Fix Persistent Electrical Problems in Your GM Truck or SUV
If you’re dealing with baffling electrical issues in your 2007-2011 GM vehicle, you know the frustration. One day the power windows work, the next they don’t. The A/C blower quits randomly on a hot day. These aren’t just annoyances; they’re often symptoms of a failing Body Control Module (BCM). This module is the central command for your vehicle’s body electronics, and when it goes, it can create a cascade of problems that are difficult to diagnose. This replacement BCM, part number 15284816, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a true plug-and-play fix.
A Technician’s Notebook: The Tahoe with a Mind of Its Own
I had a 2009 Chevy Tahoe in the bay last month that was driving its owner crazy. The main complaint was an intermittent airbag light and a climate control system that worked whenever it felt like it. The customer had already replaced the blower motor resistor, a common culprit. After scanning the vehicle, I found a B1001 code and a slew of U-codes (loss of communication). Instead of chasing wires for hours, I went straight to the BCM. These modules are known to fail internally, causing poor communication between the BCM and other modules like the SDM (Sensing and Diagnostic Module for airbags). A new, properly programmed BCM solved every single issue in under 10 minutes. This is a fix I’ve done hundreds of times, and it’s almost always the BCM itself.
Is Your GM Vehicle Showing These Symptoms?
- ✔ The airbag or SRS warning light is illuminated, often with a DTC B1001 stored.
- ✔ Power windows, door locks, or mirrors operate intermittently or not at all.
- ✔ Interior dome lights or exterior lamps flicker or fail to turn on/off correctly.
- ✔ The HVAC system is erratic, with the blower motor cutting out or controls being unresponsive.
- ✔ Your vehicle’s security system acts up, preventing the engine from starting.
- ✔ You’re seeing multiple communication error codes (U-codes) when scanning the vehicle.
Why Choose a VIN-Programmed 2007-2011 Body Control Module?
This isn’t just a replacement part; it’s a complete solution. Ordering a BCM from a dealership often means paying for the part, paying for labor, and then paying an additional fee for programming. Our modules eliminate that extra step and expense. We flash the module with your vehicle’s specific VIN and the latest GM software before it even ships. This ensures all factory-intended functions work correctly right out of the box, resolving common DTCs and restoring the communication pathways between all your vehicle’s electronic systems for reliable, long-term operation.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronics.
- ✔ Locate the BCM: On most compatible GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s often a black box with several large multi-pin connectors.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once unplugged, unclip or unbolt the old module from its mounting bracket.
- ✔ Install the New BCM: Mount the new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, locks, windows, wipers, and HVAC to confirm the repair.
Post-Installation Note: In some cases, particularly if you had an airbag light on, the system may need to sync with the new BCM. This requires a ‘Setup SDM Primary Key’ procedure using a professional scan tool. A Brake Pedal Position relearn may also be needed on some models. See our FAQ for more details.
Guaranteed Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 15284816 and other interchangeable numbers. It is verified to fit the following vehicles:
- Chevrolet Avalanche (2007-2011)
- Chevrolet Silverado 1500/2500/3500 (2007-2011)
- Chevrolet Suburban 1500/2500 (2007-2011)
- Chevrolet Tahoe (2007-2011)
- GMC Sierra 1500/2500/3500 (2007-2011)
- GMC Sierra Denali (2007-2011)
- GMC Yukon & Yukon XL (2007-2011)
- Cadillac Escalade, ESV, EXT (2007-2011)
Note: Please verify your original part number or consult the detailed fitment list from the original product data to ensure perfect compatibility.
Frequently Asked Questions
Frequently Asked Questions
Do I need to have this BCM programmed by a dealer?
No. We program the module to your vehicle’s VIN before shipping. It arrives ready for installation, with no extra dealer visits required.
What is a core charge?
A core charge is a deposit you pay until you return your old part. We have a ‘No Core Charge’ policy, so you can keep your old module without any extra fees or hassle.
My airbag light is still on after installation. What should I do?
This is normal for some vehicles. The new BCM needs to be electronically ‘introduced’ to the airbag system (SDM). This is done with a professional scan tool using the ‘Setup SDM Primary Key in BCM’ function. Most local repair shops can perform this procedure.
Is this part difficult to install myself?
For most DIYers with basic tools, this is a very manageable job. The module is typically easy to access under the dash, and the entire process usually takes less than 15 minutes.
Will this fix my check engine light?
A BCM typically controls body functions, not engine performance. If you have a check engine light, the problem is more likely with the Engine Control Module (ECM) or a related sensor. This BCM will not resolve engine-related fault codes.
What part numbers does this replace?
This module is a direct replacement for 15284816 and is interchangeable with many others, including 25835966, 15263363, 15878753, 25971916, and 20939137, among others.