Restore Your Truck’s Electrical System with a Plug-and-Play BCM
Are you battling frustrating electrical gremlins in your 2010 Chevy Avalanche? Intermittent power windows, a security system that won’t cooperate, or dashboard lights flickering for no reason 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 confusing and annoying issues. In my 20+ years as a technician, I’ve seen how a bad BCM can make a perfectly good truck feel unreliable. This isn’t just an inconvenience; it affects your vehicle’s security and core functions.
We offer a straightforward, reliable solution. This Body Control Module is a direct-fit replacement for your 2010 Avalanche 1500 Body Control Module and is guaranteed to restore proper function. The best part? We handle the most difficult step for you. Simply provide your vehicle’s VIN during checkout, and our experts will program the module with the latest GM software updates specific to your truck. It arrives at your door ready to install, saving you a costly trip to the dealership and the hassle of specialized programming tools.
A Technician’s Notebook: The Case of the Confused Cadillac
A customer brought in a 2010 Escalade last month with a laundry list of bizarre electrical problems. The radio would turn on and off, the driver’s side power locks worked only half the time, and the anti-theft light would stay on, sometimes preventing it from starting. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw multiple communication loss codes with various modules. This pointed directly to the BCM, the network’s traffic controller. We installed one of these pre-programmed BCMs, and it was like flipping a switch. Every single issue was resolved instantly. It’s a powerful reminder that for these complex GM platforms, a healthy BCM is absolutely critical.
Is Your Truck Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or interior lights.
- ✔ Security system issues, including false alarms or a no-start condition.
- ✔ Dashboard warning lights that appear without a clear cause.
- ✔ Communication errors between various electronic modules (DTC U-codes).
- ✔ Problems with the horn, wipers, or other accessories controlled by the BCM.
A Straightforward Guide to Installation
Replacing the BCM on your Avalanche is a manageable job for a confident DIYer. The module is typically located under the steering column, accessible from the driver’s side footwell.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work. Wait a few minutes for the system to fully discharge.
- Locate the BCM: On the 2010 Avalanche, find the BCM mounted under the driver’s side dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect the Connectors: Carefully unplug all electrical connectors from the old BCM. They have locking tabs, so be gentle and use a small flathead screwdriver if needed to depress the tabs. Do not pull on the wires.
- Remove the Old Module: Unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. Ensure they click into place.
- Reconnect the Battery: Reattach the negative battery terminal and tighten it securely.
Important Post-Installation Steps
After installing your new 2010 Avalanche 1500 Body Control Module, a few final configuration steps are necessary to ensure all vehicle systems work together correctly. While we handle the main programming, these vehicle-specific relearn procedures are performed after installation.
- Airbag System Sync: To clear the airbag warning light, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-end diagnostic scan tool. This ensures the new BCM communicates correctly with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Sensor Relearn: Some vehicles require a recalibration of the brake pedal position sensor. This is crucial for the proper function of traction control, stability control, and cruise control systems.
- Theft Deterrent Relearn: You may need to perform a simple theft deterrent relearn procedure, which typically involves cycling the key in the ignition. Consult your owner’s manual for the specific steps for your vehicle.
Note: If you are not comfortable performing these procedures, a qualified local mechanic can complete them quickly.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 15948438 and many others. It is compatible with a wide range of GM vehicles. Please verify your part number or contact us with your VIN to confirm fitment.
Replaces 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
Partial Fitment List:
ACADIA 07-12
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE / ESV / EXT 10
EXPRESS VANS 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA VANS 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON / YUKON XL 1500 10
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle the main programming for you before shipment. Just provide your VIN at checkout. You will only need to perform the vehicle-side relearn procedures mentioned above after installation.
Is this a used part?
No, this is a high-quality, reliable replacement part that meets or exceeds original equipment specifications. We do not sell used electronics.
Will this 2010 Avalanche 1500 Body Control Module fix my specific problem?
This module corrects issues directly caused by a faulty BCM, such as problems with power accessories, security, and internal communication networks. While it solves many common electrical problems, proper diagnosis is key. If you’re unsure, we recommend consulting a professional mechanic.
What information do you need from me?
We need your vehicle’s 17-digit Vehicle Identification Number (VIN) to program the module correctly for your specific options and software version.
What tools are required for the post-installation procedures?
The theft deterrent relearn typically requires only the ignition key. However, the airbag system sync (SDM key setup) and brake sensor recalibration require a professional-grade bidirectional scan tool.