If your 2013 GMC Sierra 2500 is plagued by baffling electrical problems—from flickering lights and a dead HVAC system to random warning messages—the root cause is often a failing Body Control Module (BCM). As the central computer for your truck’s comfort and security features, a faulty BCM can create a host of frustrating issues. This OEM-quality replacement, corresponding to part number 15263497, is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
We offer a professional Cloning Service with this module. This means we transfer the critical data from your original BCM directly to this replacement unit. The result is a true plug-and-play component that requires no expensive trip to the dealership for programming. It arrives ready for installation, synced to your truck’s specific VIN and configuration, ensuring all systems communicate flawlessly from the moment you connect it.
Case Study: A Tricky Diagnosis
I recently had a 2013 Sierra 2500 HD in the shop with a classic BCM failure story. The owner was chasing a parasitic battery drain for weeks. He’d replaced the battery twice and even the alternator, but the truck would still be dead some mornings. His power door locks worked intermittently, and the radio wouldn’t always turn off with the key. After hooking up my scanner, I saw multiple communication codes pointing to the BCM. A faulty BCM can fail to let other modules ‘go to sleep,’ causing a constant, slow drain. We swapped in a cloned BCM, and the problem was solved instantly. It’s a textbook example of how a failing 2013 Sierra 2500 BCM can mimic other, more expensive problems.
Is Your Sierra Showing These Electrical Faults?
A failing BCM announces itself with a variety of symptoms. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional power windows, door locks, or interior/exterior lights.
- ✔ The HVAC blower motor works intermittently or not at all.
- ✔ Your security system malfunctions, or the truck stalls unexpectedly.
- ✔ An airbag warning light is illuminated on the dash, often with DTC B1001 stored.
- ✔ The instrument cluster displays strange warnings or gauges behave erratically.
- ✔ Poor ground symptoms or other persistent electrical gremlins that defy diagnosis.
A Straightforward Guide to BCM Installation
For the confident DIYer or professional mechanic, installing this BCM is a quick job that typically takes less than 15 minutes. No specialized tools are required.
- Safety First: Always disconnect the negative terminal from your truck’s battery before working on electrical components.
- Locate the BCM: On your Sierra, the BCM is located under the driver’s side of the dashboard, usually near the steering column.
- Remove Connectors: Carefully unplug the electrical connectors from the old BCM. The levers on the connectors must be fully disengaged before they will release. Do not force them.
- Swap the Module: Unclip or unbolt the old BCM from its mounting bracket and install the new, cloned module in its place.
- Reconnect and Test: Securely plug the connectors into the new BCM, reconnect the battery terminal, and start the vehicle. Test all functions like lights, windows, locks, and wipers to confirm the repair.
Post-Installation Note: In some cases, if the airbag light was on, you may need a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function to sync the systems. A brake pedal position relearn may also be required on certain models.
Verified Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 15263497 and is interchangeable with a wide range of other GM part numbers, including 25844480, 25835966, 15263363, and more. It is guaranteed to fit the following vehicles:
AVALANCHE 1500 08-09 Body Control (BCM); (under steering column)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25835966
AVALANCHE 1500 11 Body Control (BCM)
ESCALADE 07-09 Body Control (BCM); (under steering column)
ESCALADE 10 Body Control (BCM); (under steering column), ID 25835966
ESCALADE 11 Body Control (BCM); (under steering column)
ESCALADE ESV 07-09 Body Control (BCM); (under steering column)
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25835966
ESCALADE ESV 11 Body Control (BCM); (under steering column)
ESCALADE EXT 07-09 Body Control (BCM); (under steering column)
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25835966
ESCALADE EXT 11 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 1500 PICKUP 08 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 09 Body Control (BCM), (under steering column)
SIERRA 1500 PICKUP 10-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 3500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA DENALI 08-10 Body Control (BCM); (under steering column)
SIERRA DENALI 1500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 3500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 3500 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 1500 PICKUP 08-11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), under steering column)
SILVERADO 2500 PICKUP 08 Body Control (BCM), (under steering column)
SILVERADO 2500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 08 Body Control (BCM), (under steering column)
SILVERADO 3500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 07-09 Body Control (BCM); (under steering column)
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 11 Body Control (BCM); (under steering column)
SUBURBAN 2500 07-09 Body Control (BCM); (under steering column)
SUBURBAN 2500 10 Body Control (BCM), (under steering column)
SUBURBAN 2500 11 Body Control (BCM); (under steering column)
TAHOE 07 Body Control (BCM); (under steering column)
TAHOE 08 Body Control (BCM)
TAHOE 09 Body Control (BCM); (under steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25835966
TAHOE 11 Body Control (BCM); (under steering column)
YUKON 07 Body Control (BCM); (under steering column)
YUKON 08 Body Control (BCM), (under steering column)
YUKON 09 Body Control (BCM); (under steering column)
YUKON 10 Body Control (BCM); (under steering column), ID 25835966
YUKON 11 Body Control (BCM), (under steering column)
YUKON XL 1500 07-09 Body Control (BCM), (under steering column)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25835966
YUKON XL 1500 11 Body Control (BCM); (under steering column)
YUKON XL 2500 07-08 Body Control (BCM), (under steering column)
YUKON XL 2500 09-11 Body Control (BCM); (under steering column)
Frequently Asked Questions
How does the Cloning Service work?
After you place your order, you will send us your original BCM. We then extract the vehicle-specific data and transfer it to your new module. This ensures 100% compatibility with your truck’s existing systems and options. We return your original module along with the newly programmed one.
Will I need a scan tool after installation?
Generally, no. Because this is a cloned module, it should be plug-and-play. However, if an airbag light persists, a professional scan tool is needed for the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system.
Where is the BCM located on my 2013 Sierra 2500?
The Body Control Module is typically found under the driver-side dashboard, to the left of the steering column. It’s a black box with several large electrical connectors.
Is there a core charge for this part?
No, there is no core charge. We require your original module for the cloning process, but it will be returned to you along with the replacement part.
What if this doesn’t fix my problem?
This module is guaranteed to fix the symptoms listed if the BCM is the faulty component. We always recommend proper vehicle diagnosis before ordering parts. If you’re unsure, consult with a qualified mechanic to confirm the BCM is the source of your issues.