Restore Full Control Over Your Truck’s Electronics
Is your GMC Sierra or another GM truck experiencing a cascade of bizarre electrical issues? One minute the radio works, the next it’s dead. The power windows have a mind of their own, and a persistent airbag light is staring you down. As a technician with over two decades of experience, I’ve seen these exact symptoms hundreds of times. The culprit is almost always a failing Body Control Module (BCM). This isn’t just an annoyance; it’s a critical failure that can affect your vehicle’s security and safety systems. This replacement Body Control Module, compatible with part number 15926094, is the definitive solution for your 2013 Sierra 3500 BCM and a wide range of other GM trucks and SUVs from 2007-2013.
Case Study: A Tricky Diagnosis
A customer brought in his ’11 Silverado 2500 with a complaint that stumped two other shops: intermittent no-start and a battery that would drain overnight. They had already replaced the battery and alternator. After hooking up my scanner, I saw a dozen communication codes, but the key was a DTC B1001 for the airbag system. A failing BCM can disrupt the entire CAN bus network, preventing other modules from going to ‘sleep’ and causing a parasitic draw. After confirming the grounds were solid, we installed a VIN-programmed BCM. The parasitic draw vanished, and the truck started reliably. This is a classic example of how a faulty 2013 Sierra 3500 BCM can create symptoms that seem unrelated.
Is Your Truck Showing These Symptoms?
A failing BCM acts as the nervous system for your vehicle’s cabin electronics. If you’re noticing any of the following, it’s time for a replacement:
- ✔ Unresponsive or erratic power windows, door locks, or interior lights.
- ✔ HVAC controls not working or the blower motor functioning intermittently.
- ✔ The security system acting up, leading to no-start or stalling conditions.
- ✔ An illuminated airbag warning light, often with a DTC B1001 stored.
- ✔ Strange instrument cluster behavior or multiple warning lights on at once.
- ✔ Communication errors with other modules on the vehicle network.
A Straightforward Guide to Installation
One of the best features of this module is its simple, plug-and-play installation. No dealership visit is required because we program it to your VIN before it ships. You can get your truck back to 100% in minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most GM trucks and SUVs, the BCM is located under the driver’s side of the 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 module. They have locking tabs that need to be depressed. Once disconnected, unclip the module from its mounting bracket.
- Install the New Module: Snap the new, pre-programmed BCM into the mounting bracket and securely reconnect all electrical connectors. You’ll hear a click when they are fully seated.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all functions: lights, wipers, windows, locks, and HVAC to confirm the repair.
Important Note: In some cases, particularly if you had an airbag light, a post-installation procedure may be needed. If the airbag light remains on, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ function to sync the systems. Some models may also require a Brake Pedal Position relearn.
Will This Fit My Truck?
This module is a direct replacement for a wide range of General Motors vehicles. Please verify your vehicle is on this list before ordering. This part is interchangeable with several part numbers, including 25835966, 15926094, and 22860591.
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 3500 13 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 2500 10 Body Control (BCM), (under steering column)
YUKON XL 2500 09-11 Body Control (BCM); (under steering column)
ESCALADE EXT 07-09 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 08-11 Body Control (BCM); (under steering column)
TAHOE 07 Body Control (BCM); (under steering column)
YUKON 07 Body Control (BCM); (under steering column)
ESCALADE EXT 11 Body Control (BCM); (under steering column)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25835966
AVALANCHE 1500 08-09 Body Control (BCM); (under steering column)
SILVERADO 1500 PICKUP 08-11 Body Control (BCM); (under steering column)
TAHOE 09 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 10-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 2500 PICKUP 09-11 Body Control (BCM); (under steering column)
SUBURBAN 2500 07-09 Body Control (BCM); (under steering column)
YUKON 11 Body Control (BCM), (under steering column)
ESCALADE 11 Body Control (BCM); (under steering column)
ESCALADE ESV 11 Body Control (BCM); (under steering column)
SUBURBAN 1500 07-09 Body Control (BCM); (under steering column)
AVALANCHE 1500 07 Body Control (BCM), (under steering column)
SIERRA 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 08 Body Control (BCM), (under steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25835966
YUKON 08 Body Control (BCM), (under steering column)
YUKON 09 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 2500 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 3500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
TAHOE 08 Body Control (BCM)
YUKON XL 2500 07-08 Body Control (BCM), (under steering column)
SIERRA DENALI 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA DENALI 1500 11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
YUKON 10 Body Control (BCM); (under steering column), ID 25835966
YUKON XL 1500 07-09 Body Control (BCM), (under steering column)
YUKON XL 1500 11 Body Control (BCM); (under steering column)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
ESCALADE 07-09 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 1500 PICKUP 09 Body Control (BCM), (under steering column)
SIERRA DENALI 3500 11 Body Control (BCM); (under steering column)
SUBURBAN 2500 11 Body Control (BCM); (under steering column)
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25835966
SIERRA 1500 PICKUP 08 Body Control (BCM); (under steering column)
SIERRA DENALI 08-10 Body Control (BCM); (under steering column)
SUBURBAN 1500 11 Body Control (BCM); (under steering column)
ESCALADE 10 Body Control (BCM); (under steering column), ID 25835966
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 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
AVALANCHE 1500 11 Body Control (BCM)
TAHOE 11 Body Control (BCM); (under steering column)
Frequently Asked Questions
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. We program the module to your vehicle’s specific VIN before shipping. It arrives ready for a direct, plug-and-play installation, saving you time and money.
Is there a core charge for this BCM?
No, there is no core charge. You can keep your old module without any obligation to return it.
Why is my airbag light still on after installing the new BCM?
This is a common security feature. The BCM needs to be electronically ‘handshaken’ with the airbag’s Sensing and Diagnostic Module (SDM). This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. It’s a quick process for any well-equipped shop.
What tools are needed for the installation?
Basic hand tools are all that’s required. Typically, you’ll need a socket set or nut driver to remove the lower dash panel and possibly a small trim removal tool. The BCM itself usually unclips without tools.
Will this fix my truck’s no-start problem?
If the no-start is caused by the BCM’s control over the anti-theft or security system, then yes, this new module will resolve the issue. A failing BCM is a very common cause of intermittent starting problems in these trucks.