Restore Full Electrical Function to Your GM Truck or SUV
Are you battling strange and frustrating electrical problems in your vehicle? Intermittent wipers, malfunctioning power windows, a dead HVAC system, or a persistent airbag light are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a cascade of issues. This OEM-quality GM Body Control Module, interchangeable with part number 15263497, is the definitive solution for a wide range of 2007-2013 GM trucks and SUVs, including the Chevrolet Silverado, GMC Sierra, Tahoe, and Cadillac Escalade.
We had a 2011 GMC Sierra 2500 in the shop with a textbook case of BCM failure. The owner reported the radio would turn on by itself, the driver’s side power lock was dead, and the A/C blower was completely unresponsive. After checking fuses and relays, we scanned the vehicle and found multiple communication loss codes with the BCM. A quick inspection under the dash revealed no signs of water intrusion or physical damage. Replacing the original module with a VIN-programmed unit like this one resolved all issues in under 10 minutes. It’s a common failure point, but thankfully, a straightforward fix with the right part.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Interior or exterior lights behaving erratically or not turning on.
- ✔ HVAC controls are unresponsive, or the blower motor works intermittently.
- ✔ The security system malfunctions, causing no-start or stalling conditions.
- ✔ An airbag warning light is illuminated on the dash, often with DTC B1001.
- ✔ Unexplained battery drain when the vehicle is off.
- ✔ Communication errors with other vehicle modules.
The Solution: A Programmed 2011 Sierra Denali 2500 BCM
Don’t let electrical gremlins keep your truck off the road. This module is the perfect replacement for your faulty original. We take the guesswork and hassle out of the repair by pre-programming the module to your vehicle’s specific VIN. This ensures that all factory settings and options are correctly configured, making installation a true plug-and-play process. You get a reliable part that communicates flawlessly with your vehicle’s other systems right out of the box, with no expensive trip to the dealership required for programming.
Installation and Post-Install Notes
The BCM is typically located under the driver’s side dashboard, near the steering column. Installation is simple and can often be completed in less than 5 minutes with basic tools. After installation, most vehicles will be fully functional. However, please note the following potential procedures:
- Airbag System Sync: If the airbag warning light remains on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ must be performed. This requires a professional-grade scan tool and syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor relearn may be needed to ensure proper brake light and stability control operation.
This module is a direct replacement for numerous part numbers, including 25844480, 25835966, 15263363, 15878753, 20939137, and 22860591. Order today and restore your vehicle’s performance and reliability.
Frequently Asked Questions
What does ‘VIN Programmed’ mean?
It means we load your vehicle’s specific Vehicle Identification Number (VIN) and corresponding software onto the module before shipping it. This ensures it works perfectly with your truck’s existing features and options without needing any additional programming from a dealer.
Is this difficult to install myself?
For most DIYers, the physical installation is very easy. The BCM is usually held in by a few clips or bolts under the driver’s side dash. The entire swap can take as little as 5 minutes. The only potential complication is needing a scan tool for post-install procedures like the airbag sync.
Will this 2011 Sierra Denali 2500 BCM fix my airbag light?
If the airbag light is caused by a faulty BCM (often indicated by code B1001), this part will resolve the root cause. However, you will still need to perform the ‘Setup SDM Primary Key’ procedure with a compatible scan tool to clear the light after installation.
Do I need to return my old BCM?
No, there is no core charge for this module. You can keep your old part, which saves you the time and expense of shipping it back.
How do I know if this BCM is compatible with my vehicle?
This module fits a wide range of 2007-2013 GM trucks and SUVs. The best way to confirm is to match the part number from your original module to one of the interchangeable numbers listed, such as 15263497 or 25844480. You can also use the fitment chart on our website.