Is Your GM Truck or SUV Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, unresponsive power windows, a malfunctioning HVAC system, or a persistent airbag light in your 2003-2007 GMC Sierra Denali, Chevrolet Silverado, Tahoe, or other compatible GM vehicle, a failing Body Control Module (BCM) is the likely culprit. The BCM is the central command center for your vehicle’s body electronics. When it fails, it can cause a cascade of frustrating and seemingly unrelated issues. This VIN-programmed GM 15116066 BCM is the definitive solution to restore your vehicle’s full functionality and peace of mind.
Expert Pro Tip
Expert Pro Tip
Before you begin the installation, always disconnect the negative terminal of your vehicle’s battery. This not only prevents accidental electrical shorts but also helps clear any lingering fault codes from the old module, giving the new BCM a clean slate to work with upon connection.
Diagnose and Solve Your Electrical Issues
A faulty BCM can manifest in numerous ways, making diagnosis tricky. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement. This module is engineered to resolve these exact problems, getting you back on the road without a costly trip to the dealership.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional HVAC controls and blower motor.
- ✔ Power windows, door locks, or mirrors that work sporadically or not at all.
- ✔ An illuminated airbag warning light, often with DTCs like B1001.
- ✔ Security system faults, leading to no-start or random alarm activation.
- ✔ Inoperative interior dome lights, exterior lights, or windshield wipers.
- ✔ Communication errors between various vehicle modules.
Plug-and-Play Solution for Your 2003-2007 Sierra Denali BCM
Forget about expensive dealership programming. We pre-program this 15116066 BCM to your vehicle’s specific VIN before it ships. This ensures it communicates flawlessly with your truck’s existing systems right out of the box. The installation is straightforward, typically taking less than 5 minutes. The BCM is usually located under the driver’s side dashboard, near the steering column. Simply unplug the old module, plug this one in, and reconnect your battery. For most owners, the process is that simple.
This module is a direct replacement for a wide range of part numbers, including: 10383536, 15136225, 15137393, 15198116, 15257043, and more, ensuring broad compatibility across the GM truck and SUV lineup from 2002-2007.
Post-Installation Procedures
In some cases, minor follow-up procedures may be needed. If your airbag light remains on after installation, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems. Additionally, some models may require a Brake Pedal Position Sensor relearn. There is no core charge for this part, so you can keep your old module without any hassle.
Frequently Asked Questions
Expert Pro Tip
Before you begin the installation, always disconnect the negative terminal of your vehicle’s battery. This not only prevents accidental electrical shorts but also helps clear any lingering fault codes from the old module, giving the new BCM a clean slate to work with upon connection.