Restore Full Electrical Function to Your GM Vehicle
Is your Savana, Express, Impala, or other GM vehicle suffering from bizarre and frustrating electrical issues? The Body Control Module (BCM) is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of problems that are often difficult to diagnose. This genuine GM BCM, part number 22915542 (also compatible with 22820314), is the definitive solution to restore your vehicle’s functionality and reliability. We take the guesswork and high dealership costs out of the equation by pre-programming the module to your specific Vehicle Identification Number (VIN) before it ships. This ensures a seamless installation process, getting you back on the road quickly and safely.
Common Symptoms of a Failing BCM
A faulty Body Control Module can manifest in numerous ways, often making you think multiple components have failed at once. If you’re experiencing any of the following, a failing BCM is the likely culprit:
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting (lights staying on or not turning on).
- ✔ Malfunctioning windshield wipers or horn.
- ✔ False warnings on the dashboard, such as the security or airbag light.
- ✔ Key fob not working or intermittent remote start issues.
- ✔ A no-start condition where the engine cranks but won’t fire due to security system faults.
- ✔ Climate control system behaving unpredictably.
From the Diagnostic Bay
We had a 2015 Express 2500 work van come into the shop with a driver’s side power window that wouldn’t go down. The owner had already replaced the window switch and the motor, but the problem persisted. He was convinced it was a wiring issue. After a quick scan, we saw communication fault codes with the BCM. Instead of spending hours tracing wires, we swapped in a VIN-programmed BCM. The window, along with an intermittent dome light issue he hadn’t even mentioned, was fixed in under 30 minutes. It’s a classic case where the BCM was the hidden root cause, and a direct replacement saved the customer hundreds in diagnostic and labor fees.
The Pre-Programmed 2013-2019 Savana BCM Solution
Replacing a BCM isn’t just a matter of swapping parts. A new module from a dealership must be installed and then programmed using specialized, expensive equipment. Our service eliminates this step entirely. When you order from us, you provide your vehicle’s VIN. Our technicians then flash the module with the latest, most stable software directly from GM, ensuring it is perfectly matched to your vehicle’s specific options and configuration. This makes the installation process as close to plug-and-play as possible.
Installation and Post-Install Procedures
For most Savana and Express vans, the BCM is located in the center dash area. While the physical installation is straightforward for a skilled DIYer or any professional technician, some vehicles may require simple electronic relearn procedures after the new module is connected. Please be aware of the following potential steps:
- Airbag System Sync: In some cases, the new BCM may need to be synchronized with the airbag’s Sensing and Diagnostic Module (SDM). If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is only required if the light appears.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration might be necessary. This is a simple procedure that can be performed with a compatible diagnostic tool.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What information do I need to provide for programming?
After you place your order, you must provide us with your vehicle’s 17-digit VIN. This is crucial for us to load the correct software and ensure compatibility with your specific vehicle options.
Is this a difficult part to install myself?
The physical replacement is generally straightforward for those with mechanical experience. It involves accessing the module (usually behind the dash), disconnecting the battery, and swapping the electrical connectors. The main challenge is the potential need for post-install relearn procedures, which may require a professional scan tool.
Will this BCM 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, the BCM is the most likely cause. However, it will not fix problems related to other failed components, such as a bad window motor or faulty wiring.
What happens if my airbag light is on after installation?
If the airbag light illuminates, it means the BCM needs to be electronically synced with the airbag system module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which must be done by a repair shop with a professional-grade diagnostic tool.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.