Are you experiencing frustrating and unpredictable electrical problems in your GM vehicle? Issues like flickering lights, malfunctioning power windows, or a dashboard that lights up with random warnings are often signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features. When it fails, it can cause a wide range of confusing symptoms. This replacement BCM, part number 20864768, is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
We make the repair process simple. Unlike the dealership, which requires you to have the vehicle towed in for expensive diagnostics and programming, we program this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ever leaves our facility. This means that for most vehicles, the installation is a straightforward plug-and-play process, getting you back on the road quickly and affordably.
We had a 2012 Chevy Traverse come in with a laundry list of complaints from the owner. The radio would turn off randomly, the driver’s side power lock wouldn’t work, and the security light was always on, sometimes preventing the car from starting. The customer had already replaced the battery and checked fuses with no luck. After connecting our diagnostic tool, we saw multiple communication errors pointing towards the BCM. Instead of a complex and costly rewiring job, we installed a VIN-programmed BCM. All the strange electrical gremlins vanished instantly. It’s a perfect example of how a single component can cause widespread, confusing issues.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft system light stays on, potentially causing a no-start condition.
- ✔ Key fobs or remote entry stop working reliably.
- ✔ The instrument cluster displays incorrect information or warning lights without cause.
- ✔ Erratic operation of the radio, climate controls, or windshield wipers.
- ✔ Communication error codes stored when scanned with a diagnostic tool.
Your Pre-Programmed 2012 Captiva Sport Body Control Module
This isn’t just a part; it’s a complete service. By providing us with your VIN during checkout, you receive a module that is loaded with the latest GM-certified software specifically for your vehicle’s configuration. This critical step ensures all the options and features your car came with from the factory will work correctly with the new BCM. This module is a direct replacement for a wide range of GM vehicles, including the Equinox, Impala, Acadia, Express/Savana vans, and more. Please verify your original part number against the extensive list of compatible numbers to ensure a perfect match.
Installation and Post-Install Notes
While the module is programmed for a plug-and-play installation, certain vehicle systems may require a ‘handshake’ with the new BCM. In some cases, an ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ procedure may be necessary using a professional-grade scan tool if you see related warning lights after installation. This is a simple recalibration to ensure all safety systems are communicating correctly. Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle responsible for managing and controlling body electronics. This includes power windows, locks, lights, wipers, the security system, and more. It acts as a central hub for these functions.
Is this BCM ready to install when I receive it?
Yes! We program the module with the latest GM software using the VIN you provide. This makes it a plug-and-play installation for most vehicles, saving you a trip to the dealership for programming.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We cannot ship the part until we have this information to program it correctly for your vehicle.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light is on after I install the new BCM?
If the airbag light appears, a simple ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with your car’s airbag system and can be done by a repair shop with a professional diagnostic tool.
Will this fit my vehicle if it’s not a 2012 Captiva Sport?
Yes, this BCM fits a very wide range of GM cars, trucks, and vans. Please check the detailed fitment list and cross-reference one of the many compatible part numbers listed on this page with the number on your original module to confirm compatibility.