Restore Full Electronic Functionality to Your Vehicle
Is your Chevrolet Caprice, Impala, or other GM vehicle experiencing bizarre electrical problems? Flickering lights, malfunctioning power windows, or a security system that acts on its own are common signs of a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can cause a wide range of frustrating issues. This replacement BCM, part number 15837419, is the definitive solution to restore your car’s proper operation and reliability.
From the Diagnostic Bay
We had a 2012 Impala come in with a classic ‘phantom battery drain.’ The owner had replaced the battery twice, but it would still be dead every few mornings. Standard parasitic draw tests were inconclusive. After ruling out the alternator and starter, we focused on the BCM. We noticed the interior dome light would faintly glow for hours after the car was shut off. A faulty BCM was keeping circuits partially active, slowly draining the battery. Replacing the BCM with a pre-programmed unit like this one solved the problem instantly. It’s a reminder that a bad BCM doesn’t always throw a check engine light; sometimes, the symptoms are much more subtle.
Common Symptoms of a Failing BCM:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ Horn honking randomly or not working when pressed.
- ✔ Issues with the anti-theft system, preventing the car from starting.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Problems with the radio or climate control systems.
- ✔ Unexplained battery drain that leaves you stranded.
Plug-and-Play Solution for your 2011-2013 Caprice BCM
Don’t let a faulty module keep you off the road. We make the repair process simple. Unlike a generic part from a dealership, this BCM comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load the latest GM software updates, ensuring optimal performance and compatibility with your car’s unique features. This means no expensive trips to the dealer for programming. Simply provide your VIN during checkout, and we’ll ship a module that’s ready for installation right out of the box.
Post-Installation Information
While this module is programmed for your vehicle, some systems may require a ‘handshake’ procedure after installation. Please be aware of the following:
- 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: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
Frequently Asked Questions
Why do you need my VIN?
Your vehicle’s VIN allows us to program the BCM with the exact software and settings for your specific options package (like power seats, sunroof, specific lighting, etc.). This ensures a true plug-and-play installation without needing a trip to the dealership.
Is this part difficult to replace?
The BCM is typically located under the dashboard on the driver’s side. Replacement involves disconnecting the battery, removing a few trim panels, and swapping the module. While mechanically straightforward for a DIYer, be aware that post-installation procedures like an airbag system sync may require a professional scan tool.
Will this fix my ‘Service Theft System’ message?
A failing BCM is a very common cause of issues with the vehicle’s anti-theft system, including ‘Service Theft System’ messages and no-start conditions. This programmed module will resolve BCM-related security faults.
What if my original part number isn’t 15837419?
This module is a direct replacement for a wide range of GM part numbers. Please check the extensive list in our description to confirm that your original part number is included, ensuring compatibility.
What happens if the airbag light comes on after I install it?
This is a normal possibility. It means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). A qualified shop will need to perform the ‘Setup SDM Primary Key in BCM’ procedure with a diagnostic tool to sync the systems and turn off the light.
Is there a core charge?
No, there is no core charge for this part. You can keep your old module.