Is Your GM Vehicle Experiencing Strange Electrical Issues?
The Body Control Module, or BCM, is the central command center for your vehicle’s body electronics. It manages a wide array of functions, from your power windows and door locks to the interior lights, security system, and even the warning chimes. When the BCM starts to fail in your GMC Savana, Chevy Express, or other compatible GM vehicle, it can cause a cascade of confusing and frustrating problems that may seem unrelated. This isn’t just an inconvenience; a faulty BCM can affect vehicle security and safety systems.
Instead of a costly trip to the dealership for diagnostics and programming, we offer a direct, reliable solution. This Body Control Module, part number 22915542 (also replaces 22820314), is professionally programmed to your vehicle’s specific VIN before it ships. This ensures a straightforward installation process and restores the proper function of your vehicle’s electronics with the latest software updates from GM.
From the Diagnostic Bay
We had a 2015 Chevy Express work van come in with a complaint that was baffling the owner. The radio would randomly turn off, the dome light would stay on, and occasionally the power locks wouldn’t respond. The battery was also dying overnight. After checking for obvious wiring issues, we connected our diagnostic tool and found multiple communication errors pointing towards the BCM. A failing BCM was causing network noise, leading to these ghost-like problems. Installing a VIN-programmed module like this one resolved all issues in one go, saving the owner from replacing other perfectly good components and getting their van back in service immediately.
Common Symptoms of a Failing BCM
If you’re experiencing any of the following, a failing BCM could be the culprit. A proper diagnosis is always recommended, but these are hallmark signs:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on or not turning on.
- ✔ The anti-theft or security system light is illuminated, preventing the engine from starting.
- ✔ Instrument cluster gauges behaving strangely or warning lights appearing for no reason.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ HVAC/Climate controls are unresponsive.
Your Direct Solution: The 2013-2019 Savana 3500 BCM
This isn’t just a replacement part; it’s a complete service. We take the guesswork and dealership hassle out of the equation. By providing us with your VIN during checkout, you receive a module that is loaded with the correct software and calibration files for your specific vehicle’s options and features. This makes the installation process as simple as possible.
Installation and Post-Install Procedures
Installation typically involves locating the original BCM (often under the driver’s side dash), disconnecting the battery, swapping the electrical connectors to the new module, and reconnecting the battery. While our programming makes this a near plug-and-play process, some vehicles may require additional steps after installation:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool must be used to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and to satisfy the traction control system.
Please note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your BCM without it.
Is this a plug-and-play part?
Because we program the module to your VIN, it is designed to be as close to plug-and-play as possible. However, as noted above, some vehicles may require a simple relearn procedure for the airbag or brake systems, which requires a professional scan tool.
Do I need to return my old BCM?
No. This purchase has no core charge. You can keep your original module.
Where is the BCM located on my vehicle?
On most compatible models like the Savana, Express, and Traverse, the BCM is located under the driver’s side of the dashboard, to the left of the steering column.
Will this BCM fit my vehicle?
This module fits a wide range of GM vehicles, including the Savana, Express, Impala, Acadia, Traverse, Enclave, CTS, and Captiva Sport within the specified model years. Please verify your part number (22915542 or 22820314) and check the detailed fitment list to ensure compatibility.