Tired of Your Sierra’s Unpredictable Electronics?
Is your 2007-2011 GMC Sierra 2500 acting possessed? One day the power windows work, the next they don’t. The A/C blower motor has a mind of its own, and a pesky airbag light stays on no matter what. These aren’t just minor annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your truck’s comfort and convenience features. When it fails, it can cause a cascade of frustrating and hard-to-diagnose electrical problems. This module, part number 15263497, is the direct-fit, reliable solution to restore order to your vehicle’s electronics.
We take the guesswork and high dealership costs out of the equation. Each Sierra 2500 Body Control Module is expertly programmed to your truck’s specific Vehicle Identification Number (VIN) before it ships. This means no expensive trips to the dealer for programming—it arrives ready for a true plug-and-play installation. Get your truck back to operating the way it should, with all accessories functioning reliably.
I recently had a 2010 Sierra 2500 in the bay with a laundry list of complaints: intermittent wipers, flickering dash lights, and a dead driver’s side door lock. The owner had already replaced the battery and checked all the fuses. Another shop told him it was a complex grounding issue that would take hours to trace. After a quick scan, I saw multiple communication codes pointing back to the BCM. In my 20 years of experience, I’ve seen that a failing BCM can mimic a bad ground perfectly. We swapped in a VIN-programmed module, and within 10 minutes, every single issue was resolved. It’s often the simplest fix for the most complex-seeming problems.
Is Your Sierra 2500 Showing These Electrical Gremlins?
- ✔ Power windows, door locks, or interior lights operating erratically or not at all.
- ✔ The security system causing no-start or stalling conditions.
- ✔ HVAC controls are unresponsive, or the blower motor works intermittently.
- ✔ An active airbag warning light, often with a DTC B1001 (Setup SDM Primary Key in BCM).
- ✔ Unpredictable behavior from wipers, radio, or other electronic accessories.
- ✔ A dashboard lit up with various communication or body-related fault codes.
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your truck’s battery before beginning any electrical work.
- ✔ Locate the Module: The BCM is typically found under the driver’s side dash, near the steering column. It’s a black box with several large multi-pin connectors.
- ✔ Perform the Swap: Carefully unplug the electrical connectors from the old BCM. Release any mounting tabs or bolts holding it in place and remove it. Install the new module in its place and securely re-attach all connectors.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position and test all functions: windows, locks, lights, HVAC, and wipers to confirm the repair.
- ✔ Post-Install Checks: In some cases, an airbag light may persist. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function. Similarly, a ‘Brake Pedal Position Relearn’ may be needed. These are simple procedures for any well-equipped shop.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15263497 and is interchangeable with a wide range of GM part numbers, including 25844480, 25835966, 15263363, and others. It is confirmed to fit the following models:
ESCALADE & ESV & EXT 07-11
SIERRA 1500 PICKUP 07-11 (07 new style)
SIERRA 2500 PICKUP 07-11 (07 new style)
SIERRA 3500 PICKUP 07-11 (07 new style)
SIERRA DENALI 07-11 (07 new style)
SILVERADO 1500 PICKUP 07-11 (07 new style)
SILVERADO 2500 PICKUP 07-11 (07 new style)
SILVERADO 3500 PICKUP 07-11 (07 new style)
SUBURBAN 1500/2500 07-11
TAHOE 07-11
YUKON & YUKON XL 1500/2500 07-11
Note: Fitment may vary on some 2010-2013 models. Please verify your original part number or contact us with your VIN for guaranteed compatibility.
Frequently Asked Questions
Is this module truly plug-and-play?
Yes. We program the module to your vehicle’s VIN before shipping, so it’s ready for installation without needing a trip to the dealership for programming.
Why is my airbag light still on after installation?
This is a common GM security feature. The BCM and the airbag system (SDM) need to be synced. A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure, which usually takes just a few minutes.
Do I need to send my old BCM back?
No, there is absolutely no core charge for this part. You can keep your old module without any hassle.
What tools are required for the installation?
For the physical swap, only basic hand tools are typically needed, such as a socket or nut driver to remove the module. For potential post-installation procedures like the airbag sync, a bi-directional scan tool is necessary.
What if this doesn’t fix my problem?
While this Sierra 2500 Body Control Module is a common solution for many electrical issues, we always recommend proper diagnostics. This part is backed by our one-year warranty against defects.