Experiencing Baffling Electrical Problems in Your GM Truck or SUV?
If your 2003-2006 Cadillac Escalade EXT, Chevrolet Silverado, or GMC Sierra is suffering from strange electrical issues, a faulty Body Control Module (BCM) is the most likely culprit. The BCM is the central nervous system for your vehicle’s body electronics, managing everything from your power windows and door locks to your HVAC system and security features. When it fails, it can cause a cascade of frustrating and seemingly unrelated problems. This OEM-quality BCM, part number 15064149, is the definitive solution, delivered pre-programmed to your vehicle’s VIN for a hassle-free, plug-and-play installation.
Common Symptoms of a Failing GM BCM
- ✔ Intermittent or non-functional power windows, door locks, or interior/exterior lights.
- ✔ HVAC controls not working correctly, or the blower motor operating erratically.
- ✔ The security system acting up, leading to a no-start condition or false alarms.
- ✔ An illuminated airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Unexplained battery drain or persistent grounding issues.
- ✔ A variety of communication codes stored in the vehicle’s computer system.
Restore Full Functionality with a Pre-Programmed 2003-2006 Escalade EXT BCM
Don’t let a failing module keep your truck off the road or stuck with annoying glitches. This replacement BCM is meticulously prepared for your specific vehicle. We use your VIN to load the latest GM software updates, ensuring perfect communication between modules and restoring all electronic functions to factory specifications. This eliminates the need for expensive dealership programming, saving you time and money. By installing this reliable part, you’re not just fixing current problems—you’re preventing future electrical failures. This is the most effective way to address issues with your 2003-2006 Escalade EXT BCM and get your vehicle operating dependably again.
Installation is straightforward for the average DIYer and typically takes less than 15 minutes. The BCM is usually located under the driver’s side dashboard, near the steering column. Once installed, some vehicles may require a simple ‘Setup SDM Primary Key in BCM’ procedure if the airbag light remains on, which can be performed with a professional-grade scan tool. There is no core charge, so you can keep your old part without any extra hassle.
This module is a direct replacement for a wide range of part numbers, including: 15116066, 10383536, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15198116, 15257043, 15257044, 15257045, 15257046, 10367690, 15064149, and 15194170.
Frequently Asked Questions
Is this Body Control Module really plug-and-play?
Yes! We program the module to your vehicle’s specific VIN before shipping. This ensures it works with your existing keys and factory options right out of the box, with no need for a trip to the dealership for programming.
Where is the BCM located on my 2004 Silverado or 2005 Tahoe?
On most compatible GM trucks and SUVs from this era, including the Silverado, Sierra, Tahoe, and Yukon, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column.
What if my airbag light is on after I install the new BCM?
In some cases, the new BCM needs to be electronically introduced to the airbag system’s computer (SDM). This is done via a ‘Setup SDM Primary Key in BCM’ procedure, which requires a professional diagnostic scan tool. This will sync the modules and turn off the light.
Do I need to send my old part back?
No. There is no core charge or requirement to return your original BCM. You can keep it or dispose of it at your convenience.
Will this part fix my intermittent ‘Service 4WD’ message?
While the BCM can cause a wide range of electrical issues, a ‘Service 4WD’ message is often related to the Transfer Case Control Module (TCCM) or the encoder motor. It’s best to have the specific codes read to confirm the faulty component.
What is the warranty on this 2003-2006 Escalade EXT BCM?
This part comes with a one-year warranty, giving you peace of mind and assurance in the quality and reliability of your repair.