Restore Control Over Your Vehicle’s Electronics
Are you experiencing bizarre electrical problems in your GM vehicle? Flickering lights, malfunctioning power windows, or a dashboard that seems to have a mind of its own are common signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body-related functions, and when it fails, it can cause a cascade of frustrating and seemingly unrelated issues. This replacement BCM, part number 15837419, is the definitive solution to restore your vehicle’s proper operation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The security or anti-theft system light is illuminated, preventing the car from starting.
- ✔ Dashboard gauges behaving erratically or not working.
- ✔ Climate control (A/C and heat) system malfunctions.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Communication loss codes (U-codes) when scanned with a diagnostic tool.
Why Choose Our Programmed GM Body Control Module?
Getting your vehicle back on the road shouldn’t be complicated. That’s why we offer a simple, effective solution. Unlike a generic part from a local store, this Programmed GM Body Control Module is flashed with the latest official GM software specifically for your vehicle’s 17-digit VIN. This means it arrives at your door ready for installation, eliminating the need for expensive programming services at a dealership. Simply purchase the module, provide us with your VIN, and we’ll handle the rest. This is the most efficient way to get a reliable, plug-and-play repair.
Post-Installation Information
While this module is programmed for your vehicle, some models may require a simple relearn procedure after installation to ensure all systems communicate correctly. These are not always necessary but are good to be aware of:
- Airbag System Sync: If your airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with your existing airbag system.
- Brake Pedal Position Relearn: On some vehicles, a brake pedal position sensor recalibration may be needed to ensure correct brake light and traction control operation.
There is no core charge for this part. You can keep your original module without needing to send it back.
Frequently Asked Questions
What does a Body Control Module (BCM) 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, security system, wipers, and climate controls.
How do I know if my BCM is the problem?
Common signs include multiple, unrelated electrical issues happening at once, as listed in the symptoms section above. A diagnostic scan showing communication loss codes with various modules also points to a faulty BCM.
Is this part ready to install when I receive it?
Yes! We program the module to the VIN you provide, so it’s ready for installation. In some cases, minor post-installation procedures like an airbag sync or brake pedal relearn may be required.
Where 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 the module until we have programmed it.
Do I need to return my old BCM?
No, there is no core charge on this module. You can keep or dispose of your old part.
Will this BCM fit my vehicle?
This module replaces a wide range of GM part numbers and fits many vehicles like the Impala, Acadia, Express/Savana vans, Tahoe, and more. Please check the detailed fitment list on this page to confirm compatibility with your specific make, model, and year.