Are you experiencing a cascade of bizarre electrical issues in your GM truck or SUV? One moment the power windows won’t work, the next the A/C is dead, and a persistent airbag light is on your dash. These aren’t separate problems; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features, and when it malfunctions, it can make your truck feel possessed. Restore order and full functionality with this direct-fit, VIN-programmed Body Control Module, part number 15137395.
This isn’t just a replacement part; it’s a complete solution. We pre-program the module to your vehicle’s specific VIN before shipping. This means no expensive trips to the dealership for coding or flashing. It arrives ready for a true plug-and-play installation, immediately syncing with your truck’s existing systems and options to resolve frustrating electrical gremlins and clear persistent diagnostic trouble codes (DTCs).
Is Your GM Truck or SUV Showing These Symptoms?
- ✔ Erratic or non-functional power windows, door locks, or interior/exterior lights.
- ✔ HVAC system failures, including a blower motor that won’t turn on or stays stuck on one speed.
- ✔ An illuminated airbag warning light, often accompanied by DTC B1001.
- ✔ Security system malfunctions, leading to a no-start condition or false alarms.
- ✔ Unexplained battery drain or strange grounding-related problems.
- ✔ Multiple communication-related DTCs stored in the vehicle’s memory.
Plug-and-Play Solution for Your 2003-2007 Sierra Denali BCM
This module is engineered to meet or exceed original equipment standards for reliability and performance. It’s the definitive fix for your 2003-2007 Sierra Denali BCM and is also a direct replacement for a wide range of popular GM vehicles, including the Chevrolet Silverado, Tahoe, Suburban, Avalanche, and GMC Yukon. By replacing your old, failing unit, you’re not just fixing a symptom—you’re restoring the core of your vehicle’s electronic architecture for dependable operation. Installation is straightforward for any DIYer with basic tools, typically located under the driver’s side dashboard. For your convenience, there is no core charge, so you don’t have to worry about sending the old part back.
Please Note Post-Installation Procedures: In some cases, particularly if the airbag light was on, a post-install procedure like an ‘SDM Key Relearn’ may be required using a professional-grade scan tool to sync the new BCM with the airbag system. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary. These are standard procedures and do not indicate a fault with the module.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM is a computer in your vehicle that controls and monitors dozens of body-related electronic functions. This includes power windows, locks, lights, wipers, the security system, and HVAC controls.
Is this BCM ready to install right out of the box?
Yes! We program the module to your vehicle’s VIN before it ships. This ensures it works with your specific options and requires no additional dealership programming for installation.
What if my airbag light is on after I install the new BCM?
If the airbag light remains on, your vehicle may require a ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system and must be performed with a professional diagnostic tool.
Do I need to return my old, faulty BCM?
No. We do not require the original part to be returned. There is no core charge associated with this purchase, saving you time and hassle.
How can I be sure this part will fit my truck?
This module fits a wide range of 2002-2007 GM trucks and SUVs. Please check the detailed fitment list on this page or match your original part number to one of the interchangeable numbers like 15116066, 15137395, or 15198116 to confirm compatibility.