If you’re dealing with bizarre electrical problems in your GM truck or SUV, you’ve come to the right place. As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a reliable vehicle into a source of constant frustration. Flickering lights, malfunctioning power windows and locks, a security system that acts up, or even a no-start condition—these are all classic signs. The BCM is the central hub for your vehicle’s body electronics, and when it fails, chaos ensues.
This isn’t just a replacement part; it’s a complete solution. We take the hassle out of the repair by programming this module to your vehicle’s specific VIN before we ship it. This means you can bypass the expensive trip to the dealership for programming. You get a component loaded with the latest GM software, ready for a straightforward installation, getting you back on the road with confidence.
A Technician’s Notebook
I remember a 2013 Silverado 2500 that came into my bay with a complaint of a parasitic battery drain the owner couldn’t track down. Every morning, the battery was dead. He’d already replaced the battery and alternator. After hooking up my multimeter, I saw a significant draw. By pulling fuses one by one, I isolated the circuit to the BCM. The internal circuits were failing, keeping certain accessories powered on even with the key off. Swapping in a VIN-programmed BCM like this one not only solved the battery drain but also fixed his intermittently working dome light—a problem he’d forgotten to even mention. It’s often the central fix for multiple, seemingly unrelated issues.
Is Your Truck Exhibiting These BCM Failure Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security or anti-theft light flashing, preventing the engine from starting.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Diagnostic trouble codes (DTCs) related to communication, such as U0140 (Lost Communication With Body Control Module).
- ✔ Wipers activating on their own or not responding to the switch.
Your Straightforward BCM Installation Guide
For the confident DIYer or professional technician, swapping the BCM is a manageable job. It’s typically 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 starting any electrical work.
- Locate the Module: Find the BCM under the dashboard. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New BCM: Mount the new, pre-programmed module in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Power Up: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions (lights, locks, windows, etc.) to confirm the repair.
Important Post-Installation Information
Our VIN-programming handles the majority of the setup, but some GM vehicles may require additional steps after installation. Please be aware of the following possibilities:
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade diagnostic tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
- No Core Charge: We make it simple. There is no core charge for this part. You can keep your old module, eliminating the hassle and expense of a core return.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician for procedures specific to your vehicle.
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 confirmed to fit a wide range of GM models. Please verify your vehicle is on the list below:
- Cadillac Escalade / ESV / EXT: 2012-2014
- 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 (including Denali): 2012-2014
- GMC Yukon / Yukon XL 1500 / Yukon XL 2500: 2012-2014
Frequently Asked Questions
Frequently Asked Questions
Do I need to send you my VIN?
Yes. After you place your order, you must provide us with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we have programmed it with your vehicle’s specific data.
Is this a difficult part to install myself?
The physical installation is straightforward for someone with basic mechanical skills. It involves removing a dash panel and swapping connectors. However, be aware that some vehicles may require post-installation relearn procedures with a professional scan tool.
Will this fix my ‘Service StabiliTrak’ message?
While a failing BCM can cause various warning messages, the ‘Service StabiliTrak’ light is often linked to other sensors like the wheel speed or steering angle sensor. However, if it’s accompanied by other electrical BCM symptoms, this module could be the root cause.
Do I need to return my old BCM?
No. We do not require a core return for this part. There is no core charge, which saves you time and money.
What if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). A repair shop with a capable scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.