Are you battling frustrating electrical gremlins in your GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts up, or even a car that won’t 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 fails, it can cause a wide range of confusing and seemingly unrelated problems. This replacement Body Control Module is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward installation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The security system light is on, or the alarm goes off randomly.
- ✔ Instrument cluster gauges behaving erratically or not working.
- ✔ Remote keyless entry failure.
- ✔ Vehicle won’t start, or the starter won’t engage despite a good battery.
- ✔ Communication errors with other vehicle modules.
Why Choose Our Programmed GM Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle out of the repair by programming the module with the latest GM software updates using the VIN you provide. This ensures perfect compatibility with your vehicle’s specific options and systems, eliminating the need for an expensive trip to the dealership for programming. Simply install the module, perform any necessary relearn procedures, and restore your vehicle’s functionality. Plus, with no core charge, you don’t have to worry about the cost and inconvenience of sending your old part back.
Installation and Post-Install Steps
After installing your new BCM, some vehicles may require additional steps to ensure all systems communicate correctly. These are simple procedures for a technician with a capable diagnostic tool.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration may be necessary on certain models.
Please note: This module is a direct replacement for a wide range of part numbers. Verify your original part number is on our cross-reference list to ensure compatibility.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls electronic accessories not related to the engine, such as power windows, locks, lights, wipers, and the security system.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will program the BCM specifically for your vehicle before shipping it to you.
Is this part difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. However, some vehicles may require post-installation relearn procedures for the airbag or brake systems, which may require a professional diagnostic tool.
Will this fix my specific electrical problem?
If your vehicle is exhibiting multiple symptoms from the list above, a failing BCM is a very likely cause. Proper diagnosis is always recommended, but this part is designed to solve common BCM-related failures.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.
What if my original part number isn’t 15872388?
This module is a direct replacement for a long list of interchangeable part numbers. Please check the full list on the product page to confirm that your original part number is included.