Is your GM vehicle suffering from strange and unpredictable electrical problems? Flickering lights, malfunctioning power windows, a faulty security system, or even a no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). The BCM acts as the central hub for your vehicle’s body electronics, and when it goes bad, it can cause a cascade of frustrating issues. This replacement GM Body Control Module is the definitive solution to restore your vehicle’s proper function and reliability.
Unlike a standard replacement part that requires a trip to the dealership for expensive programming, this BCM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We handle the complex flashing process with the latest GM software updates before we ship, making installation as straightforward as possible. This saves you time, money, and the headache of coordinating with a service center.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating incorrectly or not at all.
- ✔ The vehicle’s security system malfunctioning or preventing the engine from starting.
- ✔ Warning lights appearing on the dashboard for no apparent reason.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Problems with the radio, climate control, or other interior accessories.
Why Choose Our Pre-Programmed GM Body Control Module?
This module is a direct-fit replacement for a wide range of original equipment part numbers, ensuring broad compatibility across many popular GM models like the Impala, Tahoe, Yukon, Acadia, Express, Savana, and more. By providing us with your VIN during checkout, you receive a part that is precisely matched to your vehicle’s factory settings and options. While the physical installation is typically straightforward, please be aware that some vehicles may require a simple relearn procedure after installation. For example, if the airbag light is on, a ‘Setup SDM Primary Key in BCM’ procedure may be needed. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary for proper brake light and traction control function. These procedures can often be performed by a qualified technician with a professional scan tool.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related functions. This includes power windows, locks, lights, security systems, wipers, and various other comfort and convenience features.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship your order until we receive this information, as it is essential for programming the module correctly for your specific vehicle.
Is this a difficult part to replace?
For most DIY mechanics with some experience, replacing a BCM is a manageable job. It typically involves accessing the module (often located under the dash), disconnecting the battery, and swapping the electrical connectors. The main benefit of our product is that the difficult programming step is already done for you.
Will I need to perform any other steps after installation?
In some cases, yes. Depending on your specific model, you may need a technician to perform a ‘Setup SDM Primary Key in BCM’ if the airbag light appears, or a ‘Brake Pedal Position Relearn’. This ensures all related vehicle systems communicate correctly with the new BCM.
Is there a core charge for my old BCM?
No, there is no core charge. You can keep your original module without needing to send it back to us.