Are you experiencing frustrating electrical issues in your Chevrolet Equinox or other GM vehicle? Problems like flickering lights, unresponsive power windows and locks, a malfunctioning security system, or strange warning messages on your dash are often symptoms of a failing Body Control Module (BCM). The BCM acts as the central hub for your vehicle’s body electronics, and when it fails, it can cause a wide range of perplexing problems. This replacement BCM, part number 20815898, is the reliable, straightforward solution to restore your vehicle’s full functionality.
We take the guesswork and hassle out of the repair process. Unlike a standard replacement part that requires expensive dealer programming, this module arrives at your door pre-programmed to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates, ensuring perfect compatibility and communication with your vehicle’s other systems. This plug-and-play approach saves you time, money, and a trip to the dealership.
Common Symptoms of a Failing Equinox Body Control Module
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors working intermittently or not at all.
- ✔ The security system or keyless entry failing to operate correctly.
- ✔ Unexplained battery drain when the vehicle is off.
- ✔ False warning lights on the instrument cluster (e.g., “Service Theft System”).
- ✔ Communication errors when scanning the vehicle with a diagnostic tool.
From the Diagnostic Bay
We had a 2008 Chevy Equinox come in with a classic case of BCM failure. The customer reported that their horn would honk randomly, the radio wouldn’t turn off with the key, and the power locks had a mind of their own. After confirming power and grounds to the BCM were good, we knew the module itself was the culprit. Instead of a costly dealer visit, the customer ordered one of our pre-programmed modules. The installation was a simple swap, and instantly all the strange electrical gremlins were gone. It’s a common repair, and having a pre-programmed module makes it accessible for both DIYers and professional shops.
Installation and Post-Install Notes
Replacing the BCM is typically a straightforward process. The module is often located in the center dash or under the steering column. Once the new, programmed module is installed, your vehicle’s primary functions should be restored. However, in some GM vehicles, additional steps may be required to sync all systems perfectly.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional-grade scan tool. This syncs 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 relearn may be necessary. This can also be done with a capable diagnostic tool.
There is no core charge for this module. You can keep your original part.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM is a computer that manages and controls many of your vehicle’s non-engine related electronic functions, such as power windows, locks, lights, wipers, security system, and interior accessories.
Is this module ready to install when I receive it?
Yes! This BCM is fully programmed to your vehicle’s VIN before we ship it. This makes the installation process as simple as possible, with no need for a trip to the dealer for programming.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot program and ship the module without it.
Will I need a special tool for installation?
While the physical swap requires basic hand tools, some models may require a professional diagnostic tool for post-installation procedures like an airbag system sync or brake pedal position relearn if warning lights appear.
Does this part fit vehicles other than the 2007-2009 Equinox?
Yes, this BCM is compatible with a wide range of GM vehicles, including various models of the Acadia, Traverse, Impala, Express/Savana vans, and more. Please check the detailed fitment list on this page to confirm compatibility with your specific vehicle.
Do I need to send my old BCM back?
No, there is no core charge associated with this part. You can keep your original module.