Restore Full Electrical Function to Your Chevrolet Traverse
Is your 2009-2012 Traverse suffering from bizarre electrical problems? Flickering lights, malfunctioning power windows, a security system that acts on its own, or warning lights that won’t turn off are all classic signs of 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 create a cascade of frustrating and unpredictable issues. This replacement Body Control Module, part number 20815898, is the definitive solution to restore your vehicle’s stability and functionality.
From the Diagnostic Bay
We had a 2011 Traverse come in with the strangest symptoms. The owner said the radio would change stations by itself, the interior lights would flicker randomly while driving, and sometimes the power locks wouldn’t respond. We checked the battery and alternator, which were fine. After connecting our scan tool, we saw multiple communication errors pointing towards the BCM. After installing a VIN-programmed BCM like this one, all the electrical gremlins vanished. The customer was thrilled to have their vehicle back to normal without the guesswork.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, locks, and mirrors.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ Intermittent starting problems or security system faults.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ Warning lights (like ABS or Airbag) illuminating for no reason.
- ✔ Malfunctioning heating and A/C controls.
Why Choose Our Pre-Programmed 2009-2012 Traverse BCM?
Replacing a BCM isn’t just about swapping hardware. The module must be programmed specifically to your vehicle’s Vehicle Identification Number (VIN) to communicate with other onboard computers. We handle this critical step for you. Simply provide your VIN after purchase, and our technicians will flash this module with the latest GM software updates for your exact vehicle configuration. This ensures a seamless installation process, eliminating the need for an expensive trip to the dealership for programming. This is a true plug-and-play solution designed to get you back on the road quickly.
This module is a direct replacement for a wide range of original equipment part numbers, including 15921352, 22860591, 25892622, and many more, ensuring broad compatibility across numerous GM models such as the Acadia, Enclave, Impala, and various Express/Savana vans. With no core charge, you can keep your original module without the hassle of shipping it back.
Installation Notes
While this 2009-2012 Traverse BCM is designed for straightforward installation, some vehicles may require a simple post-installation procedure. If the airbag warning light is illuminated after installation, a professional scan tool will be needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, a brake pedal position sensor relearn may be necessary on some models. Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Frequently Asked Questions
Is this BCM truly plug-and-play?
Yes, for most vehicles. We program it to your VIN before shipping, so it’s ready to install. In some cases, minor relearn procedures, like for the airbag system or brake pedal sensor, may be needed with a professional scan tool.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship the module without it.
What does the Body Control Module do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, security system, wipers, and climate controls.
Will this fix my specific electrical problem?
This module corrects issues directly caused by a faulty BCM. If you’re experiencing several of the symptoms listed, it’s highly likely this is the solution. However, always ensure a proper diagnosis has been performed to rule out wiring or sensor issues.
Do I need to return my old BCM?
No. This product has no core charge, so you can keep your original part without any additional fees or hassle.