Is your Chevrolet Express or GMC Savana van plagued by bizarre electrical problems? Do your power windows have a mind of their own, your interior lights flicker, or does your security system act up unexpectedly? These are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it malfunctions, it can cause a cascade of frustrating and difficult-to-diagnose issues. This pre-programmed BCM, part number 22820314, is the definitive solution to restore full functionality and reliability to your vehicle’s systems.
From the Diagnostic Bay
We had a 2015 Express 3500 work van come in that was driving the owner crazy. The horn would randomly go off, the radio would shut down, and the battery would be dead every other morning. The owner had already replaced the battery and alternator. We scanned the vehicle and found a dozen communication error codes, all pointing back to the BCM. Instead of a complex and costly diagnostic path, we knew the symptoms pointed to a classic BCM failure. We installed a VIN-programmed module just like this one, and all the ghost-like electrical issues vanished instantly. It saved the owner hundreds in diagnostic fees and got his work van back on the road the same day.
Symptoms of a Failing Express 3500 Body Control Module
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your BCM is the culprit. This module is designed to correct these common problems and get your vehicle operating as it should.
- ✔ Intermittent or non-functional power windows, door locks, and mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning instrument cluster gauges or warning lights.
- ✔ Security system issues, including random alarm activation or key fob recognition problems.
- ✔ Unexplained battery drain that leaves you with a dead battery.
- ✔ Problems with the HVAC (heating and air conditioning) controls.
- ✔ Communication errors with other vehicle modules, often flagged by a professional scan tool.
The Plug-and-Play Advantage
Traditionally, replacing a BCM was a job reserved for the dealership. It required expensive, specialized tools to program the new module to your vehicle’s specific Vehicle Identification Number (VIN) and factory options. Our service eliminates that hassle and expense. We take your VIN, flash this BCM with the latest, most stable software directly from GM, and ship it to you ready for installation. This means no towing, no dealership appointment, and no surprise programming fees. You receive a part that is truly plug-and-play for your specific vehicle.
Installation and Post-Install Considerations
Physically swapping the BCM is generally straightforward. On most Express and Savana vans, it is located in the center dash area. However, after the new module is installed, a couple of additional steps, known as relearn procedures, may be necessary to ensure all systems communicate correctly.
- Airbag System Sync: In some cases, the new BCM may need to be synchronized with the airbag system’s SDM (Sensing and Diagnostic Module). If your airbag warning light is illuminated after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a quick process for any competent repair shop.
- Brake Pedal Position Relearn: To ensure proper brake light operation and stability control function, a brake pedal position sensor recalibration might be needed. This also requires a diagnostic tool and is a common procedure after replacing major electronic components.
We handle the critical programming for you. These minor, potential follow-up steps ensure all of your vehicle’s safety and operational systems are perfectly aligned with the new module. And with our no core charge policy, you can keep your original module without the hassle of shipping it back.
Frequently Asked Questions
Do I need to send you my old BCM?
No. This purchase has no core charge. You can keep your original part, which can be helpful for reference or if you ever need to revert to the original state for any reason.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program or ship your module until we receive this information.
Is this a simple DIY installation?
For those with mechanical experience, the physical replacement is manageable. However, please be aware that post-installation procedures like an airbag sync or brake pedal relearn may be required and necessitate a professional scan tool.
What if my part number is 22915542?
This module, 22820314, is a direct, compatible replacement for part number 22915542. We will program it to function perfectly in your vehicle, regardless of which of these two numbers was originally installed.
Will this fix my specific electrical problem?
This BCM will correct issues directly caused by a faulty module. While the symptoms we’ve listed are strong indicators, we always recommend a proper diagnosis by a qualified technician to confirm the BCM is the root cause of your problem before ordering.