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 even a no-start condition 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 fails, it can cause a wide range of frustrating and unpredictable problems. This replacement BCM, part number 15837419, is the definitive solution to restore your vehicle’s functionality and your peace of mind.
Why Choose Our Pre-Programmed GM Body Control Module?
Forget expensive dealership visits and the hassle of programming a new module. We handle the complex part for you. Simply provide us with your vehicle’s VIN during checkout, and our experts will flash this BCM with the latest GM software specific to your car, truck, or SUV. This ensures a seamless, plug-and-play installation process. This module is a direct replacement for a wide range of original part numbers, including 10382479, 15819552, 20815898, 22860591, and many more listed in the fitment guide.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior/exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ Security system faults or the anti-theft light staying on.
- ✔ Instrument cluster gauges behaving abnormally or warning lights appearing for no reason.
- ✔ Remote keyless entry failure.
- ✔ Vehicle failing to start, even with a good battery and starter.
- ✔ Wipers or horn activating unexpectedly.
Installation and Post-Install Notes
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, please be aware of the following potential post-installation procedures:
- 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 relearn may be required to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
What does a Body Control Module do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic features, such as power windows, locks, lights, wipers, security system, and instrument cluster functions.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive the VIN to program the module correctly.
Is this part difficult to install?
For most DIYers with basic tools, the physical swap is manageable. The module is usually located under the dashboard. The key benefit of our service is that the programming is done for you, eliminating the most difficult step.
Will I need to do anything after installing this BCM?
In many cases, it’s a plug-and-play installation. However, depending on your specific model, you may need a technician with a high-end scan tool to perform an airbag system sync or a brake pedal position relearn if related warning lights appear.
Do I need to send my old part back?
No. There is no core charge for this part. You can keep your original module.
How do I know this fits my vehicle?
This GM Body Control Module fits a wide variety of models like the Impala, Acadia, Express Van, Tahoe, and more. Please check the extensive list of compatible models and interchangeable part numbers on this page to confirm fitment for your vehicle.