Restore Full Electronic Control to Your GM Vehicle
Are you battling a storm of bizarre electrical problems in your GM car, truck, or SUV? Flickering lights, malfunctioning power windows and locks, a security system that acts on its own, or even a vehicle that refuses to start can all point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it malfunctions, it can create chaos. This replacement GM Body Control Module is your direct-fit, reliable solution to restore order and get your vehicle operating as it should.
From the Diagnostic Bay
We had a 2011 Chevy Impala come in with the most frustrating set of symptoms. The customer said the radio would randomly turn off, the driver’s side power window wouldn’t work on hot days, and occasionally the anti-theft light would flash, preventing the car from starting. They had already replaced the battery and checked fuses with no luck. After connecting our diagnostic tool, we saw multiple communication errors pointing toward the BCM. Instead of a complicated and expensive trip to the dealer, we installed one of our pre-programmed modules. The car started right up, and every single one of the intermittent electrical gremlins was gone for good. It’s a perfect example of how one component can cause a dozen confusing problems.
Symptoms of a Failing GM Body Control Module
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system or keyless entry failing intermittently.
- ✔ The horn sounding unexpectedly or not working at all.
- ✔ Dashboard warning lights (like the airbag or security light) staying on.
- ✔ A parasitic battery drain that kills your battery overnight.
- ✔ Complete no-start condition where the engine won’t crank.
Why Choose Our Pre-Programmed GM Body Control Module?
The biggest hurdle in replacing a BCM is the required programming. A new module from the dealership won’t work until it’s been coded to your vehicle’s specific VIN and options, a service that adds time and significant cost. We eliminate that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our technicians will program this module with the latest GM software updates for your exact vehicle. It arrives at your door ready for installation, saving you a trip to the dealership and hundreds of dollars in programming fees.
Important Post-Installation Information
While this module is programmed for a straightforward installation, some vehicle systems may require a relearn procedure after the BCM is connected. Please be aware of the following:
- Airbag System Sync: If your airbag warning light illuminates after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure proper operation of the brake lights and traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s comfort and convenience electronics. It controls functions like power windows, locks, lights, wipers, the security system, and more.
Does this module need to be programmed by a dealer?
No! This is the key benefit of our service. We program the module to your vehicle’s VIN before we ship it to you. It arrives ready to be installed, saving you time and money.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship the module without it.
What if the airbag light comes on after I install it?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag system. A technician with a professional-grade scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.
Is this a simple plug-and-play installation?
For most vehicles, it is. You disconnect the battery, remove the old BCM, install the new one, and reconnect the battery. However, as noted, some models may require additional relearn procedures for systems like the airbags or brake sensor.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your original module.