Is your 2010 Chevy Avalanche experiencing bizarre electrical problems?
If you’re dealing with flickering lights, malfunctioning power windows, or a security system that has a mind of its own, the culprit is likely a failing Body Control Module (BCM). The BCM acts as the central command center for your truck’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues. Don’t let electrical gremlins sideline your vehicle. This direct-fit replacement BCM is the reliable solution to restore full functionality and peace of mind.
From the Diagnostic Bay
We had a 2010 Avalanche in the shop that was driving its owner crazy. The horn would honk randomly, the dome lights would stay on, and the key fob worked only half the time. We checked all the usual suspects—fuses, relays, wiring—with no luck. After connecting our diagnostic scanner, we saw multiple communication fault codes pointing to the BCM. Once we installed a new, VIN-programmed BCM, every single one of the strange electrical issues vanished. It was a perfect reminder of how critical this single component is to the vehicle’s entire electronic ecosystem.
Common Symptoms of a Failing BCM
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or failing to illuminate.
- ✔ The security or anti-theft system light stays on, preventing the engine from starting.
- ✔ Remote keyless entry (key fob) stops working intermittently or completely.
- ✔ Dashboard gauges behaving erratically or providing incorrect readings.
- ✔ Wipers turning on by themselves or not working when commanded.
- ✔ Communication errors with other modules when read by a diagnostic scanner.
Plug-and-Play Solution: The 2010 Avalanche Body Control Module
Replacing a BCM used to mean a mandatory trip to the dealership for expensive programming. We’ve eliminated that hassle. When you order from us, we flash the module with the latest GM software updates and program it specifically to your vehicle’s VIN before it ships. This ensures that the BCM communicates perfectly with your truck’s existing components, like the engine computer and instrument cluster, right out of the box. This is a genuine, tested part that restores the original performance and functionality of your vehicle’s electronics.
Installation Note: For the 2010 Chevrolet Avalanche, the BCM is typically located under the steering column. While the physical swap is straightforward for a seasoned DIYer, some post-installation procedures may be necessary. For example, if the airbag light appears, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. A ‘Brake Pedal Position Relearn’ may also be required to ensure proper brake light and traction control operation. Always consult a factory service manual for detailed instructions specific to your vehicle.
This module is a direct replacement for a wide range of GM part numbers, including 15276271, 25892622, 20815898, and many more. Please verify your part number or consult the extensive fitment list to confirm 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 various electronic accessories, such as power windows, locks, lights, wipers, and the security system.
Is this BCM ready to install out of the box?
Yes! We program the module to your vehicle’s specific VIN before shipping. This ensures it communicates correctly with your truck’s other systems. Some minor relearn procedures may be needed after installation, as noted in the product description.
Where is the BCM located on a 2010 Chevy Avalanche?
On the 2010 Avalanche, the BCM is typically located under the steering column, accessible from the driver’s side footwell area.
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 happens if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be synced with the airbag system (SDM). A professional scan tool is required for the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
How do I provide my VIN for programming?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. We cannot ship the part until we have this information to complete the programming.