Is Your 2010 Avalanche Experiencing Strange Electrical Problems?
If you’re dealing with flickering lights, malfunctioning power windows, a haywire security system, or other bizarre electrical gremlins in your 2010 Chevrolet Avalanche, a failing Body Control Module (BCM) is the most likely culprit. The BCM acts as the central nervous system for your truck’s body electronics, managing everything from the interior lights and door locks to the instrument cluster and climate controls. When it starts to fail, it can cause a cascade of confusing and frustrating issues that can be difficult to diagnose.
From the Diagnostic Bay
We had a 2010 Avalanche come into the shop last month with a list of symptoms that sounded like a poltergeist had taken up residence. The dome lights would stay on, the driver’s side window wouldn’t go down, and the horn would randomly chirp. The owner had already replaced the battery and checked all the fuses. After connecting our diagnostic scanner, we saw multiple communication error codes pointing towards the BCM. A replacement, programmed module solved every single issue. It’s a perfect example of how one faulty component can create widespread, seemingly unrelated problems.
The Direct-Fit, Programmed Solution
Don’t let a faulty BCM keep your truck off the road or drive you crazy. This replacement 2010 Avalanche Body Control Module is the simple, reliable solution you need. We take the guesswork and hassle out of the repair by pre-programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before we ship it. This means you get a part that is loaded with the latest GM software updates and is ready for installation right out of the box. No expensive trips to the dealership for programming are required.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that won’t turn on or off, or that flicker intermittently.
- ✔ The security system acting up, causing false alarms or a no-start condition.
- ✔ Instrument panel gauges behaving erratically or warning lights staying on for no reason.
- ✔ HVAC (heating and air conditioning) controls not responding.
- ✔ Intermittent issues with the radio or entertainment system.
- ✔ Communication error codes (U-codes) stored in the vehicle’s diagnostic system.
Installation and Required Procedures
Physically installing the 2010 Avalanche Body Control Module is straightforward for a DIYer with basic tools. It is typically located under the driver’s side dashboard, near the steering column. After swapping the module, there are a few potential procedures that may be necessary to ensure all systems communicate correctly.
Post-Installation Steps:
- Airbag System Sync: If your airbag warning light illuminates after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed. This requires a professional-grade scan tool to sync the new BCM with the airbag system. This is only needed if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary. This ensures your brake lights and traction control system function as intended.
Please note: Specific procedures can vary. We always recommend consulting a factory service manual or a qualified technician for guidance.
This module is a direct replacement for a wide range of GM part numbers, including 15819552, 25892622, 20815898, and many more. By providing your VIN, you ensure you receive a perfectly matched and updated component, restoring your vehicle’s functionality and your peace of mind. Forget the dealership hassle and get the right part, programmed and ready to go.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We handle all the programming for you before shipment. Simply provide us with your vehicle’s VIN during checkout, and the module will arrive ready for installation with the latest GM software for your specific truck.
Where is the BCM located on my 2010 Avalanche?
The Body Control Module on a 2010 Chevrolet Avalanche is typically located under the driver’s side of the dashboard, often attached to or near the steering column support.
What happens if the airbag light comes on after I install it?
This indicates that the new BCM needs to be electronically introduced to the vehicle’s airbag system (SDM). A technician with a high-level scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules and turn off the light.
Is this a difficult part to replace myself?
For someone with moderate mechanical skill, the physical replacement is not overly difficult. It involves removing some lower dash panels for access. The key is understanding that some post-installation electronic relearn procedures, like the airbag sync, may require a professional scan tool.
Will this BCM fix my specific electrical problem?
This module will correct issues directly caused by a faulty BCM. If you are experiencing several of the symptoms listed, such as erratic lights, locks, and security system problems, there is a very high probability that a failing BCM is the root cause. However, it will not fix issues related to faulty wiring or other separate components.