Restore Full Electronic Function to Your Vehicle
Are you battling bizarre electrical gremlins in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that has a mind of its own, or a car 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 falters, it can cause a cascade of frustrating and seemingly unrelated issues. This VIN-programmed BCM is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
From the Diagnostic Bay
We once had a customer with a Chevy Impala who was on his third new battery in six months. The car would be fine for a few weeks, then suddenly dead in the morning. He was convinced he had a bad alternator or a faulty battery. After testing the charging system, we performed a parasitic draw test and found a significant drain. The culprit wasn’t the battery or alternator; it was a faulty BCM that wasn’t letting all the vehicle’s systems go to ‘sleep’ after the key was off. Replacing the BCM solved the mysterious battery drain for good.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Vehicle security system faults or the alarm activating randomly.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire up.
- ✔ Unexplained parasitic battery drain leading to a dead battery.
- ✔ Wipers turning on by themselves or not parking in the correct position.
Why Choose Our Programmed GM Body Control Module?
Getting your vehicle back on the road shouldn’t be a hassle. Unlike a generic module from a dealership or parts store, this GM Body Control Module arrives at your door pre-programmed with the latest GM software updates, specifically matched to your vehicle’s VIN. This eliminates the need for expensive dealership programming, saving you time and money. Simply provide us with your VIN during checkout, and we handle the complex programming for you. This ensures a seamless installation process and restores the precise functionality your vehicle was built with.
Installation and Post-Install Notes
While installation is often straightforward, please be aware of potential post-installation procedures that may be required for your specific model:
- Airbag System Sync: If the airbag warning light is illuminated 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: Some models may require a brake pedal position sensor recalibration to ensure proper operation of the brake lights and traction control system.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
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, wipers, security system, and more.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings for your vehicle’s specific options and features. This makes the installation process much simpler and avoids a trip to the dealer.
Is this a plug-and-play part?
Because we pre-program the module to your VIN, it is designed to be as close to plug-and-play as possible. However, as noted, some vehicles may require additional relearn procedures (like for the airbag or brake pedal sensor) with a professional scan tool after installation.
Will this fix my car’s electrical problems?
If your vehicle’s issues match the common symptoms of BCM failure and a proper diagnosis has been performed, this module is the correct component to resolve those problems. It is a direct replacement for a faulty original GM Body Control Module.
Do I need to send my old part back?
No, there is no core charge for this module. You can keep your original part.