Are you battling persistent and unpredictable electrical problems in your GM truck or SUV? Symptoms like malfunctioning power windows, erratic door locks, a dead HVAC system, or a frustrating no-start condition often point to a single culprit: 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 VIN-programmed BCM is the definitive solution, designed to restore full functionality to your 2003-2007 GMC Sierra, Chevrolet Silverado, Tahoe, Suburban, and other compatible GM models.
From the Diagnostic Bay
We once had a 2005 Silverado 1500 in the shop where the owner had spent hundreds replacing the blower motor, resistor, and the entire HVAC control head, yet the air conditioning would still cut out randomly. After checking the wiring, we scanned the BCM and found intermittent communication faults. We installed a VIN-programmed BCM, and all the issues vanished instantly. It’s a classic case where chasing individual symptoms can be costly; addressing the central controller first is often the most efficient repair.
Is Your GM Truck’s BCM Failing?
- ✔ Unresponsive or intermittent power windows, door locks, or interior/exterior lights.
- ✔ HVAC system failures, including a blower that won’t turn on or works sporadically.
- ✔ An illuminated airbag warning light, often accompanied by diagnostic trouble code B1001.
- ✔ Security system malfunctions, causing the vehicle to not start or the alarm to go off unexpectedly.
- ✔ A variety of seemingly unrelated electrical glitches and communication DTCs.
The Direct-Fit 2003-2007 Sierra Body Control Module Solution
This module is not just a replacement part; it’s a complete, ready-to-install solution. We pre-program the module to your vehicle’s specific VIN before shipping, loading it with the latest GM software updates. This critical step ensures seamless integration with your truck’s existing systems, eliminating the need for expensive and time-consuming programming at a dealership. It’s designed to resolve common DTCs and restore the precise operation of your vehicle’s accessories right out of the box.
Installation is straightforward for a DIYer or professional technician. The BCM is typically located under the driver’s side dashboard, near the steering column. The process involves disconnecting the battery, unplugging the old module, and plugging in the new one. There is no core charge, so you can keep your old part without any hassle.
Post-Installation Notes: In some cases, particularly if the airbag light was on, a secondary procedure called ‘Setup SDM Primary Key in BCM’ may be required using a professional scan tool to sync the new BCM with the airbag system. Additionally, a Brake Pedal Position Sensor relearn might be necessary on certain models. Always consult a factory service manual for vehicle-specific instructions.
This BCM is a direct replacement for a wide range of part numbers, including: 10383536, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, and 15194170.
Frequently Asked Questions
What does a Body Control Module do on a GMC Sierra?
The BCM acts as the brain for your truck’s body electronics. It controls non-engine related functions like power windows, door locks, interior and exterior lighting, the security system, wipers, and the HVAC climate control system.
Do I need to program this BCM?
No. We pre-program the module to your vehicle’s VIN before it ships. This makes the installation plug-and-play and saves you a trip to the dealership for expensive programming.
Is this part difficult to install?
Installation is generally simple and can take as little as 5-10 minutes. The BCM is usually located under the steering column. You just need to disconnect the battery, unplug the old module’s electrical connectors, and plug in the new one.
What if my airbag light is on after I install the new BCM?
If the airbag light is on, it means the new BCM needs to be synchronized with the airbag’s sensing and diagnostic module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which must be performed with a professional-grade diagnostic tool.
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 fitment list on this page and verify that your vehicle is included. You can also match your original part number to the list of interchangeable numbers we provide.
Is there a warranty included with this part?
Yes, this Body Control Module comes with a one-year warranty, giving you peace of mind and guaranteeing its quality and reliability for your daily driving needs.