Is Your Chevy Express Van Plagued with Electrical Gremlins?
If you’re dealing with bizarre and frustrating electrical issues in your 2013-2018 Chevrolet Express or GMC Savana van, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your van’s body electronics, managing everything from your power windows and door locks to the interior lights, security system, and even communication with other critical modules. When it starts to fail, it can create a cascade of problems that are often difficult to diagnose.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system alarm sounding randomly or the key fob failing to work.
- ✔ Strange behavior from the instrument cluster, such as flickering warning lights or inaccurate gauges.
- ✔ HVAC or climate control system malfunctions.
- ✔ Warning messages on the dash like “Service StabiliTrak” or “Service Airbag.”
- ✔ A complete no-start condition due to the anti-theft system being incorrectly activated.
The Plug-and-Play Solution: A Programmed 2013-2018 Express 2500 BCM
Don’t let a faulty module keep your work van off the road. This replacement Body Control Module, part number 22820314 (also compatible with 22915542), is the definitive solution to restore your vehicle’s electronic functions. What sets our module apart is our professional programming service. Before we ship the part, we flash it with the latest GM-certified software and program it specifically to your vehicle’s unique Vehicle Identification Number (VIN). This critical step ensures the module communicates perfectly with your van’s existing systems, eliminating the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 2015 Express 2500 in the shop that was driving the owner crazy. The radio would turn on by itself, the dome lights would flicker while driving, and occasionally the power locks wouldn’t respond. The symptoms were all over the place. After hours of chasing wires, we checked the BCM. A previous windshield replacement had a small, almost invisible leak at the top corner, allowing water to drip down the A-pillar and directly onto the BCM’s connectors. The corrosion was minimal but enough to cause intermittent short circuits, creating a host of phantom problems. Replacing the BCM and fixing the leak solved everything. It’s a powerful reminder that the BCM is sensitive and its location can make it vulnerable to external factors.
Installation and Post-Installation Procedures
Physically installing the BCM is generally straightforward for those with mechanical experience. It is typically located in the center dash area. Once the new module is installed, your vehicle should start and most functions will be restored immediately. However, in some cases, a couple of simple relearn procedures may be necessary to fully sync the new BCM with other vehicle systems.
Important Note: These procedures may require a professional bidirectional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called “Setup SDM Primary Key in BCM” must be performed. This syncs the new BCM with the airbag’s Sensing and Diagnostic Module (SDM), ensuring the safety system is fully operational.
- Brake Pedal Position Relearn: To ensure proper brake light operation and StabiliTrak system performance, a brake pedal position sensor recalibration might be required. This is a quick procedure that ensures the new BCM knows the exact position of the brake pedal.
We make the process simple: provide your VIN during checkout, and we handle the complex programming. You receive a part that is ready for installation, saving you time and money. With no core charge, you can keep your old module without the hassle of shipping it back.
Frequently Asked Questions
Do I need to program this 2013-2018 Express 2500 BCM?
No. We program the module to your vehicle’s VIN before shipping. It arrives ready to be installed, eliminating the need for a dealership visit for programming.
Where is the BCM located on my Express or Savana van?
The Body Control Module is typically located behind the dashboard, in the center area, often near the junction block. Always consult a service manual for the exact location on your specific model year.
What happens if I forget to provide my VIN?
We cannot ship your order without a VIN. Programming is essential for the module to function correctly in your vehicle. We will contact you to retrieve the VIN, which may delay your order.
Will this part fit other vehicles besides the Express van?
Yes, this BCM is compatible with a wide range of GM vehicles, including the GMC Savana, Chevrolet Traverse, GMC Acadia, Buick Enclave, and Cadillac CTS within specific model years. Please verify the part number and check the detailed fitment list to confirm compatibility.
My airbag light is on. Will this new BCM fix it?
If the airbag light is on due to a faulty BCM, this part will solve the problem. However, after installation, you may need to perform the “Setup SDM Primary Key in BCM” procedure with a professional scan tool to sync the modules and turn off the light.
Is this a difficult part to install myself?
For someone with moderate mechanical skill, the physical replacement is manageable. However, due to the potential need for post-installation relearn procedures requiring a scan tool, we recommend professional installation for a seamless experience.