Is Your GM Truck or SUV Plagued by Baffling Electrical Issues?
If you’re dealing with flickering lights, malfunctioning power windows, or a persistent “Service Theft Deterrent System” message on your dash, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your vehicle’s body electronics, managing everything from your interior lights and power locks to the security system and HVAC controls. When it begins to fail, it can create a cascade of frustrating and seemingly unrelated problems that can be difficult to diagnose.
This is a direct-fit replacement Body Control Module, part number 22846365, for a wide range of 2012-2014 GM trucks and SUVs. The biggest challenge with replacing a BCM is the need for expensive dealership programming. We solve that problem for you. Simply provide your vehicle’s VIN during checkout, and our technicians will program the module with the latest GM software specific to your vehicle. It arrives at your door ready for installation, saving you time, money, and a trip to the dealer.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights)
- ✔ Power windows, door locks, or mirrors working intermittently or not at all
- ✔ “Service Theft Deterrent System” or other security-related warnings on the instrument cluster
- ✔ The engine cranks but refuses to start, or experiences intermittent no-start conditions
- ✔ HVAC (heater and A/C) controls or blower motor behaving erratically
- ✔ Horn honking unexpectedly or not working when pressed
- ✔ False warning lights appearing on the dashboard
Your Plug-and-Play Solution: The 2012-2014 Sierra Body Control Module
Don’t let a faulty BCM compromise your vehicle’s functionality and safety. This replacement module restores the precise control over your vehicle’s electronics that you expect from the factory. By providing us with your VIN, you ensure that the module you receive is perfectly matched to your vehicle’s specific options and configuration. This is the most efficient and reliable way to solve your BCM-related issues and get your truck or SUV back to 100%.
Installation and Post-Installation Notes
The BCM is typically located under the driver’s side of the dashboard, near the steering column. While the physical installation is straightforward for a DIYer with basic tools, some vehicles may require post-installation electronic procedures to sync the new module with other systems. These may include:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a “Setup SDM Primary Key in BCM” procedure must be performed with a compatible high-end scan tool. This ensures the new BCM and the airbag system can communicate correctly.
- Brake Pedal Position Relearn: Some models may require a recalibration of the brake pedal position sensor to ensure proper function of the brake lights and stability control systems.
We always recommend consulting a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What does the Body Control Module (BCM) actually do?
The BCM is a computer that acts as the central hub for your vehicle’s body electronics. It reads inputs from switches (like power window or headlight switches) and sensors, and then sends commands to operate those components, as well as managing the security system, keyless entry, and more.
Do I need to take my truck to the dealership for programming after installing this?
No. This is the primary benefit of our service. We program the BCM to your vehicle’s specific VIN before we ship it to you. This eliminates the need for any additional programming, saving you hundreds of dollars and a trip to the dealer.
Where is the BCM located on my 2013 Sierra or Silverado?
On most 2012-2014 GM trucks and SUVs covered by this part, the BCM is located under the driver’s side dashboard, typically to the left of the steering column.
What if my airbag light comes on after installation?
This can happen because the new BCM needs to be electronically introduced to the airbag’s Sensing and Diagnostic Module (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
What part numbers does this module replace?
This BCM is a direct replacement for part numbers 22846365, 22737275, and 22846364.