Is Your GM Vehicle Acting Possessed? It Could Be The BCM.
If you’re dealing with a frustrating array of electrical gremlins in your Chevrolet, GMC, Cadillac, or Buick, the Body Control Module (BCM) is the most likely culprit. The BCM acts as the central command center for your vehicle’s body electronics, controlling everything from your power windows and locks to your interior lights and security system. When it begins to fail, it can create a cascade of bizarre and unpredictable problems that can be difficult to diagnose.
From the Diagnostic Bay
We recently had a 2015 Chevy Traverse in the shop with the strangest symptoms. The radio would turn on by itself, the dome lights flickered intermittently, and the power liftgate had a mind of its own. The owner had already replaced the battery and checked every fuse. A quick scan with a professional tool showed multiple communication errors all pointing back to one component – a failing BCM. Instead of a costly trip to the dealership for diagnostics and programming, we installed a pre-programmed module like this one. The vehicle was back to normal in under an hour, saving the customer hundreds in diagnostic and programming fees.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The security system acting up, causing alarm issues or no-start conditions.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Inaccurate gauge readings or warning lights on the dash (like the airbag light).
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Problems with the keyless entry or remote start systems.
The Plug-and-Play Solution: A Pre-Programmed GM Body Control Module 22820314
Don’t let a faulty BCM keep your vehicle off the road or drain your wallet at the dealership. This replacement Body Control Module, compatible with part numbers 22820314 and 22915542, is the simple, effective solution. We take the hassle out of the repair by programming the module specifically to your vehicle’s VIN before we ship it. This ensures that it communicates perfectly with your vehicle’s existing systems right out of the box. You get a fully functional component loaded with the latest GM software updates, eliminating the need for expensive dealer-only tools and programming sessions.
Installation and Post-Install Procedures
Installation is straightforward for anyone with basic mechanical skills. The BCM is typically located under the driver’s side dashboard. After swapping the module, there are a couple of procedures that may be required depending on your specific vehicle’s configuration.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper brake light operation and to keep the traction control system functioning correctly.
Note: While many installations are seamless, specific procedures can vary. We always recommend consulting a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What information do you need to program this GM Body Control Module 22820314?
All we need is your vehicle’s 17-digit VIN (Vehicle Identification Number). Please provide it during checkout or send it to us in a message after your purchase. This allows us to flash the module with the correct software and vehicle-specific options.
Is this a simple plug-and-play installation?
Yes, for the most part. Because we program it to your VIN, it eliminates the most difficult step. You simply install the module, and in many cases, no further action is needed. However, as noted, some vehicles may require an airbag sync or brake pedal relearn procedure with a scan tool.
Will this fix my specific electrical problem?
This module will correct issues directly caused by a faulty BCM. If you are experiencing several of the symptoms listed above, a failing BCM is the most likely cause. Proper vehicle diagnosis is always recommended to confirm the source of the problem.
Where is the BCM located on my vehicle?
On most of the listed models like the Traverse, Acadia, and Impala, the BCM is located on the left-hand (driver’s) side of the dashboard. On van models like the Express and Savana, it is typically found in the center dash area.
Do I need to return my old BCM?
No, there is no core charge for this part. You can keep your original module.