Restore Your Vehicle’s Electrical Functions
Is your vehicle plagued by strange electrical issues like flickering lights, malfunctioning power windows, or a security system that acts on its own? These are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and seemingly unrelated problems. This replacement GM Body Control Module is the definitive solution to restore full functionality and reliability to your car, truck, or SUV.
From the Diagnostic Bay
We had a 2011 Chevy Traverse come in with the weirdest symptoms. The customer said the radio would randomly change stations, the driver’s side window wouldn’t go down, and the dome lights would stay on, draining the battery. They had already replaced the window switch and the battery, with no luck. After hooking up our diagnostic scanner, we saw multiple communication errors pointing towards a single source. The culprit was a faulty BCM. Instead of sending them to a dealership for a costly replacement and programming, we installed one of our pre-programmed units. The vehicle was back to normal in under an hour, saving the customer hundreds of dollars and a lot of headaches. It’s a perfect example of how a single failing module can mimic a dozen different problems.
Symptoms of a Failing GM Body Control Module
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your BCM is the root cause:
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Malfunctioning security system or keyless entry.
- ✔ Instrument cluster gauges behaving erratically or warning lights staying on.
- ✔ HVAC (heating and air conditioning) controls not responding.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
- ✔ Communication error codes stored when scanned with a diagnostic tool.
The Plug-and-Play Solution
The biggest challenge with replacing a BCM is the required programming. A new module from the dealership won’t work until it’s been programmed to your vehicle’s specific Vehicle Identification Number (VIN) and options, a service that adds significant cost and requires a trip to the dealer. We eliminate that hassle. Simply provide us with your vehicle’s VIN during checkout, and we will program this GM Body Control Module with the latest GM software updates before it ships. This ensures it’s ready for installation right out of the box, making the repair process as simple as possible.
After installation, some vehicles may require a simple relearn procedure, such as for the airbag system or brake pedal position sensor, which can often be done with a high-level diagnostic tool. Please refer to the post-installation notes for more details.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer that acts as the central hub for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, security system, wipers, and the instrument cluster.
Why do you need my VIN?
Your vehicle’s VIN is required to program the BCM with the correct software and settings for your specific make, model, and options package. This ensures the module works correctly once installed, saving you a trip to the dealership.
Is this part difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. The BCM is often located under the dashboard. The main difficulty is usually the programming, which we handle for you before shipping.
What happens if the airbag light comes on after installation?
If the airbag light is on, it means the new BCM needs to be synced with the airbag system’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure using a professional diagnostic tool.
Does this module replace multiple part numbers?
Yes, this BCM is a direct replacement for a wide range of original part numbers, including 10382479, 15880684, 20815898, 22860591, and many others listed in the description.