Are you experiencing frustrating and unpredictable electrical issues with your 2003-2006 Cadillac Escalade ESV? Problems like flickering lights, 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 wide range of confusing symptoms. This OEM-quality replacement BCM, part number 15137394, is the definitive solution to restore your vehicle’s full functionality.
We take the guesswork out of the repair by pre-programming this module to your vehicle’s specific VIN. This means no expensive trips to the dealership for programming are required. It arrives ready for a straightforward, plug-and-play installation, allowing you to get your luxury SUV back on the road quickly and reliably.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ HVAC and climate control system failures, including an inoperative blower fan.
- ✔ Airbag warning light illuminated on the dash, often with DTC B1001.
- ✔ Security system malfunctions, leading to no-start conditions.
- ✔ Wipers behaving unpredictably or not working at all.
- ✔ A cluster of seemingly unrelated diagnostic trouble codes (DTCs).
Solving Issues with Your Escalade ESV Body Control Module
This module is a direct-fit replacement, engineered to meet or exceed original equipment specifications. It is fully compatible with a wide range of GM trucks and SUVs from this era, including the Chevrolet Tahoe, Suburban, Silverado, GMC Sierra, and Hummer H2. It serves as a reliable replacement for multiple part numbers, including 15116066, 15136225, 15137393, 15198116, and others listed in the fitment guide.
Installation & Post-Install Notes
Installation is simple for the average DIYer. The BCM is typically located under the driver’s side dashboard, near the steering column. Disconnecting the battery before you begin is recommended. Once the new module is installed, you may need to perform a ‘Setup SDM Primary Key in BCM’ procedure with a professional scan tool, but only if the airbag light remains on. In some cases, a Brake Pedal Position Sensor relearn may also be needed. Best of all, there is no core charge—you can keep your old part without any hassle.
Frequently Asked Questions
What does a Body Control Module do on my Escalade ESV?
The Escalade ESV Body Control Module acts as the brain for your vehicle’s comfort and convenience electronics. It manages functions like your power windows, door locks, interior/exterior lights, security system, wipers, and HVAC controls.
Is this BCM difficult to install?
No, installation is typically very straightforward. It’s a plug-and-play part located under the steering column. The entire process can usually be completed in under 15 minutes with basic tools.
Will I need to visit the dealership after installing this part?
No. We pre-program the module to your vehicle’s VIN before shipping. This ensures it works correctly right out of the box, saving you the time and expense of dealership programming.
What if my airbag light is on after installation?
If the airbag light appears, it means the new BCM needs to be synced with the airbag system’s SDM. This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be performed by a technician with an advanced diagnostic tool.
How do I know for sure that my BCM is the problem?
While the symptoms listed are strong indicators, the best way to confirm a bad BCM is with a professional diagnostic scan. Look for multiple communication error codes (U-codes) or codes specifically related to BCM failure, like B1001.
Is there a core charge for this part?
No, there is no core charge. You are not required to send your old module back, making the replacement process simpler and more convenient for you.