Restore Your Truck’s Brain and Banish Electrical Gremlins
Are you tired of playing whack-a-mole with your 2010 Chevy Avalanche’s electrical system? One day the power windows have a mind of their own, the next the security light is flashing, and then your truck refuses to start altogether. These frustrating, seemingly unrelated problems often point to one single component: a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can wreak havoc, making your reliable truck feel unpredictable. This isn’t just an annoyance; it’s a matter of safety and functionality.
This isn’t just another part. This is a complete, ready-to-install solution. We take a genuine OEM-quality Body Control Module and flash it with the latest GM software, specifically programmed to your truck’s unique Vehicle Identification Number (VIN). This critical step means you can bypass the expensive trip to the dealership for programming. You’re getting a direct-fit, intelligently prepared component designed to restore your vehicle’s performance and give you peace of mind.
A Technician’s Notebook: The Avalanche with a Ghost
A customer brought in his 2010 Avalanche 1500 last month with a list of symptoms that sounded like a ghost was in the machine. The interior lights would flicker, the radio would cut out, and sometimes the key fob wouldn’t work at all. He’d already replaced the battery and checked the main grounds. After hooking up my pro-level scan tool, I saw a slew of communication error codes (U-codes) between various modules. This is a classic sign. In my 20+ years in the bay, I’ve seen that when multiple, unrelated electronic systems act up simultaneously, the BCM is the prime suspect. It’s the traffic cop for all these signals, and when it fails, you get chaos. We installed a VIN-programmed 2010 Avalanche 1500 BCM, performed the quick post-install procedures, and every single ghost vanished. The truck was back to being a reliable workhorse.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security system light stays on, or the vehicle’s alarm goes off randomly.
- ✔ Intermittent no-start or no-crank conditions, even with a good battery.
- ✔ Instrument cluster gauges behaving strangely or warning lights appearing for no reason.
- ✔ Key fobs stop working or work unreliably.
- ✔ Communication errors with diagnostic scan tools.
A Straightforward Guide to Installation
Replacing the 2010 Avalanche 1500 BCM is a manageable job for a confident DIYer. The module is typically located under the driver’s side of the dashboard, near the steering column. While our VIN programming handles the complex part, a few simple post-installation steps are required to sync the new module with your truck’s other systems.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On the 2010 Avalanche, find the BCM mounted under the dash to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs, so be gentle. Then, unbolt or unclip the old module from its mounting bracket and remove it.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- CRITICAL: Post-Install Procedures: After installation, two key procedures are necessary. First, the ‘Setup SDM Primary Key in BCM’ procedure must be performed with a capable scan tool to ensure the airbag system communicates correctly and turns off the warning light. Second, a Brake Pedal Position Sensor calibration may be required to ensure proper brake light function and stability control performance.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 15921353 and a wide range of other interchangeable part numbers. It is guaranteed to fit the 2010 Avalanche 1500 BCM and many other GM vehicles. Please verify your original part number or consult the list below. Note that specific IDs may be required for certain models.
AVALANCHE 1500 10 (ID 25892622)
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10 (ID 25892622 or 20815898)
ESCALADE ESV 10 (ID 25892622 or 20815898)
ESCALADE EXT 10 (ID 25892622)
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 (ID 25892622 or 20815898)
TAHOE 10 (ID 25892622 or 20815898)
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10 (ID 25892622 or 20815898)
YUKON XL 1500 10 (ID 25892622 or 20815898)
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
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s VIN before we ship it. This saves you hundreds of dollars in dealership fees and allows for a much simpler installation.
What information do you need from me?
After you place your order, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This is essential for us to program the module correctly for your specific vehicle’s options.
Where is the BCM located on my 2010 Avalanche?
The Body Control Module is typically found under the driver’s side dashboard, to the left of the steering column. You will likely need to remove the lower dash cover panel to access it.
Will this fix my power window and door lock problems?
In most cases, yes. The BCM directly controls these functions. If your windows, locks, and lights are all acting erratically, a failing BCM is the most probable cause, and this part is the correct fix.
What tools are required for the post-installation procedures?
You will need a mid-to-high-level bidirectional scan tool that can perform specific functions like the ‘Setup SDM Primary Key’ and ‘Brake Pedal Position Sensor Calibration’. Many local independent shops or advanced DIYers have these tools.