Tired of Unpredictable Electrical Problems in Your GM Truck?
If your 2007-2011 GMC Sierra 2500 is acting possessed—with flickering lights, a dead HVAC system, or power windows with a mind of their own—you’re likely dealing with a failing Body Control Module (BCM). As the central command for your truck’s body electronics, a faulty BCM can cause a cascade of frustrating and hard-to-diagnose issues. This OEM-quality replacement Body Control Module, equivalent to part number 15263497, is the definitive solution. We pre-program it to your truck’s specific VIN, ensuring it works perfectly right out of the box, no expensive dealership programming required.
Case Study: A Tricky Diagnosis
I had a 2009 Sierra 2500 in the shop last month with a classic BCM failure story. The owner complained of the radio turning off randomly, the dome light staying on, and an intermittent no-start condition. Initial scans showed a dozen communication codes. After checking the main power and ground connections at the battery, we moved to the BCM under the dash. We found that the main ground pin for the module had high resistance due to corrosion. In my 20+ years, I’ve seen hundreds of these BCM failures where a poor ground or voltage spike slowly damages the internal circuits. Replacing the module and cleaning the ground connection permanently solved all the electrical gremlins. Always check your grounds during installation!
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s time to consider a replacement:
- ✔ The air conditioning or heater blower motor works intermittently or not at all.
- ✔ An airbag warning light is illuminated, often with a DTC like B1001 (Setup SDM Primary Key in BCM).
- ✔ Power door locks, windows, or exterior lights behave erratically or fail completely.
- ✔ The security system acts up, causing no-start situations or false alarms.
- ✔ Your scanner is pulling multiple communication or body-related Diagnostic Trouble Codes (DTCs).
- ✔ The truck stalls unexpectedly or experiences engine misfires tied to electrical instability.
A Straightforward Guide to Installation
Getting your truck back to normal is easier than you think. For most DIYers and professional techs, this is a quick job. This 2007-2011 Sierra 2500 BCM is designed for a direct-fit replacement.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most GMT900 platform trucks, the Body Control Module is located under the driver’s side dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unclip or unbolt the module from its mounting bracket.
- Install the New Module: Seat the new, VIN-programmed BCM into the mounting bracket and securely plug in all electrical connectors. You should hear a ‘click’ as they lock into place.
- Post-Installation Checks: Reconnect the battery terminal. Start the vehicle and test all functions: lights, wipers, locks, windows, and HVAC.
- Special Procedures (If Needed): If the airbag light remains on, an “Airbag System Sync” or “Setup SDM Primary Key in BCM” procedure is required using a professional-grade scan tool. Similarly, a “Brake Pedal Position Relearn” may be needed on some models to ensure proper brake light and stability control function.
Guaranteed Fitment for Your GM HD Truck
This module is a direct replacement for part number 15263497 and is interchangeable with many other GM part numbers, offering broad compatibility. It is verified to fit the following vehicles:
SIERRA 2500 PICKUP 08-11 Body Control (BCM)
SIERRA 3500 PICKUP 07 (new style, smooth door skin) Body Control (BCM)
SIERRA 3500 PICKUP 08-11 Body Control (BCM)
SILVERADO 2500 PICKUP 07 (new style, smooth door skin) Body Control (BCM)
SILVERADO 2500 PICKUP 08-11 Body Control (BCM)
SILVERADO 3500 PICKUP 07 (new style, smooth door skin) Body Control (BCM)
SILVERADO 3500 PICKUP 08-11 Body Control (BCM)
Also fits many other GM models including Avalanche, Escalade, Suburban, Tahoe, and Yukon from 2007-2013. Please verify your part number.
Frequently Asked Questions
Frequently Asked Questions
Do I need to take my truck to the dealer after installing this BCM?
No. We pre-program the module to your vehicle’s VIN before shipping. This ensures it’s ready for installation right out of the box, saving you time and the high cost of dealership programming.
What is a core charge?
There is no core charge for this part. You are not required to send your old, faulty module back to us, which simplifies the repair process for you.
My airbag light is on after installation. What should I do?
This is a common security feature. You’ll need a bi-directional scan tool to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system (SDM) and will turn off the light. Many independent shops can perform this service.
Is this a new or used part?
This is an OEM-quality, tested part that has been expertly programmed with the latest software for your vehicle. It is backed by our one-year warranty for your peace of mind.
How do I provide my VIN?
You will be prompted to enter your 17-digit VIN during the checkout process. Please double-check it for accuracy to ensure proper programming.
Will this fix my specific problem?
This 2007-2011 Sierra 2500 BCM is the solution for a wide range of electrical issues. If you’ve diagnosed the problem as a faulty BCM, this part will restore proper function to the affected systems.