Restore Full Electronic Functionality to Your GM Vehicle
Is your Chevrolet Express, GMC Savana, or other compatible GM vehicle suffering from bizarre electrical problems? 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 frustrating issues. This replacement BCM, part number 22915542 (also interchangeable with 22820314), is the definitive solution to restore control over your vehicle’s essential functions. We take the hassle out of the repair by programming the module to your vehicle’s specific VIN before it ships, ensuring a straightforward installation process without a mandatory trip to the dealership.
Common Symptoms of a Failing GM Body Control Module
- ✔ Erratic or completely non-functional power windows, door locks, or mirrors.
- ✔ Interior dome lights, headlights, or taillights staying on, flickering, or not working at all.
- ✔ The vehicle’s security system malfunctioning, causing false alarms or preventing the engine from starting.
- ✔ Horn honking randomly or failing to work when needed.
- ✔ Windshield wipers activating on their own or not responding to the switch.
- ✔ Unexplained warning lights illuminating on the dashboard (e.g., ABS, Airbag, Traction Control).
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up due to security system confusion.
From the Diagnostic Bay
We had a 2015 Express 3500 work van come in with a complaint of the battery dying overnight. The driver swore all the lights were off. After charging the battery, we performed a parasitic draw test and found a significant current draw. By pulling fuses one by one, we isolated the circuit to the BCM. The module was keeping the interior lighting relay energized even when the van was off, draining the battery. A new, programmed BCM solved the issue completely. It’s a classic example of how a faulty BCM can cause problems that don’t seem directly related to its main functions.
Why Choose Our Programmed Express 3500 Body Control Module?
Replacing a BCM isn’t just about swapping hardware. The module must be correctly configured to communicate with the other computers in your vehicle. Our service eliminates the most difficult step. By providing your VIN during checkout, you receive a module that is loaded with the latest GM software specific to your vehicle’s options and configuration. This plug-and-play approach makes for a much simpler repair, saving you hundreds in dealership programming fees and vehicle downtime. This is the most efficient way to get your Express 3500 Body Control Module replaced and your van back in service.
Installation and Required Procedures
Installation is generally straightforward. On Express and Savana vans, the BCM is typically located in the center dash area. While the physical swap is simple, some post-installation electronic procedures may be necessary depending on your specific vehicle. Please be aware of the following:
- No Core Charge: You are not required to return your old module, saving you time and return shipping costs.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper brake light operation and to prevent issues with the traction control system.
We always recommend consulting a factory service manual or a qualified technician if you are unsure about performing these procedures. Getting your vehicle’s electronics working correctly with a new Express 3500 Body Control Module is our top priority.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific features and options. This ensures all systems communicate correctly and function as they did from the factory, making the installation process much smoother.
Is this a plug-and-play part?
Yes, this BCM is pre-programmed to your VIN, making it a plug-and-play installation for most functions. However, as noted, some vehicles may require additional procedures like an airbag system sync or brake pedal position relearn, which need a professional scan tool.
Will this BCM fit vehicles other than the Express 3500?
Absolutely. This BCM, part number 22915542, fits a wide range of GM vehicles including the GMC Acadia, Chevy Traverse, Cadillac CTS, Chevy Impala, and other Express/Savana van models. Please verify your original part number to ensure compatibility.
What happens if I don’t perform the post-install procedures?
If your vehicle requires them, not performing the procedures can lead to persistent issues. For example, skipping the airbag sync will leave the airbag warning light on, and ignoring the brake pedal relearn could result in incorrect brake light operation or traction control system errors.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module, which can be helpful for reference or if you ever need to revert to the original hardware for any reason.