Restore Full Functionality to Your GM Vehicle
Are you battling frustrating electrical gremlins in your 2010 Chevy Tahoe? Issues like flickering dashboard lights, power windows with a mind of their own, or a security system that prevents your truck from starting are classic signs of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of seemingly unrelated problems. In my 20+ years of diagnostics, I’ve seen how a failing BCM can make a perfectly good vehicle feel unreliable. This isn’t just an inconvenience; it’s a matter of function and safety.
We offer a dependable and straightforward solution. This is a high-quality Body Control Module, part number 20864768, that arrives at your door pre-programmed to your vehicle’s specific VIN. Forget about expensive dealership visits for programming or the need for specialized scan tools. We handle the complex part for you. By flashing the module with the latest GM software updates based on your VIN, we ensure it communicates flawlessly with your vehicle’s other systems right out of the box. This is the professional-grade fix that both seasoned mechanics and determined DIYers can rely on to get the job done right the first time.
A Technician’s Notebook
A customer’s 2010 Tahoe came into the shop last month with a truly baffling set of symptoms. The radio would turn on and off randomly, the driver’s side power window wouldn’t work, and occasionally, the truck would refuse to start, showing only a flashing security light. The owner had already replaced the battery and checked the fuses. After connecting my diagnostic tool, I saw multiple communication error codes pointing toward the BCM. Instead of a lengthy and costly diagnostic and programming session at the dealer, we installed one of our VIN-programmed modules. The entire swap took less than 30 minutes, and every single electrical issue was resolved instantly. It’s a prime example of how the right part, properly prepared, can save hours of frustration and hundreds of dollars.
Is Your Vehicle Exhibiting These BCM Failure Signs?
The BCM controls a wide range of functions, so symptoms can be varied. Here are the most common indicators I’ve diagnosed in my shop:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ The anti-theft or security system light is illuminated, causing a no-start condition.
- ✔ Dashboard warning lights appearing and disappearing without reason.
- ✔ Horn, wipers, or radio functioning intermittently.
- ✔ False readings on the instrument cluster gauges.
Your Straightforward BCM Installation Guide
Installing your new 2010 Tahoe Body Control Module is a manageable job for a DIYer with basic tools. Here’s a general guide to get you started:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to allow the systems to fully discharge.
- Locate the BCM: On the 2010 Tahoe and similar GM SUVs/trucks, the BCM is typically located under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test the functions like lights, locks, and windows to confirm operation.
Important Post-Installation Procedures
After installing your new BCM, a couple of final steps are often necessary to ensure all systems are synchronized. While our programming handles the core functions, these relearn procedures are critical for safety systems.
- Airbag System Reset: If the airbag warning light is on, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-end diagnostic tool. This re-establishes the security handshake between the new BCM and the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated after a BCM replacement. This ensures the brake lights and stability control system receive accurate input.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for a wide range of GM cars, trucks, and vans. Please verify your part number against our list to guarantee compatibility. This unit replaces the following part numbers:
10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
It is designed to fit models such as the Acadia, Avalanche, Escalade, Express, Savana, Impala, Suburban, Tahoe, Yukon, and many more. Please refer to the detailed fitment list provided in the product details to confirm your specific model and year.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the BCM to your vehicle’s VIN before we ship it. This handles the main configuration, allowing for a much simpler installation process. However, some post-installation relearn procedures, like for the airbag system, may be required.
How do I provide my VIN number?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically add it as a note during checkout or send it to us in a message referencing your order number.
Where is the BCM located on a 2010 Chevy Tahoe?
On the 2010 Tahoe and similar GM full-size SUVs, the Body Control Module is located under the driver’s side dashboard, usually attached to a bracket near the steering column.
Will this fix the ‘Service StabiliTrak’ or ‘Service Traction Control’ message?
While a faulty BCM can sometimes contribute to these warnings by disrupting communication, these messages are more commonly caused by wheel speed sensors, the steering angle sensor, or the electronic brake control module (EBCM). It’s best to have the specific trouble codes read before ordering.
What if I order the wrong part?
We strongly encourage you to match your original part number to the list provided. Providing us with your VIN for programming also serves as a final check. If you are unsure, please contact us before ordering so our experts can help you verify fitment.