Is Your Vehicle Plagued by Bizarre Electrical Issues?
If you’re dealing with flickering lights, malfunctioning power windows or locks, or strange warning messages on your dash, a failing Body Control Module (BCM) is likely the culprit. The BCM acts as 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 Programmed GM Body Control Module is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
Common Symptoms of a Failing BCM:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on, flickering, or not turning on.
- ✔ The security system acting up, causing no-start conditions or a persistent security light.
- ✔ Windshield wipers turning on by themselves or not working when commanded.
- ✔ The horn honking randomly or not working.
- ✔ False warnings on the instrument cluster, such as ‘Service Theft System’ or ‘Service Airbag’.
- ✔ Inability to communicate with the module using a diagnostic scan tool.
Why Choose Our Programmed GM Body Control Module?
Forget expensive dealership visits and programming fees. This BCM arrives at your door ready for installation. We use your vehicle’s VIN to flash the module with the latest, most stable software updates directly from GM. This ensures perfect compatibility and function right out of the box. Simply provide your VIN at checkout, and we handle the complex programming for you. This is the most efficient and reliable way to get your GM car, truck, or SUV back on the road.
Installation and Post-Install Steps
Installation is typically straightforward, involving locating the old module (often under the dash or behind a kick panel), disconnecting the battery, swapping the modules, and reconnecting the battery. However, on modern vehicles, some additional steps may be required after the physical installation is complete:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
Please consult a factory service manual or a qualified technician for procedures specific to your vehicle.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
Is this part difficult to install?
For many DIYers, the physical installation is manageable. It usually involves removing a few dash panels to access the module. The main benefit of our service is that the complex and expensive programming is already done for you.
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 ship your part until we receive the VIN, as it is required for the programming service.
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Will this fix my specific problem?
This Programmed GM Body Control Module is a direct solution for failures within the module itself. If your vehicle exhibits several of the symptoms listed, the BCM is the most probable cause. Proper vehicle diagnosis is always recommended.