your vehicle’s electronics, saving you significant time and money.
From the Diagnostic Bay: The Case of the Haunted Sierra
A customer brought in his 2013 Sierra 1500 with a list of complaints that sounded like something out of a ghost story. The radio would turn on and off, the interior lights would pulse randomly, and the security light was always on. He’d already replaced the battery and checked the grounds. After hooking up my scan tool, I saw a slew of ‘U’ codes—communication errors—all pointing back to the BCM. Instead of a complex wiring chase, the fix was a new, properly programmed BCM. We installed one just like this, and within an hour, all the ‘hauntings’ were gone. It’s a common failure, and a pre-programmed module is the fastest path to a solid repair.
Is Your Truck Exhibiting These BCM Failure Signs?
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Dashboard warning lights (like Security or Airbag) staying on.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The horn sounding off unexpectedly.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss, such as U0100, U0140, or other U-series codes.
- ✔ Issues with the keyless entry or remote start system.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for a confident DIYer or any professional technician. It’s located under the steering column on the driver’s side.
- 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: Remove the lower dash panel beneath the steering wheel to gain access. The BCM is a black plastic box with several large electrical connectors.
- Swap the Module: Carefully disconnect all electrical harnesses from the old BCM. They have release tabs that need to be pressed. Unbolt the module from its mounting bracket and remove it.
- Install the New BCM: Mount your new, pre-programmed BCM in place and securely reconnect all the electrical harnesses. You should hear a ‘click’ as they lock in.
- Power Up: Re-install the dash panel and reconnect the negative battery terminal. Your installation is complete.
Important Post-Installation Information
While our VIN programming handles the majority of the setup, some vehicles may require additional steps after installation for full system synchronization. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed using a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light operation and to prevent issues with the traction control system.
- No Core Charge: You are not required to return your old BCM. There is no core charge associated with this purchase.
Disclaimer: Vehicle systems can vary. We always recommend consulting a factory service manual or a certified technician if you are unsure about any procedure.
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct replacement for part numbers 22846364, 22737275, and 22846365. It is guaranteed to fit the following vehicles:
- 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
- 2012-2014 Cadillac Escalade, ESV, EXT
- 2012-2013 GMC Sierra 1500 Pickup
- 2012-2014 GMC Sierra 2500/3500 Pickup
- 2012-2014 GMC Sierra Denali 1500/2500/3500
- 2012-2014 GMC Yukon
- 2012-2014 GMC Yukon XL 1500/2500
Frequently Asked Questions
What does VIN programming mean?
It means we load your vehicle’s specific software and factory options into the BCM using your VIN. This ensures the module communicates correctly with your truck’s other systems, eliminating the need for expensive dealer programming.
Do I have to send my old BCM back?
No. This product comes with no core charge. You can keep your original part.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship the module until we receive this information to program it for you.
What happens if my airbag light comes on after installation?
This is a normal possibility. The new BCM needs to be electronically ‘introduced’ to the airbag module. A mechanic with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is this a difficult part to install myself?
For someone with basic mechanical skills and tools, it’s very manageable. The module is located under the driver’s side dash and is held in by a few bolts. The main challenge is accessing it, but no special tools are required for the swap itself.